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{{Short description|Plurality voting method}} {{Short description|Plurality voting system}}{{Use dmy dates|date=March 2023}}{{Citation style|date=July 2024}}
{{Splitto|date=September 2024|Single-member district}}{{Electoral systems sidebar|expanded=Single-winner}}
{{Use dmy dates|date=February 2020}}
]).]]
{{Electoral systems}}

In a '''first-past-the-post''' ] ('''FPTP''' or '''FPP''';<ref>{{cite web |title=First past the post |url=https://nzhistory.govt.nz/politics/fpp-to-mmp/first-past-the-post |website=nzhistory.govt.nz |publisher=] |access-date=25 May 2022 |language=en |date=13 January 2016}}</ref> formally called '''single-member plurality voting''' ('''SMP''') when used in single-member districts, or (informally) '''choose-one voting''' in contrast to ]<ref>{{cite web |url=https://www.fairvote.org/how_ranked_choice_voting_survives_the_one_person_one_vote_challenge |title=How ranked choice voting survives the 'one person, one vote' challenge |author=Shawn Griffiths
|date=December 5, 2018 |publisher=]}}</ref> or ]<ref>{{cite web |title=Comparing Voting Methods: A Report Card |url=https://www.starvoting.us/report_card |access-date=11 January 2022}}</ref>), voters cast their vote for a candidate of their choice, and the candidate who receives the most votes wins (even if the top candidate gets less than 50%, which can happen when there are more than two popular candidates).


] ]
'''First-past-the-post voting''' ('''FPTP'''), also known as '''first-preference plurality''' ('''FPP''') or '''single-member district plurality''' ('''SMDP''')—often shortened simply to '''plurality'''—is a ] voting rule. Voters typically mark one candidate as their favorite, and the candidate with the largest number of ] marks (a ]) is elected, regardless of whether they have over half of all votes (a '']''). The name ''first-past-the-post'' is a reference to ] (where bettors would guess which horse they thought would be first past the finishing post).<ref>{{Cite web |date=2018-07-31 |title=First-past-the-post: a rogue's practice? |url=https://onelections.net/2018/07/31/first-past-the-post-a-rogues-practice/ |access-date=2024-09-09 |website=On Elections |language=en}}</ref><ref>{{cite web |date=13 January 2016 |title=First past the post |url=https://nzhistory.govt.nz/politics/fpp-to-mmp/first-past-the-post |url-status=live |archive-url=https://web.archive.org/web/20220524111637/https://nzhistory.govt.nz/politics/fpp-to-mmp/first-past-the-post |archive-date=24 May 2022 |access-date=25 May 2022 |website=nzhistory.govt.nz |publisher=] |language=en}}</ref><ref>{{cite web |date=6 September 2010 |title=First Past the Post and Alternative Vote explained |url=https://www.gov.uk/government/publications/first-past-the-post-and-alternative-vote-explained |url-status=live |archive-url=https://web.archive.org/web/20240118113041/https://www.gov.uk/government/publications/first-past-the-post-and-alternative-vote-explained |archive-date=18 January 2024 |access-date=13 July 2024 |website=gov.uk}}</ref> In ], FPP is generally treated as a ] variant of ], where voters rank the candidates, but only the first preference matters. As a result, FPP is usually implemented with a '''choose-one ballot''', where voters place a single bubble next to their favorite candidate.


FPP has been used to elect the ] since the ].<ref>{{cite web |date=26 September 2016 |title=The Boundaries Review is a chance to bring back multi-member constituencies |url=https://blog.politics.ox.ac.uk/boundaries-review-chance-bring-back-multi-member-constituencies/}}</ref> Throughout the 20th century, many countries that previously used FPP have abandoned it in favor of other electoral systems, including the former British colonies of ] and ].
As a ] method, FPTP often produces disproportional results (when electing members of an assembly, such as a ]) in the sense that political parties do not get representation according to their share of the popular vote. This usually favours the largest party and parties with strong regional support to the detriment of smaller parties without a geographically concentrated ]. Supporters of ] are generally highly critical of FPTP because of this and point out other flaws, such as FPTP's vulnerability to ], the high amount of ] and the chance of a majority reversal (when the party that wins the most votes gets fewer seats than the second largest party, and so loses the election). For these reasons, many countries have abandoned FPTP in favour of other electoral system, but FPTP is used as the primary form of allocating seats for legislative elections in about a third of the world's countries, mostly in the ].


Most ] still ] retain FPP for most elections. However, the combination of ] with the ] mean the country has effectively used a variation on the ] since ], where the first round selects two major contenders who go on to receive the overwhelming majority of votes.<ref name=":0322">{{Cite web |last1=Santucci |first1=Jack |last2=Shugart |first2=Matthew |last3=Latner |first3=Michael S. |date=2023-10-16 |title=Toward a Different Kind of Party Government |url=https://protectdemocracy.org/work/toward-a-different-kind-of-party-government/ |url-status=live |archive-url=https://web.archive.org/web/20240716205506/https://protectdemocracy.org/work/toward-a-different-kind-of-party-government/ |archive-date=2024-07-16 |access-date=2024-07-16 |website=Protect Democracy |language=en-US |quote="Finally, we should not discount the role of primaries. When we look at the range of countries with ] (FPTP) elections (given no primaries), none with an assembly larger than Jamaica’s (63) has a strict two-party system. These countries include the ] and ] (where multiparty competition is in fact nationwide). Whether the U.S. should be called ‘FPTP’ itself is dubious, and not only because some states (e.g. ]) hold runoffs or use the ] (e.g. ]). '''Rather, the U.S. has an unusual two-round system in which the first round winnows the field. This usually is at the intraparty level, although sometimes it is without regard to party (e.g. in Alaska and California).'''"}}</ref><ref>{{Cite book |last1=Gallagher |first1=Michael |title=The Politics of Electoral Systems |last2=Mitchell |first2=Paul |date=2005-09-15 |publisher=OUP Oxford |isbn=978-0-19-153151-4 |page=192 |language=en |chapter=The American Electoral System |quote="American elections become a two-round run-off system with a delay of several months between the rounds." |chapter-url=https://books.google.com/books?id=Igdj1P4vBwMC&q=%22American+elections+become+a+two-round+run-off+system+with+a+delay+of+several+months+between+the+rounds.%22&pg=PA3}}</ref><ref>{{Citation |last1=Bowler |first1=Shaun |title=The United States: A Case of Duvergerian Equilibrium |date=2009 |work=Duverger's Law of Plurality Voting: The Logic of Party Competition in Canada, India, the United Kingdom and the United States |pages=135–146 |url=https://link.springer.com/chapter/10.1007/978-0-387-09720-6_9 |access-date=2024-08-31 |place=New York, NY |publisher=Springer |language=en |doi=10.1007/978-0-387-09720-6_9 |isbn=978-0-387-09720-6 |quote=In effect, the primary system means that the USA has a two-round runoff system of elections. |last2=Grofman |first2=Bernard |last3=Blais |first3=André}}</ref>
Some countries use FPTP alongside proportional representation in a ] system, the PR element not compensating for but added to the disproportionality of FPTP. Others use it in so-called compensatory mixed systems, such as part of ] or ] systems, which aim to counterbalance these. In some countries that elect their legislatures by proportional representation, FPTP is used to elect their head of state.


]).]]
== Terminology ==
The phrase ''first-past-the-post'' is a metaphor from British ], where there is a post at the finish line<ref></ref> (though there is no specific percentage "finish line" required to win in this voting system, only being furthest ahead in the race).

FPTP is a ] method, a ] meaning the largest part of the whole, in contrast to '']'', which generally means more than half of the whole. Under FPTP the candidate with the highest number (but not necessarily a majority) of votes is elected. Sometimes the term ''relative majority'' is used to refer to a plurality as opposed to an ''absolute majority'' meaning a (standard) majority. The word majority is also sometimes used to refer to the number of votes (or percentage of votes) a candidate won an election with: "Candidate A won the election with a 5000 vote majority" would mean Candidate got 5000 more votes than Candidate B, but could also mean Candidate A won 5000 votes in total, and won.


== Example ==
Even though FPTP is a type of plurality voting, it is categorised as ], even though it is not "majority voting" (like a ] is). This is because ] (one of the 3 major types of electoral systems alongside ] and ]) is defined by the winner (of an electoral district) getting all the seats, and therefore all single-winner systems (such as FPTP) are majoritarian.
{{Tenn voting example}}


In FPTP, only the first preferences matter. As such, the votes would be counted as 42% for Memphis, 26% for Nashville, 17% for Knoxville, and 15% for Chattanooga. Since Memphis has the most votes, it would win a FPTP election, even though it is far from the center of the state and a ]. Similarly, ] would ], the easternmost city. This makes the election a ]. By contrast, both ]s and ] would ] (the capital of Tennessee).
FPTP is primarily used in systems that use ]. The multiple-member version of plurality voting is when each voter casts (up to) the same number of votes as there are positions to be filled, and those elected are the highest-placed candidates; this system is called the ] (MNTV) and is also known as ].


== Properties and effects ==
When voters have only a single vote each, which is non-transferable, but there are multiple seats to be filled, that system is called the ] (SNTV). When voters have only a single vote each, which is a preferential vote and transferable if necessary, but there are multiple seats to be filled, that system is called the ] (STV). The multiple-round election (]) method most commonly uses the FPTP voting method in the second round. The first round, usually held according to SNTV rules, determines which candidates may progress to the second and final round. As usually only two candidates are in the second round, one or the other takes a majority of the votes. Thus, it is truly majoritarian.
{| class="wikitable"

|+Table of ]
==Illustration==
!

!Pathology
Under a first-past-the-post voting method, the highest-polling candidate is elected. In this real-life illustration from the ], presidential candidate ] obtained a greater number of votes than any of the other candidates. Therefore, he was declared the winner, although the second-placed candidate had an inferior margin of only 0.35% and a majority of voters (64.8%) did not vote for Tony Tan:
!Explanation/details
It is not clear that Tan would have won if the votes against him had not been split among the other three candidates.
{{#section-h:2011 Singaporean presidential election|Results}}

==Effects==

The effect of a system based on plurality voting spread over a number of separate districts is that the larger parties, and parties with more geographically concentrated support, gain a disproportionately large share of seats, while smaller parties with more evenly distributed support gain a disproportionately small share. As voting patterns are similar in about two-thirds of the districts, it is more likely that a single party will hold a majority of legislative seats under FPTP than happens in a proportional system, and under FPTP it is rare to elect a majority government that actually had the support of a majority of voters.

In Canada only twice since 1921 has a majority government been elected with a majority of the votes.

In the United Kingdom, 19 of the 24 general elections since 1922 have produced a single-party ]. In all but two of them (1931 and 1935) the leading party did not take a majority of the votes.

For example, the ] results were as follows:

{| class=wikitable style=text-align:right
|+Summary of the 5{{nbsp}}May 2005 ] ]<br>(parties with more than one seat; not including N. Ireland)
|- |-
|{{Xmark}}
!Party!!Seats
|]
!Seats %
|The ] occurs when a majority of voters prefer some candidate ''Alice'' to every other candidate, but ''Alice'' still loses the election. First-past-the-post is vulnerable to this paradox because of vote-splitting.<ref name="lse27685">Felsenthal, Dan S. (2010) {{Webarchive|url=https://web.archive.org/web/20210224094341/http://eprints.lse.ac.uk/27685/1/Review_of_Paradoxes_Afflicting_Various_Voting_Procedures_(LSERO).pdf |date=24 February 2021 }}. In: Assessing Alternative Voting Procedures, London School of Economics and Political Science, London, UK.</ref>
!Votes %
!Votes
|- |-
|{{Xmark}}
|align=left|]||355||56.5||36.1||9,552,436
|]
|The ''']''' paradox happens when a majority of voters prefer every other candidate to ''A'', but ''Alice'' still wins. First-past-the-post is vulnerable to this paradox because of vote-splitting.<ref name="lse27685" />
|- |-
|{{Xmark}}
|align=left|]||198||31.5||33.2||8,782,192
|''']'''
|The center squeeze describes a type of violation of ] primarily affecting voting rules in the ] where the Condorcet winner is eliminated in an early round or otherwise due to a lack of first-preference support.
|- |-
|{{Xmark}}
|align=left|]||62||9.9||22.6||5,985,454
|''']'''
|A ] is when the results of an election between ''A'' and ''B'' is affected by voters' opinions on an unrelated candidate ''C''. First-past-the-post does not meet this criterion, which makes it vulnerable to ].
|- |-
|{{Xmark}}
|align=left|]||6||1.0||1.6||412,267
|]
|The ] is a particular kind of spoiler effect that involves several perfect copies, or "clones", of a candidate. Candidate-cloning causes vote-splitting in FPP.
|- |-
|{{Xmark}}
|align=left|]||3||0.5||0.7||174,838
|''']'''
|The best-is-worst paradox occurs when an electoral system declares the same candidate to be in first and last place, depending on whether voters rank candidates from best-to-worst or worst-to-best. FPP demonstrates this pathology, because a candidate can be both the FPP winner and also the ] loser.
|- |-
|{{Xmark}}
|align=left|Others||4||0.6||5.7||1,523,716
|]
|Lesser-evil voting occurs when voters are forced to support a "lesser of two evils" by rating them higher than their actual favorite candidate. FPP is vulnerable to this pathology.
|- |-
|{{Tick}}
!Total !!628!! !! !!26,430,908
|''']'''
| rowspan="2" |Since plurality does not consider later preferences on the ballot at all, it is impossible to either harm or help a favorite candidate by marking later preferences. Thus it passes both Later-No-Harm and Later-No-Help.
|-
|{{Tick}}
|]
|-
|{{Tick}}
|''']'''
|The multiple-districts paradox refers to a particularly egregious kind of ], when it is possible to draw a map where a candidate who loses the election nevertheless manages to win in every ]. This is not possible under FPP, or other ] methods.
|-
|{{Tick}}
|''']'''
|Perverse response occurs when a candidate loses as a result of receiving too ''much'' support from some voters, i.e. it is possible for a candidate to lose by receiving too many votes. FPP is not affected by this pathology.
|-
|{{Tick}}
|''']'''
|The ] is a situation where a candidate loses as a result of having ''too many'' supporters. In other words, adding a voter who supports ''A'' over ''B'' can cause ''A'' to lose to ''B''. FPP is not affected by this pathology.
|} |}
===Two-party rule===
{{Main|Duverger's law}}
]]]
Perhaps the most striking effect of FPP is the fact that the number of a party's seats in a legislature has nothing to do with its vote count in an election, only in how those votes were geographically distributed. This has been a target of criticism for the method, many arguing that a fundamental requirement of an election system is to accurately represent the views of voters. FPP often creates "false majorities" by over-representing larger parties (giving a majority of the parliamentary/legislative seats to a party that did not receive a majority of the votes) while under-representing smaller ones. In Canada, ]s have been formed due to one party winning a majority of the votes cast in Canada only three times since 1921: in ], ] and ]. In the United Kingdom, 19 of the 24 general elections since 1922 have produced a single-party majority government. In all but two of them (] and ]), the leading party did not take a majority of the votes across the UK.


In some cases, this can lead to a party receiving the plurality or even majority of total votes yet still failing to gain a plurality of legislative seats. This results in a situation called a ] or ].<ref>{{Cite journal|journal=American Economic Journal: Applied Economics|pages=327–357|volume=14|url=https://www.nber.org/papers/w26247|title=Inversions in US Presidential Elections: 1836-2016|first1=Michael|last1=Geruso|first2=Dean|last2=Spears|first3=Ishaana|last3=Talesara|date=5 September 2019|issue=1|doi=10.3386/w26247|pmid=38213750 |pmc=10782436 |archive-url=https://web.archive.org/web/20210319145533/https://www.nber.org/papers/w26247|access-date=14 July 2021|archive-date=19 March 2021|url-status=live}}</ref><ref>{{Cite web |url=https://slide-finder.com/view/ELECTION-INVERSIONS-BY-VARIANTS.214192.html |title=Election Inversions By Variants of the U.S. Electoral College |access-date=14 July 2021 |archive-date=18 July 2021 |archive-url=https://web.archive.org/web/20210718043847/https://slide-finder.com/view/ELECTION-INVERSIONS-BY-VARIANTS.214192.html |url-status=dead |first=Nicholas R. |last=Miller |department=Department of Political Science |agency=UMBC }}</ref> Famous examples of the second-place party (in votes nationally) winning a majority of seats include the elections in Ghana in ], New Zealand in ] and ], and the United Kingdom in ]. Famous examples of the second placed party (in votes nationally) winning a plurality of seats include the elections in Canada in ] and ] as well as in Japan in ]. Even when a party wins more than half the votes in an almost purely two-party-competition, it is possible for the runner-up to win a majority of seats. This happened in ] in ], ], and ] and in Belize in ]. Even with only two parties and equally-sized constituencies, winning a majority of seats just requires receiving more than half the vote in more than half the districts—even if the other party receives all the votes cast in the other districts—so just over a quarter of the vote is theoretically enough to win a majority in the legislature. With enough candidates splitting the vote in a district, the total number of votes needed to win can be made ].{{Citation needed|date=October 2024}}
In this example, Labour took a majority of the seats with only 36% of the vote. The largest ''two'' parties took 69% of the vote and 88% of the seats. In contrast, the Liberal Democrats took more than 20% of the vote but only about 10% of the seats.


=== Two-party systems ===
FPTP wastes fewer votes when it is used in two-party contests.
Under first-past-the-post, a small party may draw votes and seats away from a larger party that it is ''more'' similar to, and therefore give an advantage to one it is ''less'' similar to. For example, in the ], the left-leaning ] drew more votes from the left-leaning ], resulting in Nader ] for the Democrats. According to the political pressure group ], FPTP creates a powerful electoral incentive for large parties to target similar segments of voters with similar policies. The effect of this reduces political diversity in a country because the larger parties are incentivized to coalesce around similar policies.<ref>{{Cite web|title=First Past the Post|url=https://www.makevotesmatter.org.uk/first-past-the-post|access-date=26 June 2020|website=Make Votes Matter|archive-date=31 July 2020|archive-url=https://web.archive.org/web/20200731164815/https://www.makevotesmatter.org.uk/first-past-the-post|url-status=live}}</ref> The ] describes India's use of FPTP as a "legacy of British colonialism".<ref>{{Cite web|title=India – First Past the Post on a Grand Scale|url=https://aceproject.org/main/english/es/esy_in.htm|access-date=25 June 2020|website=ACE Electoral Knowledge Network}}</ref>


] is an idea in ] which says that constituencies that use first-past-the-post methods will lead to ]s, given enough time. Economist ] explains:
But waste of votes and minority governments are more likely when large groups of voters vote for three, four or more parties as in Canadian elections. Canada uses FPTP and only two of the last six federal Canadian elections produced single-party majority governments. In none of them did the leading party receive a majority of the votes
{{Blockquote|The main reason for America's majoritarian character is the electoral system for Congress. Members of Congress are elected in single-member districts according to the "first-past-the-post" (FPTP) principle, meaning that the candidate with the plurality of votes is the winner of the congressional seat. The losing party or parties win no representation at all. The first-past-the-post election tends to produce a small number of major parties, perhaps just two, a principle known in political science as ]. Smaller parties are trampled in first-past-the-post elections.|from Sachs's ''The Price of Civilization'', 2011<ref name="twsM18xxuy">{{Cite book |last=Sachs |first=Jeffrey |title=The Price of Civilization |date=2011 |publisher=Random House |isbn=978-1-4000-6841-8 |location=New York |page=107}}</ref>}}


However, most countries with first-past-the-post elections have multiparty legislatures (albeit with two parties larger than the others), the United States being the major exception.<ref>{{Cite journal |last1=Dunleavy |first1=Patrick |last2=Diwakar |first2=Rekha |year=2013 |title=Analysing multiparty competition in plurality rule elections |url=http://eprints.lse.ac.uk/38452/1/Dunleavy_Analysing%20multiparty_2014_author.pdf |journal=Party Politics |volume=19 |issue=6 |pages=855–886 |doi=10.1177/1354068811411026 |s2cid=18840573 |access-date=30 June 2016 |archive-date=9 June 2022 |archive-url=https://web.archive.org/web/20220609031929/http://eprints.lse.ac.uk/38452/1/Dunleavy_Analysing%20multiparty_2014_author.pdf |url-status=live }}</ref> There is a counter-argument to Duverger's Law, that while on the national level a plurality system may encourage two parties, in the individual constituencies supermajorities will lead to the vote fracturing.<ref>{{Cite journal |last1=Dickson |first1=Eric S.|author2-link=Kenneth Scheve |last2=Scheve |first2=Kenneth |year=2010 |title=Social Identity, Electoral Institutions and the Number of Candidates |journal=British Journal of Political Science |volume=40 |issue=2 |pages=349–375 |citeseerx=10.1.1.75.155 |doi=10.1017/s0007123409990354 |jstor=40649446|s2cid=7107526 }}</ref>
==Arguments in support==

Supporters of FPTP argue that it is easy to understand, and ballots can be counted and processed more easily than those in ] systems. {{Citation needed|date=February 2020}} FPTP often produces governments which have legislative voting majorities,<ref name="Williams1998">{{Cite book |last=Andy Williams |url=https://books.google.com/books?id=6keDJpK0xL8C&pg=PA24 |title=UK Government & Politics |publisher=Heinemann |year=1998 |isbn=978-0-435-33158-0 |page=24}}</ref> thus providing such governments the legislative power necessary to implement their electoral ] commitments during their term in office. This may be beneficial for the country in question in circumstances where the government's legislative agenda has broad public support, albeit potentially divided across party lines, or at least benefits society as a whole. However handing a legislative voting majority to a government which lacks popular support can be problematic where said government's policies favour only that fraction of the electorate that supported it, particularly if the electorate divides on tribal, religious, or urban–rural lines.

Supporters of FPTP also argue that the use of ] (PR) may enable smaller parties to become decisive in the country's ] and gain leverage they would not otherwise enjoy, although this can be somewhat mitigated by a large enough ]. They argue that FPTP generally reduces this possibility, except where parties have a strong regional basis. A journalist at '']'' noted that Israel's highly proportional ] "affords great power to relatively small parties, forcing the government to give in to political blackmail and to reach compromises";<ref>{{Cite news |last=Ilan |first=Shahar |title=Major Reforms Are Unlikely, but Electoral Threshold Could Be Raised |newspaper=Haaretz |url=https://www.haaretz.com/1.5074292 |access-date=8 May 2010 |publisher=Haaretz.com}}</ref><ref>{{Cite web |last=Dr.Mihaela Macavei, University of Alba Iulia, Romania |title=Advantages and disadvantages of the uninominal voting system |url=http://www.uab.ro/reviste_recunoscute/reviste_drept/annales_10_2007/macavei_en.pdf |access-date=8 May 2010}}</ref> ], defending FPTP, argued that other systems give small parties the balance of power, and influence disproportionate to their votes.<ref name="Dorey2008">{{cite book|author=P. Dorey|title=The Labour Party and Constitutional Reform: A History of Constitutional Conservatism|url=https://books.google.com/books?id=JsaHDAAAQBAJ&pg=PA400|date=17 June 2008|publisher=Palgrave Macmillan UK|isbn=978-0-230-59415-9|pages=400–}}</ref>
Allowing people into parliament who did not finish first in their district was described by ] as creating a "Parliament full of second-choices who no one really wanted but didn't really object to either."<ref>"]. "." ''Daily Telegraph.'' 30 Apr 2011</ref> ] criticized the alternative vote system as "determined by the most worthless votes given for the most worthless candidates."<ref name="Johnston2011">{{cite book|author=Larry Johnston|title=Politics: An Introduction to the Modern Democratic State|url=https://books.google.com/books?id=ZcpZ1eADwSMC&pg=PA231|date=13 December 2011|publisher=University of Toronto Press|isbn=978-1-4426-0533-6|pages=231–}}</ref>

==Arguments against==
===Unrepresentative===

]

First past the post is most often criticized for its failure to reflect the popular vote in the number of parliamentary/legislative seats awarded to competing parties. Critics argue that a fundamental requirement of an election system is to accurately represent the views of voters, but FPTP often fails in this respect. It often creates "false majorities" by over-representing larger parties (giving a majority of the parliamentary/legislative seats to a party that did not receive a majority of the votes) while under-representing smaller ones. The diagram here, summarizing Canada's 2015 federal election, demonstrates how FPTP can misrepresent the popular vote.

==== Wasted votes ====
]s are seen as those cast for losing candidates, and for winning candidates in excess of the number required for victory. For example, in the ], 52% of votes were cast for losing candidates and 18% were excess votes—a total of 70% "wasted" votes. On this basis a large majority of votes may play no part in determining the outcome. This winner-takes-all system may be one of the reasons why "voter participation tends to be lower in countries with FPTP than elsewhere."<ref>{{Cite book|last=Drogus|first=Carol Ann|url=https://archive.org/details/introducingcompa00drog/page/257|title=Introducing comparative politics: concepts and cases in context|publisher=CQ Press|year=2008|isbn=978-0-87289-343-6|pages=|url-access=registration}}</ref>

=== Majority reversal ===
A '''majority reversal''' or '''election inversion'''<ref></ref><ref></ref> is a situation where the party that gets an overall majority of votes loses the election or does not get a plurality of seats. Famous examples of the second placed party (in votes nationally) winning a majority of seats include the elections in Ghana in 2012, in New Zealand in 1978 and in 1981 and in the United Kingdom in 1951. Famous examples of the second placed party (in votes nationally) winning a plurality of seats include the election in Canada in 2019 and 2021.

Even when a party wins more than half the votes in an almost purely two-party-competition, it is possible for the runner-up to win a majority of seats. This happened in Saint Vincent and the Grenadines in ], ] and ] and in Belize in ].

This need not be a result of malapportionment. Even if all seats represent the same number of votes, the second placed party (in votes nationally) can win a majority of seats by efficient vote distribution. Winning seats narrowly and losing elsewhere by big margins is more efficient than winning seats by big margins and losing elsewhere narrowly. For a majority in seats, it is enough to win a plurality of votes in a majority of constituencies. Even with only two parties and equal constituencies, this means just over a quarter of the votes of the whole.

===Geographical problems===

] with Conservative and Labour removed.]]

====Geographical favouritism====

Generally FPTP favours parties who can concentrate their vote into certain voting districts (or in a wider sense in specific geographic areas). This is because in doing this they win many seats and don't 'waste' many votes in other areas.

The British ] (ERS) says that regional parties benefit from this system. "With a geographical base, parties that are small UK-wide can still do very well".<ref name="First Past the Post">{{Cite web |title=First Past the Post |url=https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |access-date=2019-12-16 |website=www.electoral-reform.org.uk |language=en-US}}</ref>

On the other hand, minor parties that do not concentrate their vote usually end up getting a much lower proportion of seats than votes, as they lose most of the seats they contest and 'waste' most of their votes.<ref name="electoral-reform1">{{Cite web |title=First Past the Post |url=https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |access-date=2019-12-05 |website=www.electoral-reform.org.uk |language=en-US}}</ref>

The ERS also says that in FPTP elections using many separate districts "small parties without a geographical base find it hard to win seats".<ref name="First Past the Post" />

] said that in the ], "the Green Party, Liberal Democrats and UKIP (minor, non-regional parties) received 11% of votes between them, yet they ''shared'' just 2% of seats", and in the ], "he same three parties received almost a quarter of all the votes cast, yet these parties ''shared'' just 1.5% of seats."<ref name=":0">{{Cite web |title=Make Votes Matter—Everything wrong with First Past the Post—Proportional Representation |url=https://www.makevotesmatter.org.uk/first-past-the-post |access-date=2019-12-16 |website=Make Votes Matter |language=en-GB}}</ref>

According to Make Votes Matter, and shown in the chart below,<ref>{{Citation |title=File:First-past-the-post 2015.svg |url=https://en.wikipedia.org/File:First-past-the-post_2015.svg |work=Misplaced Pages |language=en |access-date=2019-12-14}}</ref> in the 2015 UK general election ] came in third in terms of number of votes (3.9 million/12.6%), but gained only one seat in Parliament, resulting in one seat per 3.9 million votes. The Conservatives on the other hand received one seat per 34,000 votes.<ref name=":0" />

]]]


=== Strongholds, key constituencies and kingmakers ===
====Distorted geographical representation====
It has been suggested that the distortions in geographical representation provide incentives for parties to ignore the interests of areas in which they are too weak to stand much chance of gaining representation, leading to governments that do not govern in the national interest. Further, during election campaigns the campaigning activity of parties tends to focus on ]s where there is a prospect of a change in representation, leaving safer areas excluded from participation in an active campaign.<ref>{{Cite web |date=2011-01-04 |title=First Past the Post is a 'broken voting system' |url=https://www.ippr.org/news-and-media/press-releases/first-past-the-post-is-a-broken-voting-system |access-date=15 November 2017 |website=ippr.org |publisher=Institute for Public Policy Research |archive-date=15 November 2017 |archive-url=https://web.archive.org/web/20171115223042/https://www.ippr.org/news-and-media/press-releases/first-past-the-post-is-a-broken-voting-system |url-status=live }}</ref> Political parties operate by targeting districts, directing their activists and policy proposals toward those areas considered to be marginal, where each additional vote has more value.<ref>{{Cite web |last=Terry |first=Chris |date=2013-08-28 |title=In Britain's first past the post electoral system, some votes are worth 22 times more than others |url=http://www.democraticaudit.com/2013/08/28/in-britains-first-past-the-post-electoral-system-some-votes-are-worth-22-times-more-than-others/ |access-date=15 November 2017 |website=democraticaudit.com |publisher=London School of Economics}}</ref><ref>{{Cite web |last=Galvin |first=Ray |title=What is a marginal seat? |url=http://www.justsolutions.eu/marginals/startmarginals.html |access-date=15 November 2017 |website=justsolutions.eu |archive-date=15 November 2017 |archive-url=https://web.archive.org/web/20171115215649/http://www.justsolutions.eu/marginals/startmarginals.html |url-status=live }}</ref><ref name="electoral-reform1" />


This feature of FPTP has often been used by its supporters in contrast to proportional systems. In the latter, smaller parties act as 'kingmakers' in coalitions as they have greater bargaining power and therefore, arguably, their influence on policy is disproportional to their parliamentary size- this is largely avoided in FPP systems where majorities are generally achieved.<ref name="Brams/Kilgour2010">{{cite journal |author=Brams/Kilgour. Dorey |title=Kingmakers and leaders in coalition formation |journal=Social Choice and Welfare |year=2013 |volume=41 |issue=1 |pages=1–18 |doi=10.1007/s00355-012-0680-4 |jstor=42001390 |s2cid=253849669 |url=https://www.jstor.org/stable/42001390 |hdl=10419/53209 |hdl-access=free |access-date=11 March 2023 |archive-date=11 March 2023 |archive-url=https://web.archive.org/web/20230311121637/https://www.jstor.org/stable/42001390 |url-status=live }}</ref> FPP often produces governments which have legislative voting majorities,<ref name="Williams1998">{{Cite book |last=Andy Williams |url=https://books.google.com/books?id=6keDJpK0xL8C&pg=PA24 |title=UK Government & Politics |publisher=Heinemann |year=1998 |isbn=978-0-435-33158-0 |page=24 |access-date=11 October 2016 |archive-date=22 May 2024 |archive-url=https://web.archive.org/web/20240522102106/https://books.google.com/books?id=6keDJpK0xL8C&pg=PA24#v=onepage&q&f=false |url-status=live }}</ref> thus providing such governments the legislative power necessary to implement their electoral ] commitments during their term in office. This may be beneficial for the country in question in circumstances where the government's legislative agenda has broad public support, albeit potentially divided across party lines, or at least benefits society as a whole. However handing a legislative voting majority to a government which lacks popular support can be problematic where said government's policies favor only that fraction of the electorate that supported it, particularly if the electorate divides on tribal, religious, or urban–rural lines. There is also the perceived issue of unfair coalitions where a smaller party can form a coalition with other smaller parties and form a government, without a clear mandate as was the case in the ] where the leading party ], was unable to form a coalition so ], a smaller party, managed to form a government without being the largest party. The use of ] (PR) may enable smaller parties to become decisive in the country's ] and gain leverage they would not otherwise enjoy, although this can be somewhat mitigated by a large enough ]. They argue that FPP generally reduces this possibility, except where parties have a strong regional basis. A journalist at '']'' noted that Israel's highly proportional ] "affords great power to relatively small parties, forcing the government to give in to political blackmail and to reach compromises";<ref>{{Cite news |last=Ilan |first=Shahar |title=Major Reforms Are Unlikely, but Electoral Threshold Could Be Raised |newspaper=Haaretz |url=https://www.haaretz.com/1.5074292 |access-date=8 May 2010 |archive-date=21 August 2019 |archive-url=https://web.archive.org/web/20190821221203/https://www.haaretz.com/1.5074292 |url-status=live }}</ref><ref>{{Cite web |last=Macavei |first=Mihaela |publisher=University of Alba Iulia |location=Romania |title=Advantages and disadvantages of the uninominal voting system |url=http://www.uab.ro/reviste_recunoscute/reviste_drept/annales_10_2007/macavei_en.pdf |access-date=8 May 2010 |archive-date=24 December 2019 |archive-url=https://web.archive.org/web/20191224074113/http://www.uab.ro/reviste_recunoscute/reviste_drept/annales_10_2007/macavei_en.pdf |url-status=dead }}</ref> ], defending FPP, argued that other systems give small parties the balance of power, and influence disproportionate to their votes.<ref name="Dorey2008">{{cite book|author=P. Dorey|title=The Labour Party and Constitutional Reform: A History of Constitutional Conservatism|url=https://books.google.com/books?id=JsaHDAAAQBAJ&pg=PA400|date=17 June 2008|publisher=Palgrave Macmillan UK|isbn=978-0-230-59415-9|pages=400–}}</ref>
The winner-takes-all nature of FPTP leads to distorted patterns of representation, since it exaggerates the correlation between party support and geography.


The concept of kingmakers is adjacent to how ] criticized the ] system as "determined by the most worthless votes given for the most worthless candidates."<ref name="Johnston2011">{{cite book|author=Larry Johnston|title=Politics: An Introduction to the Modern Democratic State|url=https://books.google.com/books?id=ZcpZ1eADwSMC&pg=PA231|date=13 December 2011|publisher=University of Toronto Press|isbn=978-1-4426-0533-6|pages=231–}}</ref> meaning that votes for the least supported candidates may change the outcome of the election between the most supported candidates. In this case however, this is a feature of the alternative vote, since those votes would have otherwise been wasted (and in some sense this makes every vote count, as opposed to FPP), and this effect is only possible when no candidate receives an outright majority of first preference votes. it is related to kingmakers in that the lesser-known candidates may encourage their supporters to rank the other candidates a certain way. Supporters of electoral reform generally see this as a positive development, and claim that alternatives certain to FPP will encourage less negative and more positive campaigning, as candidates will have to appeal to a wider group of people. Opinions are split on whether the alternative vote (better known as ] outside the UK) achieves this better than other systems.
For example, in the UK the ] represents most of the rural seats in England, and most of the south of England, while the ] represents most of the English cities and most of the north of England.<ref>{{Cite journal |title=Divided by Values: Jeremy Corbyn, the Labour Party and England's 'North-South Divide' |last1=Beech |first1=Matt |date=2020-07-03 |url=https://journals.openedition.org/rfcb/5456 |last2=Hickson |first2=Kevin|journal=Revue Française de Civilisation Britannique |volume=XXV |issue=2 |doi=10.4000/rfcb.5456 |s2cid=198655613 }}</ref> This pattern hides the large number of votes for the non-dominant party. Parties can find themselves without elected politicians in significant parts of the country, heightening feelings of regionalism. Party supporters (who may nevertheless be a significant minority) in those sections of the country are unrepresented.


=== Extremist parties ===
In the 2019 Canadian federal election ] won 98% of the seats in Alberta and Saskatchewan with only 68% of the vote. The lack of non-Conservative representation gives the appearance of greater Conservative support than actually exists.<ref>{{Cite web |title=First Past the Post |url=http://www.conservativeelectoralreform.org/support-reform/first-past-the-post/ |url-status=dead |archive-url=https://web.archive.org/web/20171115214736/http://www.conservativeelectoralreform.org/support-reform/first-past-the-post/ |archive-date=15 November 2017 |access-date=15 November 2017 |website=www.conservativeelectoralreform.org |publisher=Conservative Action for Electoral Reform}}</ref> Similarly, in Canada's 2021 elections, the Conservative Party won 88% of the seats in Alberta with only 55% of the vote, and won 100% of the seats in Saskatchewan with only 59% of the vote.<ref>{{cite web |url=https://enr.elections.ca/Provinces.aspx |title=Elections Canada - Results by Province(s) |work=2021 Elections Canada - Provinces |publisher=Elections Canada |date=2020-09-21 |accessdate=2021-11-04 }}</ref>
Supporters and opponents of FPP often argue whether FPP advantages or disadvantages extremist parties. Among single-winner systems, FPP suffers from the ], where more moderate candidates are squeezed out by more extreme ones. However, the different types (or the absence of) of party primaries maybe strengthen or weaken this effect. In general, FPP has no mechanism that would benefit more moderate candidates and many supporters of FPP defend it electing the largest and most unified (even if more polarizing) minority over a more consensual majority supported candidate. Allowing people into parliament who did not finish first in their district was described by ] as creating a "Parliament full of second-choices who no one really wanted but didn't really object to either."<ref>"]. " {{Webarchive|url=https://web.archive.org/web/20180118220917/http://www.telegraph.co.uk/news/politics/av-referendum/8485118/David-Cameron-why-keeping-first-past-the-post-is-vital-for-democracy.html|date=18 January 2018}}." ''Daily Telegraph.'' 30 April 2011</ref>


However, FPP often results in ], which has prevented extreme left- and right-wing parties from gaining parliamentary seats{{Citation needed|date=September 2024}}, as opposed to ]. This also implies that strategic voting is necessary to keep extremists from gaining seats, which often fails to materialize in practice for multiple reasons. In comparison, many other systems encourage voters to rank other candidates and thereby not (or at least less often to) have to strategically compromise on their first choice at the same time.
==== Safe seats ====
First-past-the-post within geographical areas tends to deliver (particularly to larger parties) a significant number of ]s, where a representative is sheltered from any but the most dramatic change in voting behaviour. In the UK, the Electoral Reform Society estimates that more than half the seats can be considered as safe.<ref>{{Cite web|date=2010-04-07|title=General Election 2010: Safe and marginal seats|url=https://www.theguardian.com/news/datablog/2010/apr/07/election-safe-seats-electoral-reform|access-date=15 November 2017|website=www.theguardian.com|publisher=Guardian Newspapers}}</ref> It has been claimed that members involved in the 2009 ] were significantly more likely to hold a safe seat.<ref>{{Cite web|last=Wickham|first=Alex|title="Safe seats" almost guarantee corruption|url=http://www.thecommentator.com/article/3678/_safe_seats_almost_guarantee_corruption|access-date=15 November 2017|website=www.thecommentator.com}}</ref><ref>{{Cite web|title=FactCheck: expenses and safe seats|url=http://www.channel4.com/news/articles/uk/factcheck+expenses+and+safe+seats/3388597.html|access-date=15 November 2017|website=www.channel4.com|publisher=Channel 4}}</ref>


On the other hand, ] published a report in April 2019 stating that, " FPP can ... abet ], since should a radical faction gain control of one of the major political parties, FPP works to preserve that party's position. ...This is because the psychological effect of the plurality system disincentivises a major party's supporters from voting for a minor party in protest at its policies, since to do so would likely only help the major party's main rival. Rather than curtailing extreme voices, FPP today empowers the (relatively) extreme voices of the Labour and Conservative party memberships."<ref>{{Cite news|first=Peter|last=Walker|date=22 April 2019|title=First past the post abets extreme politics, says thinktank|work=]|url=https://www.theguardian.com/politics/2019/apr/23/first-past-the-post-abets-extreme-politics-says-thinktank|archive-url=https://ghostarchive.org/archive/20231206101252/https://www.theguardian.com/politics/2019/apr/23/first-past-the-post-abets-extreme-politics-says-thinktank|archive-date=6 December 2023|url-status=live|access-date=23 June 2020}}</ref><ref>{{Cite web|title=The Electoral System and British Politics|url=https://consoc.org.uk/publications/the-electoral-system-and-british-politics/|website=consoc.org.uk|access-date=23 June 2020|archive-date=25 June 2020|archive-url=https://web.archive.org/web/20200625171041/https://consoc.org.uk/publications/the-electoral-system-and-british-politics/|url-status=live}}</ref> For example, the ], a mixed system dominated by FPP have seen Fidesz (right-wing, populist party) win 135 seats in the ] and has remained the largest party in Hungary since ] by changing the electoral system to mostly use FPP instead of the previous mixed system using mostly the ]. Since 2010, Fidesz has implemented other anti-democratic reforms that now mean the European Parliament no longer qualifies Hungary as a full democracy.<ref>{{cite press release |title=MEPs: Hungary can no longer be considered a full democracy |date=15 September 2022 |publisher=] |url=https://www.europarl.europa.eu/news/en/press-room/20220909IPR40137/meps-hungary-can-no-longer-be-considered-a-full-democracy |ref=20220909IPR40137 |access-date=25 March 2023 |url-status=live |archive-url=https://web.archive.org/web/20220915103936/https://www.europarl.europa.eu/news/en/press-room/20220909IPR40137/meps-hungary-can-no-longer-be-considered-a-full-democracy |archive-date=15 September 2022}}</ref> Electoral reform campaigners have argued that the use of FPP in ] was a contributory factor in the country adopting the ] system after the ] in that country.<ref>{{Cite web|last=Cowen|first=Doug|title=The Graveyard of First Past the Post|url=https://www.electoral-reform.org.uk/the-graveyard-of-first-past-the-post/|access-date=4 July 2020|website=Electoral Reform Society|archive-date=4 July 2020|archive-url=https://web.archive.org/web/20200704094624/https://www.electoral-reform.org.uk/the-graveyard-of-first-past-the-post/|url-status=live}}</ref><ref>{{Cite web|last=Winter|first=Owen|date=25 August 2016|title=How a Broken Voting System Gave South Africa Apartheid in 1948|url=https://www.huffingtonpost.co.uk/owen-winter/south-africa-apartheid_b_11662272.html|access-date=4 July 2020|website=Huffington Post|archive-date=18 March 2021|archive-url=https://web.archive.org/web/20210318014711/https://www.huffingtonpost.co.uk/owen-winter/south-africa-apartheid_b_11662272.html|url-status=live}}</ref> Leblang and Chan found that a country's electoral system is the most important predictor of a country's involvement in war, according to three different measures: (1) when a country was the first to enter a war; (2) when it joined a multinational coalition in an ongoing war; and (3) how long it stayed in a war after becoming a party to it.<ref>{{Cite journal|last1=Leblang |first1=D.|last2=Chan|first2=S.|date=2003|title=Explaining Wars Fought By Established Democracies: Do Institutional Constraints Matter?|journal=Political Research Quarterly|page=56-24: 385–400}}</ref><ref name="PR and Conflict">{{Cite web|title=PR and Conflict|url=https://www.makevotesmatter.org.uk/conflict|access-date=27 June 2020|website=Make Votes Matter|archive-date=31 July 2020|archive-url=https://web.archive.org/web/20200731155640/https://www.makevotesmatter.org.uk/conflict|url-status=live}}</ref> When the people are fairly represented in parliament, more of those groups who may object to any potential war have access to the political power necessary to prevent it. In a proportional democracy, war and other major decisions generally requires the consent of the majority.<ref name="PR and Conflict" /><ref>{{Cite web|date=19 November 2017|title=What the Evidence Says|url=https://fairvotingbc.com/join-the-campaign-for-fair-voting/why-voting-reform/what-the-evidence-says/|access-date=27 June 2020|website=Fair Voting BC|archive-date=29 June 2020|archive-url=https://web.archive.org/web/20200629185607/https://fairvotingbc.com/join-the-campaign-for-fair-voting/why-voting-reform/what-the-evidence-says/|url-status=live}}</ref><ref>{{Cite web|date=3 May 2010|title=Democracy: we've never had it so bad|url=https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|access-date=27 June 2020|website=The Guardian|archive-date=22 May 2024|archive-url=https://web.archive.org/web/20240522102019/https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|url-status=live}}</ref> The British human rights campaigner ], and others, have argued that Britain entered the Iraq War primarily because of the political effects of FPP and that proportional representation would have prevented Britain's involvement in the war.<ref>{{Cite web|last=Tatchell|first=Peter|date=3 May 2010|title=Democracy: we've never had it so bad|url=https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|access-date=26 June 2020|website=The Guardian|archive-date=22 May 2024|archive-url=https://web.archive.org/web/20240522102019/https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|url-status=live}}</ref><ref>{{Cite web|last=Barnett|first=Anthony|title=Will Labour's next leader finally break with first-past-the-post?|url=https://labourlist.org/2020/01/will-labours-next-leader-finally-break-with-first-past-the-post/|access-date=5 July 2020|website=Labourlist.org|date=10 January 2020|archive-date=5 July 2020|archive-url=https://web.archive.org/web/20200705132235/https://labourlist.org/2020/01/will-labours-next-leader-finally-break-with-first-past-the-post/|url-status=live}}</ref><ref>{{Cite web|last=Root|first=Tim|date=30 September 2019|title=Making government accountable to the people|url=https://leftfootforward.org/2019/09/making-government-accountable-to-the-people/|access-date=5 July 2020|website=Left Foot Forward|archive-date=31 July 2020|archive-url=https://web.archive.org/web/20200731180947/https://leftfootforward.org/2019/09/making-government-accountable-to-the-people/|url-status=live}}</ref>
However, other voting systems, notably the ], can also create politicians who are relatively immune from electoral pressure (especially when using a closed-list).{{citation needed|date=July 2020}}


===Tactical voting=== ===Tactical voting===
{{Main|Tactical voting}} {{Main|Strategic voting}}
To a greater extent than many others, the first-past-the-post method encourages "tactical voting". Voters have an incentive to vote for a candidate who they predict is more likely to win, as opposed to their preferred candidate who may be unlikely to win and for whom a vote could be considered as ]. To a greater extent than many others, the first-past-the-post method encourages "tactical voting". Voters have an incentive to vote for a candidate who they predict is more likely to win, as opposed to their preferred candidate who may be unlikely to win and for whom a vote could be considered as ]. FPP wastes fewer votes when it is used in two-party contests. But waste of votes and minority governments are more likely when large groups of voters vote for three, four or more parties as in Canadian elections. Canada uses FPP and only two of the last seven federal Canadian elections (] and ]) produced single-party majority governments. In none of them did the leading party receive a majority of the votes.


The position is sometimes summarised, in an extreme form, as "all votes for anyone other than the runner-up are votes for the winner."<ref>{{Cite web |last=Begany |first=Brent |date=2016-06-30 |title=The 2016 Election Proves The Need For Voting Reform |url=https://policyinterns.com/2016/06/30/the-2016-election-proves-the-need-for-voting-reform/ |access-date=2019-10-22 |website=Policy Interns |language=en}}</ref> This is because votes for these other candidates deny potential support from the second-placed candidate, who might otherwise have won. Following the extremely close ], some supporters of ] candidate ] believed one reason he lost to ] ] is that a portion of the electorate (2.7%) voted for ] of the ], and exit polls indicated that more of them would have preferred Gore (45%) to Bush (27%).<ref>{{Cite news |last=Rosenbaum |first=David E. |date=24 February 2004 |title=THE 2004 CAMPAIGN: THE INDEPENDENT; Relax, Nader Advises Alarmed Democrats, but the 2000 Math Counsels Otherwise |work=The New York Times |url=https://query.nytimes.com/gst/fullpage.html?res=9B03E4D6173CF937A15751C0A9629C8B63}}</ref> This election was ultimately determined by the ], where Bush prevailed over Gore by a margin of only 537 votes (0.009%), which was far exceeded by the 97488 (1.635%) votes cast for Nader in that state. The position is sometimes summarized, in an extreme form, as "all votes for anyone other than the runner-up are votes for the winner."<ref>{{Cite web |last=Begany |first=Brent |date=2016-06-30 |title=The 2016 Election Proves The Need For Voting Reform |url=https://policyinterns.com/2016/06/30/the-2016-election-proves-the-need-for-voting-reform/ |access-date=2019-10-22 |website=Policy Interns |language=en |archive-date=22 October 2019 |archive-url=https://web.archive.org/web/20191022182755/https://policyinterns.com/2016/06/30/the-2016-election-proves-the-need-for-voting-reform/ |url-status=live }}</ref> This is because votes for these other candidates deny potential support from the second-placed candidate, who might otherwise have won. Following the extremely close ], some supporters of ] candidate ] believed one reason he lost to ] ] is that a portion of the electorate (2.7%) voted for ] of the ], and exit polls indicated that more of them would have preferred Gore (45%) to Bush (27%).<ref>{{Cite news |last=Rosenbaum |first=David E. |date=24 February 2004 |title=THE 2004 CAMPAIGN: THE INDEPENDENT; Relax, Nader Advises Alarmed Democrats, but the 2000 Math Counsels Otherwise |work=The New York Times |url=https://query.nytimes.com/gst/fullpage.html?res=9B03E4D6173CF937A15751C0A9629C8B63 |access-date=7 February 2017 |archive-date=19 September 2008 |archive-url=https://web.archive.org/web/20080919015320/http://query.nytimes.com/gst/fullpage.html?res=9B03E4D6173CF937A15751C0A9629C8B63 |url-status=live }}</ref> The election was ultimately determined by the ], where Bush prevailed over Gore by a margin of only 537 votes (0.009%), which was far exceeded by the 97488 (1.635%) votes cast for Nader in that state.


In ], there has been a tendency for ] voters to support ] candidates. This phenomenon is responsible for some Popular victories, even though the ] have the most voters on the island, and is so widely recognised that Puerto Ricans sometimes call the Independentistas who vote for the Populares "melons", because that fruit is green on the outside but red on the inside (in reference to the party colors). In ], there has been a tendency for ] voters to support ] candidates. This phenomenon is responsible for some Popular victories, even though the ] have the most voters on the island, and is so widely recognised that Puerto Ricans sometimes call the Independentistas who vote for the Populares "melons", because that fruit is green on the outside but red on the inside (in reference to the party colors).
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* Substantial power is given to the media, because some voters will believe its assertions as to who the leading contenders are likely to be. Even voters who distrust the media will know that others ''do'' believe the media, and therefore those candidates who receive the most media attention will probably be the most popular; * Substantial power is given to the media, because some voters will believe its assertions as to who the leading contenders are likely to be. Even voters who distrust the media will know that others ''do'' believe the media, and therefore those candidates who receive the most media attention will probably be the most popular;
* A new candidate with no track record, who might otherwise be supported by the majority of voters, may be considered unlikely to be one of the top two, and thus lose votes to tactical voting; * A new candidate with no track record, who might otherwise be supported by the majority of voters, may be considered unlikely to be one of the top two, and thus lose votes to tactical voting;
* The method may promote votes ''against'' as opposed to votes ''for''. For example, in the UK (and only in the ] region), entire campaigns have been organised with the aim of voting ''against'' the ] by voting ], ] in ] and ], and since 2015 the ] in ], depending on which is seen as best placed to win in each locality. Such behaviour is difficult to measure objectively. * The method may promote votes ''against'' as opposed to votes ''for''. For example, in the UK (and only in the ] region), entire campaigns have been organised with the aim of voting ''against'' the ] by voting ], ] in ] and ], and since 2015 the ] in ], depending on which is seen as best placed to win in each locality. Such behavior is difficult to measure objectively.


Proponents of other voting methods in ]s argue that these would reduce the need for tactical voting and reduce the ]. Examples include preferential voting systems, such as ], as well as the ] of runoffs and less tested methods such as ] and ]. Proponents of other voting methods in ]s argue that these would reduce the need for tactical voting and reduce the ]. Examples include preferential voting systems, such as ], as well as the ] of runoffs and less tested methods such as ] and ]s.
]s are seen as those cast for losing candidates, and for winning candidates in excess of the number required for victory. For example, in the ], 52% of votes were cast for losing candidates and 18% were excess votes—a total of 70% "wasted" votes. On this basis a large majority of votes may play no part in determining the outcome. This winner-takes-all system may be one of the reasons why "voter participation tends to be lower in countries with FPP than elsewhere."<ref>{{Cite book|last=Drogus|first=Carol Ann|url=https://archive.org/details/introducingcompa00drog/page/257|title=Introducing comparative politics: concepts and cases in context|publisher=CQ Press|year=2008|isbn=978-0-87289-343-6|pages=|url-access=registration}}</ref>


===Geography===
===Effect on political parties and society===
The effect of a system based on plurality voting spread over many separate districts is that the larger parties, and parties with more geographically concentrated support, gain a disproportionately large share of seats, while smaller parties with more evenly distributed support gain a disproportionately small share. This is because in doing this they win many seats and do not 'waste' many votes in other areas. As voting patterns are similar in about two-thirds of the districts, it is more likely that a single party will hold a majority of legislative seats under FPP than happens in a proportional system, and under FPP it is rare to elect a majority government that actually has the support of a majority of voters. Because FPP permits many ]s, an election under FPP is more easily gerrymandered. Through ], electoral areas are designed deliberately to unfairly increase the number of seats won by one party by redrawing the map such that one party has a small number of districts in which it has an overwhelming majority of votes (whether due to policy, demographics which tend to favor one party, or other reasons), and many districts where it is at a smaller disadvantage.{{citation needed|date=June 2020}}


The British ] (ERS) says that regional parties benefit from this system. "With a geographical base, parties that are small UK-wide can still do very well".<ref name="First Past the Post">{{Cite web |title=First Past the Post |url=https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |access-date=2019-12-16 |website=electoral-reform.org.uk |language=en-US |archive-date=13 December 2019 |archive-url=https://web.archive.org/web/20191213064535/https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |url-status=live }}</ref>
] is an idea in ] which says that constituencies that use first-past-the-post methods will lead to ]s, given enough time. Economist ] explains:
{{Quote|The main reason for America's majoritarian character is the electoral system for Congress. Members of Congress are elected in single-member districts according to the "first-past-the-post" (FPTP) principle, meaning that the candidate with the plurality of votes is the winner of the congressional seat. The losing party or parties win no representation at all. The first-past-the-post election tends to produce a small number of major parties, perhaps just two, a principle known in political science as ]. Smaller parties are trampled in first-past-the-post elections.|from Sachs's ''The Price of Civilization'', 2011<ref name="twsM18xxuy">{{Cite book |last=Sachs |first=Jeffrey |title=The Price of Civilization |date=2011 |publisher=Random House |isbn=978-1-4000-6841-8 |location=New York |page=107}}</ref>}}


On the other hand, minor parties that do not concentrate their vote usually end up getting a much lower proportion of seats than votes, as they lose most of the seats they contest and 'waste' most of their votes.<ref name="electoral-reform1">{{Cite web |title=First Past the Post |url=https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |access-date=2019-12-05 |website=electoral-reform.org.uk |language=en-US |archive-date=13 December 2019 |archive-url=https://web.archive.org/web/20191213064535/https://www.electoral-reform.org.uk/voting-systems/types-of-voting-system/first-past-the-post/ |url-status=live }}</ref>
However, most countries with first-past-the-post elections have multiparty legislatures (albeit with two parties larger than the others), the United States being the major exception.<ref>{{Cite journal |last1=Dunleavy |first1=Patrick |last2=Diwakar |first2=Rekha |year=2013 |title=Analysing multiparty competition in plurality rule elections |url=http://eprints.lse.ac.uk/38452/1/Dunleavy_Analysing%20multiparty_2014_author.pdf |journal=Party Politics |volume=19 |issue=6 |pages=855–886 |doi=10.1177/1354068811411026|s2cid=18840573 }}</ref>


The ERS also says that in FPP elections using many separate districts "small parties without a geographical base find it hard to win seats".<ref name="First Past the Post" />
There is a counter-argument to Duverger's Law, that while on the national level a plurality system may encourage two parties, in the individual constituencies supermajorities will lead to the vote fracturing.<ref>{{Cite journal |last1=Dickson |first1=Eric S.|author2-link=Kenneth Scheve |last2=Scheve |first2=Kenneth |year=2010 |title=Social Identity, Electoral Institutions and the Number of Candidates |journal=British Journal of Political Science |volume=40 |issue=2 |pages=349–375 |citeseerx=10.1.1.75.155 |doi=10.1017/s0007123409990354 |jstor=40649446|s2cid=7107526 }}</ref>


] said that in the ], "the Green Party, Liberal Democrats and UKIP (minor, non-regional parties) received 11% of votes between them, yet they ''shared'' just 2% of seats", and in the ], "he same three parties received almost a quarter of all the votes cast, yet these parties ''shared'' just 1.5% of seats."<ref name=":0">{{Cite web |title=Make Votes Matter—Everything wrong with First Past the Post—Proportional Representation |url=https://www.makevotesmatter.org.uk/first-past-the-post |access-date=2019-12-16 |website=Make Votes Matter |language=en-GB |archive-date=2 November 2019 |archive-url=https://web.archive.org/web/20191102013320/https://www.makevotesmatter.org.uk/first-past-the-post |url-status=live }}</ref>
It has been suggested that the distortions in geographical representation provide incentives for parties to ignore the interests of areas in which they are too weak to stand much chance of gaining representation, leading to governments that do not govern in the national interest. Further, during election campaigns the campaigning activity of parties tends to focus on ]s where there is a prospect of a change in representation, leaving safer areas excluded from participation in an active campaign.<ref>{{Cite web |date=2011-01-04 |title=First Past the Post is a 'broken voting system' |url=https://www.ippr.org/news-and-media/press-releases/first-past-the-post-is-a-broken-voting-system |access-date=15 November 2017 |website=www.ippr.org |publisher=Institute for Public Policy Research}}</ref> Political parties operate by targeting districts, directing their activists and policy proposals toward those areas considered to be marginal, where each additional vote has more value.<ref>{{Cite web |last=Terry |first=Chris |date=2013-08-28 |title=In Britain's first past the post electoral system, some votes are worth 22 times more than others |url=http://www.democraticaudit.com/2013/08/28/in-britains-first-past-the-post-electoral-system-some-votes-are-worth-22-times-more-than-others/ |access-date=15 November 2017 |website=www.democraticaudit.com |publisher=London School of Economics}}</ref><ref>{{Cite web |last=Galvin |first=Ray |title=What is a marginal seat? |url=http://www.justsolutions.eu/marginals/startmarginals.html |access-date=15 November 2017 |website=www.justsolutions.eu}}</ref><ref name="electoral-reform1" />


According to Make Votes Matter, in the 2015 UK general election ] came in third in terms of number of votes (3.9 million/12.6%), but gained only one seat in Parliament, resulting in one seat per 3.9 million votes. The Conservatives on the other hand received one seat per 34,000 votes.<ref name=":0" />
==== Smaller parties may reduce the success of the largest similar party ====
Under first-past-the-post, a small party may draw votes and seats away from a larger party that it is ''more'' similar to, and therefore give an advantage to one it is ''less'' similar to. For example, in the ], the left-leaning ] drew more votes from the left-leaning ] than his opponent, leading to ] for the Democrats.


The winner-takes-all nature of FPP leads to distorted patterns of representation, since it exaggerates the correlation between party support and geography.
==== Suppression of political diversity ====
According to the political pressure group ], FPTP creates a powerful electoral incentive for large parties to target similar segments of voters with similar policies. The effect of this reduces political diversity in a country because the larger parties are incentivised to coalesce around similar policies.<ref>{{Cite web|title=First Past the Post|url=https://www.makevotesmatter.org.uk/first-past-the-post|access-date=26 June 2020|website=Make Votes Matter}}</ref> The ] describes India's use of FPTP as a "legacy of British colonialism".<ref>{{Cite web|title=India - First Past the Post on a Grand Scale|url=https://aceproject.org/main/english/es/esy_in.htm|access-date=25 June 2020|website=ACE Electoral Knowledge Network}}</ref>


For example, in the UK the ] represents most of the rural seats in England, and most of the south of England, while the ] represents most of the English cities and most of the north of England.<ref>{{Cite journal |title=Divided by Values: Jeremy Corbyn, the Labour Party and England's 'North-South Divide' |last1=Beech |first1=Matt |date=2020-07-03 |url=https://journals.openedition.org/rfcb/5456 |last2=Hickson |first2=Kevin|journal=Revue Française de Civilisation Britannique |volume=XXV |issue=2 |doi=10.4000/rfcb.5456 |s2cid=198655613 |doi-access=free }}</ref> This pattern hides the large number of votes for the non-dominant party. Parties can find themselves without elected politicians in significant parts of the country, heightening feelings of regionalism. Party supporters (who may nevertheless be a significant minority) in those sections of the country are unrepresented.
==== May abet extreme politics ====
] published a report in April 2019 stating that, " FPTP can ... abet ], since should a radical faction gain control of one of the major political parties, FPTP works to preserve that party's position. ...This is because the psychological effect of the plurality system disincentivises a major party's supporters from voting for a minor party in protest at its policies, since to do so would likely only help the major party's main rival. Rather than curtailing extreme voices, FPTP today empowers the (relatively) extreme voices of the Labour and Conservative party memberships."<ref>{{Cite news|last=Peter Walker Political|date=22 April 2019|title=First past the post abets extreme politics, says thinktank|work=The Guardian|url=https://www.theguardian.com/politics/2019/apr/23/first-past-the-post-abets-extreme-politics-says-thinktank}}</ref><ref>{{Cite web|title=The Electoral System and British Politics|url=https://consoc.org.uk/publications/the-electoral-system-and-british-politics/|website=consoc.org.uk}}</ref>


In the 2019 Canadian federal election ] won 98% of the seats in Alberta and Saskatchewan with only 68% of the vote. The lack of non-Conservative representation gives the appearance of greater Conservative support than actually exists.<ref>{{Cite web |title=First Past the Post |url=http://www.conservativeelectoralreform.org/support-reform/first-past-the-post/ |url-status=dead |archive-url=https://web.archive.org/web/20171115214736/http://www.conservativeelectoralreform.org/support-reform/first-past-the-post/ |archive-date=15 November 2017 |access-date=15 November 2017 |website=conservativeelectoralreform.org |publisher=Conservative Action for Electoral Reform}}</ref> Similarly, in Canada's 2021 elections, the Conservative Party won 88% of the seats in Alberta with only 55% of the vote, and won 100% of the seats in Saskatchewan with only 59% of the vote.<ref>{{cite web |url=https://enr.elections.ca/Provinces.aspx |title=Elections Canada – Results by Province(s) |work=2021 Elections Canada – Provinces |publisher=Elections Canada |date=2020-09-21 |access-date=2021-11-04 |archive-date=9 December 2022 |archive-url=https://web.archive.org/web/20221209014337/https://enr.elections.ca/Provinces.aspx |url-status=live }}</ref>
Electoral reform campaigners have argued that the use of FPTP in ] was a contributory factor in the country adopting the ] system after the ] in that country.<ref>{{Cite web|last=Cowen|first=Doug|title=The Graveyard of First Past the Post|url=https://www.electoral-reform.org.uk/the-graveyard-of-first-past-the-post/|access-date=4 July 2020|website=Electoral Reform Society}}</ref><ref>{{Cite web|last=Winter|first=Owen|date=25 August 2016|title=How a Broken Voting System Gave South Africa Apartheid in 1948|url=https://www.huffingtonpost.co.uk/owen-winter/south-africa-apartheid_b_11662272.html|access-date=4 July 2020|website=Huffington Post}}</ref>


First-past-the-post within geographical areas tends to deliver (particularly to larger parties) a significant number of ]s, where a representative is sheltered from any but the most dramatic change in voting behavior. In the UK, the Electoral Reform Society estimates that more than half the seats can be considered as safe.<ref>{{Cite web|date=2010-04-07|title=General Election 2010: Safe and marginal seats|url=https://www.theguardian.com/news/datablog/2010/apr/07/election-safe-seats-electoral-reform|access-date=15 November 2017|website=The Guardian|archive-date=3 March 2016|archive-url=https://web.archive.org/web/20160303235530/http://www.theguardian.com/news/datablog/2010/apr/07/election-safe-seats-electoral-reform|url-status=live}}</ref> It has been claimed that members involved in the 2009 ] were significantly more likely to hold a safe seat.<ref>{{Cite web|last=Wickham|first=Alex|title="Safe seats" almost guarantee corruption|url=http://www.thecommentator.com/article/3678/_safe_seats_almost_guarantee_corruption|access-date=15 November 2017|website=thecommentator.com|archive-date=15 April 2021|archive-url=https://web.archive.org/web/20210415082539/http://www.thecommentator.com/article/3678/_safe_seats_almost_guarantee_corruption|url-status=dead}}</ref><ref>{{Cite web|title=FactCheck: expenses and safe seats|url=http://www.channel4.com/news/articles/uk/factcheck+expenses+and+safe+seats/3388597.html|access-date=15 November 2017|website=channel4.com|publisher=Channel 4|archive-date=8 May 2021|archive-url=https://web.archive.org/web/20210508102457/http://www.channel4.com/news/articles/uk/factcheck+expenses+and+safe+seats/3388597.html|url-status=live}}</ref>
==== Likelihood of involvement in war ====
Leblang and Chan found that a country's electoral system is the most important predictor of a country's involvement in war, according to three different measures: (1) when a country was the first to enter a war; (2) when it joined a multinational coalition in an ongoing war; and (3) how long it stayed in a war after becoming a party to it.<ref>{{Cite journal|last=Leblang, D., & Chan, S.|date=2003|title=Explaining Wars Fought By Established Democracies: Do Institutional Constraints Matter?|journal=Political Research Quarterly|page=56-24: 385–400}}</ref><ref name="PR and Conflict">{{Cite web|title=PR and Conflict|url=https://www.makevotesmatter.org.uk/conflict|access-date=27 June 2020|website=Make Votes Matter}}</ref>


==History==
When the people are fairly represented in parliament, more of those groups who may object to any potential war have access to the political power necessary to prevent it. In a proportional democracy, war and other major decisions generally requires the consent of the majority.<ref name="PR and Conflict" /><ref>{{Cite web|date=19 November 2017|title=What the Evidence Says|url=https://fairvotingbc.com/join-the-campaign-for-fair-voting/why-voting-reform/what-the-evidence-says/|access-date=27 June 2020|website=Fair Voting BC}}</ref><ref>{{Cite web|date=3 May 2010|title=Democracy: we've never had it so bad|url=https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|access-date=27 June 2020|website=The Guardian}}</ref>
The ] originated in the Middle Ages as an assembly representing the gentry of the counties and cities of the Kingdom, each of which elected either one or two members of parliament (MPs) by ]. Starting in the 19th century, ] advocates pushed to replace these multi-member constituencies with single-member districts.{{Cn|date=September 2024}} Elections to the Canadian ] have always been conducted with FPP.{{Cn|date=September 2024}}


The ] broke away from British rule in the late 18th century, and its constitution provides for an electoral college to elect its president. Despite original intentions to the contrary, by the mid-19th century this college had transformed into a ''de facto'' use of FPP for each state's presidential election. This further morphed through the introduction of the ], which made American elections into a ] in practice.
The British human rights campaigner ], and others, have argued that Britain entered the Iraq War primarily because of the political effects of FPTP and that proportional representation would have prevented Britain's involvement in the war.<ref>{{Cite web|last=Tatchell|first=Peter|date=3 May 2010|title=Democracy: we've never had it so bad|url=https://www.theguardian.com/commentisfree/2010/may/03/democracy-first-past-the-post|access-date=26 June 2020|website=The Guardian}}</ref><ref>{{Cite web|last=Barnett|first=Anthony|title=Will Labour's next leader finally break with first-past-the-post?|url=https://labourlist.org/2020/01/will-labours-next-leader-finally-break-with-first-past-the-post/|access-date=5 July 2020|website=Labourlist.org}}</ref><ref>{{Cite web|last=Root|first=Tim|date=30 September 2019|title=Making government accountable to the people|url=https://leftfootforward.org/2019/09/making-government-accountable-to-the-people/|access-date=5 July 2020|website=Left Foot Forward}}</ref>


===Criticism and replacement===
=== Manipulation ===
{{multiple image
| direction = vertical
| width = 250
| footer = People campaigning against first-past-the-post and in favour of proportional representation
| image1 = Guelph Rally on Electoral Reform - National Day of Action for Electoral Reform - 11 Feb 2017 - 04.jpg
| image2 = Make Votes Matter ! No to FPTP. Yes to PR. (51868539320).jpg
}}
Non-plurality voting systems have been devised since at least 1299, when ] came up with both the Condorcet and ] methods, which were respectively reinvented in the 18th century by the ] and ]. More serious investigation into electoral systems came in the late 18th century, when several thinkers independently proposed systems of ] to elect legislatures. The ] in particular was invented in 1819 by ], and first used in a public election in 1840 by his son ] for the ] in Australia. STV saw its first national use in Denmark in 1855, and was reinvented several times in the 19th century.


The Proportional Representation Society was founded in England in 1884 and began campaigning. STV was used to elect the British House of Commons's ] between 1918 and their abolition in 1950.{{Cn|date=September 2024}}
==== Gerrymandering ====
{{Main|Gerrymandering}}


Many countries which use FPP have active campaigns to switch to proportional representation (e.g. UK<ref>{{Cite web |title=What We Stand For |url=https://www.electoral-reform.org.uk/who-we-are/what-we-stand-for/ |website=electoral-reform.org.uk |access-date=25 June 2020 |archive-date=26 June 2020 |archive-url=https://web.archive.org/web/20200626022218/https://www.electoral-reform.org.uk/who-we-are/what-we-stand-for/ |url-status=live }}</ref> and Canada<ref>{{Cite web |title=Home |url=https://www.fairvote.ca/ |website=Fair Vote Canada |access-date=25 June 2020 |archive-date=1 July 2020 |archive-url=https://web.archive.org/web/20200701200741/https://www.fairvote.ca/ |url-status=live }}</ref>). Most modern democracies use some form of proportional representation.<ref>{{cite web |title=Electoral Systems around the World |url=https://www.fairvote.org/research_electoralsystems_world |website=FairVote.org |access-date=18 July 2020 |archive-date=11 September 2021 |archive-url=https://web.archive.org/web/20210911132640/https://www.fairvote.org/research_electoralsystems_world |url-status=dead }}</ref><ref>{{Cite web |title=Labour Campaign for Electoral Reform – About LCER |url=https://www.labourcampaignforelectoralreform.org.uk/About-LCER |website=labourcampaignforelectoralreform.org.uk |access-date=25 June 2020 |archive-date=11 August 2021 |archive-url=https://web.archive.org/web/20210811033648/https://www.labourcampaignforelectoralreform.org.uk/About-LCER |url-status=dead }}</ref>
Because FPTP permits many ]s, an election under FPTP is more easily gerrymandered. Through ], electoral areas are designed deliberately to unfairly increase the number of seats won by one party by redrawing the map such that one party has a small number of districts in which it has an overwhelming majority of votes (whether due to policy, demographics which tend to favour one party, or other reasons), and many districts where it is at a smaller disadvantage.{{citation needed|date=June 2020}}


==== Manipulation charges ==== == Countries using FPP ==
The presence of ] often gives rise to suspicions that ] has taken place. A spoiler may have received incentives to run. A spoiler may also drop out at the last moment, inducing charges that dropping out had been intended from the beginning.

==Campaigns to replace FPTP==

Many countries which use FPTP have active campaigns to switch to proportional representation (e.g. UK<ref>{{Cite web |title=What We Stand For |url=https://www.electoral-reform.org.uk/who-we-are/what-we-stand-for/ |website=electoral-reform.org.uk}}</ref> and Canada<ref>{{Cite web |title=Home |url=https://www.fairvote.ca/ |website=Fair Vote Canada}}</ref>). Most modern democracies use forms of ] (PR).<ref>{{cite web |title=Electoral Systems around the World |url=https://www.fairvote.org/research_electoralsystems_world |website=FairVote.org |access-date=18 July 2020}}</ref> In the case of the UK, the campaign to scrap FPTP has been ongoing since at least the 1970s.<ref>{{Cite web |title=Labour Campaign for Electoral Reform - About LCER |url=https://www.labourcampaignforelectoralreform.org.uk/About-LCER |website=labourcampaignforelectoralreform.org.uk}}</ref> However, in both these countries, reform campaigners face the obstacle of large incumbent parties who control the legislature and who are incentivised to resist any attempts to replace the FPTP system that elected them on a minority vote.

==Voting method criteria==

Scholars rate voting methods using mathematically derived ], which describe desirable features of a method. No ranked preference method can meet all the criteria, because some of them are mutually exclusive, as shown by results such as ] and the ].<ref>David Austen-Smith and Jeffrey Banks, "Monotonicity in Electoral Systems", ''American Political Science Review'', Vol 85, No 2 (Jun. 1991)</ref>

=== FPTP as a single-winner system ===
{| class="wikitable"
|+
!
!Name of criterion
!Explanation/details
|-
|{{Tick}}
|'''Majority criterion'''
|The ''']''' states that "if one candidate is preferred by a majority (more than 50%) of voters, then that candidate must win".<ref> {{webarchive|url=https://web.archive.org/web/20110228061650/http://www.fairvote.org/single-winner-voting-method-comparison-chart|date=28 February 2011}} "Majority Favorite Criterion: If a majority (more than 50%) of voters consider candidate A to be the best choice, then A should win."</ref> First-past-the-post meets this criterion (though not the converse: a candidate does not need 50% of the votes in order to win)
|-
|{{Xmark}}
|'''Mutual majority criterion'''
|The ''']''' states that "if a majority (more than 50%) of voters top-rank some k candidates, then one of those k candidates must win". First-past-the-post does not meet this criterion.<ref name="arxiv1811.06739">{{Cite journal|last1=Kondratev|first1=Aleksei Y.|last2=Nesterov|first2=Alexander S.|year=2020|title=Measuring Majority Power and Veto Power of Voting Rules|journal=Public Choice|volume=183|issue=1–2|pages=187–210|arxiv=1811.06739|doi=10.1007/s11127-019-00697-1|s2cid=53670198}}</ref>
|-
|{{Xmark}}
|'''Condorcet winner criterion'''
|The ''']''' criterion states that "if a candidate would win a ] against every other candidate, then that candidate must win the overall election". First-past-the-post does not<ref name="lse27685">Felsenthal, Dan S. (2010) . In: Assessing Alternative Voting Procedures, London School of Economics and Political Science, London, UK.</ref> meet this criterion.
|-
|{{Xmark}}
|'''Condorcet loser criterion'''
|The ''']''' criterion states that "if a candidate would lose a ] against every other candidate, then that candidate must not win the overall election". First-past-the-post does not<ref name="lse27685" /> meet this criterion.
|-
|{{Xmark}}
|'''Independence of irrelevant alternatives criterion'''
|The ''']''' criterion states that "the election outcome remains the same even if a candidate who cannot win decides to run." First-past-the-post does not meet this criterion.
|-
|{{Xmark}}
|'''Independence of clones criterion'''
|The ''']''' states that "the election outcome remains the same even if an identical candidate who is equally-preferred decides to run." First-past-the-post does not meet this criterion. This makes it vulnerable to ].
|-
|{{Tick}}
|]
|
|-
|{{Tick}}
|]
|
|-
|{{Tick}}
|]
|
|-
|{{Xmark}}
|]
|
|-
|''Not applicable''
|''']'''
| rowspan="2" |Since plurality does not allow marking later preferences on the ballot at all, it is impossible to either harm or help a favorite candidate by marking later preferences, and so it trivially passes both Later-No-Harm and Later-No-Help. However, because it forces truncation, it shares some problems with methods that merely encourage truncation by failing Later-No-Harm. Similarly, though to a lesser degree, because it doesn't allow voters to distinguish between all but one of the candidates, it shares some problems with methods which fail Later-No-Help, which encourage voters to make such distinctions dishonestly.
|-
|''Not applicable''
|]
|}

=== FPTP used in single-member constituencies to elect assemblies (SMP) ===
{| class="wikitable"
!
!Name of criterion
!Explanation/details
|-
|{{Xmark}}
|'''No majority reversal'''
|Although the majority criterion is met for each constituency vote, it is not met when adding up the total votes for a winning party in a parliament.
|-
|{{Xmark}}
|'''Proportional in theory'''
|
|-
|{{Xmark}}
|]
|
|-
|{{Tick}}
|'''Provides local representation'''
|Standard implementation of single-member plurality is based on local districts
|}

==Countries using FPTP/SMP==

=== Heads of state elected by FPTP ===
{{div col|colwidth=22em}}
*{{Flagicon|Angola}} ]
*{{Flagicon|Bosnia and Herzegovina}} ] (one for each main ethnic group)
*{{Flagicon|Cameroon}} ]
*{{Flagicon|Democratic Republic of the Congo}} ]
*{{Flagicon|Equatorial Guinea}} ]
*{{Flagicon|The Gambia}} ]
*{{Flagicon|Honduras}} ]
*{{Flagicon|Iceland}} ]
*{{Flagicon|Kiribati}} ]
*{{Flagicon|Malawi}} ]
*{{Flagicon|Mexico}} ]
*{{Flagicon|Nicaragua}} ]
*{{Flagicon|Palestine}} ]
*{{Flagicon|Panama}} ]
*{{Flagicon|Paraguay}} ]
*{{Flagicon|Philippines}} ]
*{{Flagicon|Rwanda}} ]
*{{Flagicon|Singapore}} ]
*{{Flagicon|South Korea}} ]
*{{Flagicon|Taiwan}} ] - ], from 1996
*{{Flagicon|Tanzania}} ]
*{{Flagicon|Venezuela}} ]

{{div col end}}


=== Legislatures elected exclusively by FPTP/SMP === === Legislatures elected exclusively by single-member plurality ===
The following is a list of countries currently following the first-past-the-post voting system for their national legislatures.<ref>{{Cite web |title=Countries using FPTP electoral system for national legislature |url=http://www.idea.int/esd/type.cfm?electoralSystem=FPTP |url-status=dead |archive-url=https://web.archive.org/web/20141006214357/http://www.idea.int/esd/type.cfm?electoralSystem=FPTP |archive-date=6 October 2014 |access-date=3 December 2018 |website=idea.int |df=dmy-all}}</ref><ref>{{Cite web |title=Electoral Systems |url=http://aceproject.org/epic-en/CDTable?question=ES005 |url-status=dead |archive-url=https://archive.today/2014.08.26-220250/http://aceproject.org/epic-en/CDTable?question=ES005 |archive-date=26 August 2014 |access-date=3 November 2015 |publisher=ACE Electoral Knowledge Network |df=dmy-all}}</ref> The following is a list of countries currently following the first-past-the-post voting system for their national legislatures.<ref>{{Cite web |title=Countries using FPTP electoral system for national legislature |url=http://www.idea.int/esd/type.cfm?electoralSystem=FPTP |url-status=dead |archive-url=https://web.archive.org/web/20141006214357/http://www.idea.int/esd/type.cfm?electoralSystem=FPTP |archive-date=6 October 2014 |access-date=3 December 2018 |website=idea.int}}</ref><ref>{{Cite web |title=Electoral Systems |url=http://aceproject.org/epic-en/CDTable?question=ES005 |url-status=dead |archive-url=https://archive.today/20140826220250/http://aceproject.org/epic-en/CDTable?question=ES005 |archive-date=26 August 2014 |access-date=3 November 2015 |publisher=ACE Electoral Knowledge Network}}</ref>
]


{{div col|colwidth=22em}} {{div col|colwidth=22em}}
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*{{Flagicon|Belarus}} ] *{{Flagicon|Belarus}} ]
*{{Flagicon|Belize}} ] *{{Flagicon|Belize}} ]
*{{Flagicon|Bhutan}} ] (both houses)
*{{Flagicon|Botswana}} ] *{{Flagicon|Botswana}} ]
*{{Flagicon|Canada}} ] (for the ] only) *{{Flagicon|Canada}} ] (for the ] only)
*{{Flagicon|Dominica}} ] *{{Flagicon|Dominica}} ]
*{{Flagicon|Dominican Republic}} ]
*{{Flagicon|Eritrea}} ] *{{Flagicon|Eritrea}} ]
*{{Flagicon|Eswatini}} ] *{{Flagicon|Eswatini}} ]
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*{{Flagicon|Malawi}} ] *{{Flagicon|Malawi}} ]
*{{Flagicon|Maldives}} ] *{{Flagicon|Maldives}} ]
*{{Flagicon|Micronesia}} ] *{{Flagicon|Mauritius}} ]
*{{Flagicon|Federated States of Micronesia}} ]
*{{Flagicon|Myanmar}} ] (both houses) *{{Flagicon|Myanmar}} ] (both houses)
*{{Flagicon|Nigeria}} ] (both houses) *{{Flagicon|Nigeria}} ] (both houses)
*{{Flagicon|Palau}} ] (both houses) *{{Flagicon|Palau}} ] (lower house only)
*{{Flagicon|Poland}} ] (for ] only)
*{{Flagicon|Qatar}} ] *{{Flagicon|Qatar}} ]
*{{Flagicon|Saint Kitts and Nevis}} ] *{{Flagicon|Saint Kitts and Nevis}} ]
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*{{Flagicon|Saint Vincent and the Grenadines}} ] *{{Flagicon|Saint Vincent and the Grenadines}} ]
*{{Flagicon|Samoa}} ] *{{Flagicon|Samoa}} ]
*{{Flagicon|Sierra Leone}} ]
*{{Flagicon|Solomon Islands}} ] *{{Flagicon|Solomon Islands}} ]
*{{Flagicon|Tonga}} ] *{{Flagicon|Tonga}} ]
*{{Flagicon|Trinidad and Tobago}} ] *{{Flagicon|Trinidad and Tobago}} ]
*{{Flagicon|Uganda}} ] *{{Flagicon|Uganda}} ]
*{{Flagicon|United Kingdom}} ] *{{Flagicon|United Kingdom}} ] (for the ] only)
*{{Flagicon|United States}} ] (both houses) - see footnote
*{{Flagicon|Yemen}} ] *{{Flagicon|Yemen}} ]
*{{Flagicon|Zambia}} ] *{{Flagicon|Zambia}} ]
{{div col end}}
Subnational legislatures

==== Upper house only ====
{{div col|colwidth=22em}}
*{{Flagicon|Bhutan}} ]
*{{Flagicon|Dominican Republic}} ]
*{{Flagicon|Poland}} ]
{{div col end}}

==== Varies by state ====
{{div col|colwidth=22em}}
*{{Flagicon|United States}} ] (both houses){{refn|group=footnote|name=first|Prior to the ], the US states of ] and ] completely abandoned FPTP in favor of ] or IRV. In the US, 48 of the 50 ] and the ] use FPTP-] to choose the electors of the ] (which in turn elects the president); Maine and ] use a variation where the electoral vote of each congressional district is awarded by FPTP (or by IRV in Maine beginning in 2020), and the statewide winner (using the same method used in each congressional district in the state) is awarded an additional two electoral votes. In states that employ FPTP-GT, the presidential candidate gaining the greatest number of votes wins all the state's available electors (seats), regardless of the number or share of votes won (majority vs non-majority plurality), or the difference separating the leading candidate and the first runner-up.<ref>{{Cite web|title=Electoral College Frequently Asked Questions|url=https://www.archives.gov/federal-register/electoral-college/faq.html|access-date=23 October 2015 |date=6 July 2023 |archive-date=6 December 2023 |archive-url=https://archive.today/20231206102739/https://www.archives.gov/electoral-college/faq |url-status=live |work=]}}</ref>}}
{{div col end}}

==== Subnational legislatures ====
{{div col|colwidth=22em}}
* {{Flagicon|Cook Islands}} ] (New Zealand) * {{Flagicon|Cook Islands}} ] (New Zealand)
* {{Flagicon|US Virgin Islands}} ] * {{Flagicon|US Virgin Islands}} ]
*{{Flagicon|Bermuda}} ] *{{Flagicon|Bermuda}} ]
*{{Flagicon|Cayman Islands}} ] *{{Flagicon|Cayman Islands}} ]
*{{Flagicon|British Virgin Islands}} ]
{{div col end}} {{div col end}}


=== Use of single-member plurality in mixed systems for electing legislatures ===
Footnote: Prior to the ], the US states of ] and ] completely abandoned FPTP in favor of ] or RCV. In the US, 48 of the 50 ] and the ] use FPTP to choose the electors of the ] (which in turn elects the president); Maine and ] use a variation where the electoral vote of each congressional district is awarded by FPTP, and the statewide winner is awarded an additional two electoral votes. In states that employ FPTP, the presidential candidate gaining the greatest number of votes wins all the state's available electors (seats), regardless of the number or share of votes won, or the difference separating the leading candidate and the first runner-up.<ref>{{Cite web|title=U. S. Electoral College: Frequently Asked Questions|url=https://www.archives.gov/federal-register/electoral-college/faq.html|access-date=23 October 2015}}</ref>
The following countries use single-member plurality to elect part of their national legislature, in different types of mixed systems.

=== Use of FPTP/SMP in mixed systems for electing legislatures ===
The following countries use FPTP/SMP to elect part of their national legislature, in different types of mixed systems.


{{expand list|date=January 2022}}'''Alongside block voting (fully majoritarian systems) or as part of mixed-member majoritarian systems (semi-proportional representation)''' '''Alongside block voting (fully majoritarian systems) or as part of mixed-member majoritarian systems (semi-proportional representation)'''
{{div col|colwidth=22em}} {{div col|colwidth=22em}}
*{{Flagicon|Brazil}} ] – in the ], alongside ] (alternating elections) *{{Flagicon|Brazil}} ] – in the ], alongside ] (alternating elections)
*{{Flagicon|Cote d'Ivoire}} ] – in single-member electoral districts, alongside ] *{{Flagicon|Hungary}} ] – as part is a mixed system (parallel voting with partial compensation)
*{{Flagicon|Ivory Coast}} ] – in single-member electoral districts, alongside ]
*{{Flagicon|Iran}} ] – in single-member electoral districts for ], alongside ] *{{Flagicon|Iran}} ] – in single-member electoral districts for ], alongside ]
*{{Flagicon|Marshall Islands}} ] – in single-member electoral districts, alongside ] *{{Flagicon|Marshall Islands}} ] – in single-member electoral districts, alongside ]
*{{Flagicon|Oman}} ] – in single-member electoral districts, alongside ] *{{Flagicon|Oman}} ] – in single-member electoral districts, alongside ]
*{{Flagicon|Pakistan}} ] – alongside seats distributed proportional to seats already won *{{Flagicon|Pakistan}} ] – alongside seats distributed proportional to seats already won
*{{Flagicon|Singapore}} ] – in single-member electoral districts, alongside ] *{{Flagicon|Singapore}} ] – in single-member electoral districts, alongside ]
*{{Flagicon|South Korea}} ] – as part is a mixed system (AMS and parallel voting)
*{{Flagicon|Taiwan}} ] – as part is a mixed system (parallel voting){{div col end}} *{{Flagicon|Taiwan}} ] – as part is a mixed system (parallel voting){{div col end}}


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{{div col|colwidth=22em}} {{div col|colwidth=22em}}
*{{Flagicon|Bolivia}} ] *{{Flagicon|Bolivia}} ]
*{{Flagicon|Germany}} ]
*{{Flagicon|Lesotho}} ] *{{Flagicon|Lesotho}} ]
*{{Flagicon|New Zealand}} ] *{{Flagicon|New Zealand}} ]
*{{Flagicon|South Korea}} ] – as part is a mixed system (AMS and parallel voting)
Subnational legislatures Subnational legislatures
*{{Flagicon|Scotland}} ] (United Kingdom) *{{Flagicon|Scotland}} ] (United Kingdom){{div col end}}

*{{Flagicon|Wales}} ] (United Kingdom)
=== Heads of state elected by FPP ===
Local elections
{{div col|colwidth=22em}}
*<!-- no flag --> ] (United Kingdom; not a legislature)
*{{Flagicon|Angola}} ] (] for the presidential and legislative elections)
*{{Flagicon|South Africa}} Certain municipalities in ]
*{{Flagicon|Bosnia and Herzegovina}} ] (one for each main ethnic group)
*{{Flagicon|Cameroon}} ]
*{{Flagicon|Democratic Republic of the Congo}} ]
*{{Flagicon|Equatorial Guinea}} ]
*{{Flagicon|The Gambia}} ]
*{{Flagicon|Guyana}} ] (] for the presidential and legislative elections)
*{{Flagicon|Honduras}} ]
*{{Flagicon|Iceland}} ]
*{{Flagicon|Kiribati}} ]
*{{Flagicon|Malawi}} ]
*{{Flagicon|Mexico}} ]
*{{Flagicon|Nicaragua}} ]
*{{Flagicon|Nigeria}} ]
*{{Flagicon|Palestine}} ]
*{{Flagicon|Panama}} ]
*{{Flagicon|Paraguay}} ]
*{{Flagicon|Philippines}} ]
*{{Flagicon|Rwanda}} ]
*{{Flagicon|Singapore}} ]
*{{Flagicon|South Korea}} ]
*{{Flagicon|Taiwan}} ] (from 1996 ])
*{{Flagicon|Tanzania}} ]
*{{Flagicon|Venezuela}} ]

{{div col end}} {{div col end}}


===Former use=== ===Former use===


{{expand list|date=July 2016}} {{incomplete list|date=July 2016}}
* ] (The ] uses ]. Only twice used FPTP, first between 1902 and 1905 used only in the ],<ref>{{Cite book |last=Milia |first=Juan Guillermo |url=https://books.google.com/books?id=NStcCgAAQBAJ&pg=PA40 |title=El Voto. Expresión del poder ciudadano |date=2015 |publisher=Editorial Dunken |isbn=978-987-02-8472-7 |location=Buenos Aires |pages=40–41}}</ref> and the second time between 1951 and 1957 used only in the ] and ].)<ref>{{Cite web |title=Law 14,032 |url=http://www.saij.gob.ar/legislacion/ley-nacional-14032.htm?bsrc=ci |website=Sistema Argentino de Información Jurídica}}</ref> * ] (The ] uses ]. Only twice used FPTP, first between 1902 and 1905 used only in the {{ill|1904 Argentine legislative election|lt=elections of 1904|es|Elecciones legislativas de Argentina de 1904}},<ref>{{Cite book |last=Milia |first=Juan Guillermo |url=https://books.google.com/books?id=NStcCgAAQBAJ&pg=PA40 |title=El Voto. Expresión del poder ciudadano |date=2015 |publisher=Editorial Dunken |isbn=978-987-02-8472-7 |location=Buenos Aires |pages=40–41 }}{{Dead link|date=May 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> and the second time between 1951 and 1957 used only in the ] and ].)<ref>{{Cite web |title=Law 14,032 |url=http://www.saij.gob.ar/legislacion/ley-nacional-14032.htm?bsrc=ci |website=Sistema Argentino de Información Jurídica |access-date=19 October 2017 |archive-date=20 October 2017 |archive-url=https://web.archive.org/web/20171020135532/http://www.saij.gob.ar/legislacion/ley-nacional-14032.htm?bsrc=ci |url-status=live }}</ref>
* ] (replaced by ] in 1918 for both the ] and the ], with ] being introduced to the Senate in 1948) * ] (replaced by ] in 1918 for both the ] and the ], with ] being introduced to the Senate in 1948)
* ] (adopted in 1831, replaced by ] in 1899)—<ref>Encarta-encyclopedie Winkler Prins (1993–2002) s.v. "Kiesstelsel. §1.1 Federale verkiezingen". Microsoft Corporation/Het Spectrum.</ref> the ] for the ] is still elected by FPTP<ref>{{Cite web |last=News |first=Flanders |date=17 April 2019 |title=Elections 2019: The European Parliament |url=https://www.vrt.be/vrtnws/en/2019/03/20/elections-2019-the-european-parliament/ |website=vrtnws.be}}</ref> * ] (adopted in 1831, replaced by ] in 1899)—<ref name="winklerprins">{{cite encyclopedia | title=Kiesstelsel. §1.1 Federale verkiezingen | encyclopedia=Encarta-encyclopedie Winkler Prins | publisher=Microsoft Corporation/Het Spectrum | year=1993–2002}}</ref> the ] for the ] is still elected by FPTP<ref>{{cite web | url=https://www.vrt.be/vrtnws/en/2019/03/20/elections-2019-the-european-parliament/ | title=Elections 2019: The European Parliament | work=Flanders News | date=17 April 2019 | access-date=2 December 2022 | quote=The European Parliament elections in Belgium will be held on 26 May, the same day as the regional and federal elections. In the European elections there are three Belgian constituencies: the Dutch-speaking electoral college, the Francophone electoral college and the German-speaking electoral college. | archive-date=6 April 2023 | archive-url=https://web.archive.org/web/20230406012005/https://www.vrt.be/vrtnws/en/2019/03/20/elections-2019-the-european-parliament/ | url-status=live }}</ref>
* ] (replaced by ] in 1981) * ] (replaced by ] in 1981)
* ] (replaced by ] in 1920) * ] (replaced by ] in 1920)
* ] (adopted in 1995, replaced by ] in 1998) * ] (adopted in 1995, replaced by ] in 1998)
* ] (used between 1860 and 1882, and between 1892 and 1919)
* ] (replaced by ] in ]) * ] (replaced by ] in ])
* ] (replaced by ] in June 2017) * ] (replaced by ] in June 2017)
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* ] (replaced by ] in 1921) * ] (replaced by ] in 1921)
* ] (replaced by ] in 1977) * ] (replaced by ] in 1977)
* ] (replaced by ])<ref name="Upreti2010">{{Cite book |last=Bhuwan Chandra Upreti |url=https://books.google.com/books?id=TEq3D4evrO0C&pg=PA69 |title=Nepal: Transition to Democratic Republican State : 2008 Constituent Assembly |publisher=Gyan Publishing House |year=2010 |isbn=978-81-7835-774-4 |pages=69–}}</ref> * ] (replaced by ])<ref name="Upreti2010">{{Cite book |last=Bhuwan Chandra Upreti |url=https://books.google.com/books?id=TEq3D4evrO0C&pg=PA69 |title=Nepal: Transition to Democratic Republican State : 2008 Constituent Assembly |publisher=Gyan Publishing House |year=2010 |isbn=978-81-7835-774-4 |pages=69– |access-date=11 October 2016 |archive-date=22 May 2024 |archive-url=https://web.archive.org/web/20240522102013/https://books.google.com/books?id=TEq3D4evrO0C&pg=PA69#v=onepage&q&f=false |url-status=live }}</ref>
* ] (replaced by ] in 1917)<ref>Encarta-encyclopedie Winkler Prins (1993–2002) s.v. "Kiesstelsel. §1.1 Geschiedenis". Microsoft Corporation/Het Spectrum.</ref> * ] (replaced by ] in 1917)<ref>Encarta-encyclopedie Winkler Prins (1993–2002) s.v. "Kiesstelsel. §1.1 Geschiedenis". Microsoft Corporation/Het Spectrum.</ref>
* ] (replaced by ] in 1996) * ] (replaced by ] in 1996)
* ] (replaced by ] in 2002)<ref>{{Cite web |date=12 December 2003 |title=PNG voting system praised by new MP |url=http://www.abc.net.au/ra/newstories/RANewsStories_1015553.htm |archive-url=https://web.archive.org/web/20050104074304/http://www.abc.net.au/ra/newstories/RANewsStories_1015553.htm |archive-date=4 January 2005 |access-date=19 May 2015 |publisher=]}}</ref> * ] (replaced by ] in 2002)<ref>{{Cite web |date=12 December 2003 |title=PNG voting system praised by new MP |url=http://www.abc.net.au/ra/newstories/RANewsStories_1015553.htm |archive-url=https://web.archive.org/web/20050104074304/http://www.abc.net.au/ra/newstories/RANewsStories_1015553.htm |archive-date=4 January 2005 |access-date=19 May 2015 |publisher=]}}</ref>
*] (replaced by ] in 1998 for House of Representatives elections, and by ] in 1941 for Senate elections) *] (replaced by ] in 1998 for House of Representatives elections, and by ] in 1941 for Senate elections)
* ] (replaced by ])<ref>{{Cite web|title=Which European countries use proportional representation?|url=https://www.electoral-reform.org.uk/which-european-countries-use-proportional-representation/|access-date=2019-12-01|website=www.electoral-reform.org.uk|language=en-US}}</ref> * ] (replaced by ])<ref>{{Cite web|title=Which European countries use proportional representation?|url=https://www.electoral-reform.org.uk/which-european-countries-use-proportional-representation/|access-date=2019-12-01|website=electoral-reform.org.uk|language=en-US|archive-date=27 December 2019|archive-url=https://web.archive.org/web/20191227222723/https://www.electoral-reform.org.uk/which-european-countries-use-proportional-representation/|url-status=live}}</ref>
* ] (adopted in 1990, replaced by ] in 1992)<ref>{{Cite web |last1=MrdaljPolitikolog |first1=Mladen |last2=Univerzitetu |first2=Predavač na Webster |date=2020-10-08 |title=Sedam zabluda o uvođenju većinskog izbornog sistema |url=https://talas.rs/2020/10/08/sedam-zabluda-o-uvodenju-vecinskog-izbornog-sistema/ |access-date=2024-01-13 |website=Talas.rs |language=en-US |archive-date=13 January 2024 |archive-url=https://web.archive.org/web/20240113164807/https://talas.rs/2020/10/08/sedam-zabluda-o-uvodenju-vecinskog-izbornog-sistema/ |url-status=live }}</ref>
*] (replaced by ] in 1994) *] (replaced by ] in 1994)
* ] (replaced by ] in 1995) * ] (replaced by ] in 1995)
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* ] * ]
* ] * ]
* ] * ]
* ] * ]
* ] * ]
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==References== ==References==
{{Reflist}} {{Reflist}}
{{reflist|group=footnote}}


==External links== ==External links==
{{commons category}}

* from * from
* *
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* *


{{voting methods}} {{Voting systems}}
{{2011 United Kingdom Alternative Vote referendum}}

{{United Kingdom Alternative Vote referendum, 2011}}
{{Parliament of NZ}} {{Parliament of NZ}}


{{DEFAULTSORT:First-Past-The-Post}} {{DEFAULTSORT:First-Past-The-Post}}
] ]
]

Latest revision as of 01:53, 21 December 2024

Plurality voting system
This article has an unclear citation style. The references used may be made clearer with a different or consistent style of citation and footnoting. (July 2024) (Learn how and when to remove this message)
It has been suggested that this article be split into a new article titled Single-member district. (discuss) (September 2024)
A joint Politics and Economics series
Social choice and electoral systems
Single-winner methodsSingle vote - plurality methods

Condorcet methods


Positional voting


Cardinal voting

Proportional representationParty-list

Quota-remainder methods


Approval-based committees


Fractional social choice


Semi-proportional representation

Mixed systemsBy results of combination
By mechanism of combination

By ballot type

Paradoxes and pathologiesSpoiler effects

Pathological response


Strategic voting


Paradoxes of majority rule

Social and collective choiceImpossibility theorems

Positive results

icon Mathematics portal
Countries that primarily use a first-past-the-post voting system for national legislative elections

First-past-the-post voting (FPTP), also known as first-preference plurality (FPP) or single-member district plurality (SMDP)—often shortened simply to plurality—is a single-winner voting rule. Voters typically mark one candidate as their favorite, and the candidate with the largest number of first-preference marks (a plurality) is elected, regardless of whether they have over half of all votes (a majority). The name first-past-the-post is a reference to gambling on horse races (where bettors would guess which horse they thought would be first past the finishing post). In social choice, FPP is generally treated as a degenerate variant of ranked voting, where voters rank the candidates, but only the first preference matters. As a result, FPP is usually implemented with a choose-one ballot, where voters place a single bubble next to their favorite candidate.

FPP has been used to elect the British House of Commons since the Middle Ages. Throughout the 20th century, many countries that previously used FPP have abandoned it in favor of other electoral systems, including the former British colonies of Australia and New Zealand.

Most U.S. states still officially retain FPP for most elections. However, the combination of partisan primaries with the two-party system mean the country has effectively used a variation on the two-round system since the 1970s, where the first round selects two major contenders who go on to receive the overwhelming majority of votes.

A first-past-the-post ballot for a single-member district. The voter must mark one (and only one).

Example

Tennessee and its four major cities: Memphis in the far west; Nashville in the center; Chattanooga in the east; and Knoxville in the far northeast

Suppose that Tennessee is holding an election on the location of its capital. The population is concentrated around four major cities. All voters want the capital to be as close to them as possible. The options are:

  • Memphis, the largest city, but far from the others (42% of voters)
  • Nashville, near the center of the state (26% of voters)
  • Chattanooga, somewhat east (15% of voters)
  • Knoxville, far to the northeast (17% of voters)

The preferences of each region's voters are:

42% of voters
Far-West
26% of voters
Center
15% of voters
Center-East
17% of voters
Far-East
  1. Memphis
  2. Nashville
  3. Chattanooga
  4. Knoxville
  1. Nashville
  2. Chattanooga
  3. Knoxville
  4. Memphis
  1. Chattanooga
  2. Knoxville
  3. Nashville
  4. Memphis
  1. Knoxville
  2. Chattanooga
  3. Nashville
  4. Memphis


In FPTP, only the first preferences matter. As such, the votes would be counted as 42% for Memphis, 26% for Nashville, 17% for Knoxville, and 15% for Chattanooga. Since Memphis has the most votes, it would win a FPTP election, even though it is far from the center of the state and a majority of voters would prefer Nashville. Similarly, instant-runoff voting would elect Knoxville, the easternmost city. This makes the election a center squeeze. By contrast, both Condorcet methods and score voting would return Nashville (the capital of Tennessee).

Properties and effects

Table of pathological behaviors
Pathology Explanation/details
☒N Frustrated majority The frustrated majority paradox occurs when a majority of voters prefer some candidate Alice to every other candidate, but Alice still loses the election. First-past-the-post is vulnerable to this paradox because of vote-splitting.
☒N Condorcet loser paradox The Condorcet loser paradox happens when a majority of voters prefer every other candidate to A, but Alice still wins. First-past-the-post is vulnerable to this paradox because of vote-splitting.
☒N Center squeeze The center squeeze describes a type of violation of Independence of irrelevant alternatives primarily affecting voting rules in the Plurality-rule_family where the Condorcet winner is eliminated in an early round or otherwise due to a lack of first-preference support.
☒N Spoiler effect A spoiler effect is when the results of an election between A and B is affected by voters' opinions on an unrelated candidate C. First-past-the-post does not meet this criterion, which makes it vulnerable to spoilers.
☒N Cloning paradox The cloning paradox is a particular kind of spoiler effect that involves several perfect copies, or "clones", of a candidate. Candidate-cloning causes vote-splitting in FPP.
☒N Best-is-worst paradox The best-is-worst paradox occurs when an electoral system declares the same candidate to be in first and last place, depending on whether voters rank candidates from best-to-worst or worst-to-best. FPP demonstrates this pathology, because a candidate can be both the FPP winner and also the anti-plurality loser.
☒N Lesser-evil voting Lesser-evil voting occurs when voters are forced to support a "lesser of two evils" by rating them higher than their actual favorite candidate. FPP is vulnerable to this pathology.
checkY Later-no-harm Since plurality does not consider later preferences on the ballot at all, it is impossible to either harm or help a favorite candidate by marking later preferences. Thus it passes both Later-No-Harm and Later-No-Help.
checkY Later-no-help
checkY Multiple-districts paradox The multiple-districts paradox refers to a particularly egregious kind of gerrymander, when it is possible to draw a map where a candidate who loses the election nevertheless manages to win in every electoral district. This is not possible under FPP, or other positional voting methods.
checkY Perverse response Perverse response occurs when a candidate loses as a result of receiving too much support from some voters, i.e. it is possible for a candidate to lose by receiving too many votes. FPP is not affected by this pathology.
checkY No-show paradox The no-show paradox is a situation where a candidate loses as a result of having too many supporters. In other words, adding a voter who supports A over B can cause A to lose to B. FPP is not affected by this pathology.

Two-party rule

Main article: Duverger's law
A graph showing the difference between the popular vote (inner circle) and the seats won by parties (outer circle) at the 2015 UK general election

Perhaps the most striking effect of FPP is the fact that the number of a party's seats in a legislature has nothing to do with its vote count in an election, only in how those votes were geographically distributed. This has been a target of criticism for the method, many arguing that a fundamental requirement of an election system is to accurately represent the views of voters. FPP often creates "false majorities" by over-representing larger parties (giving a majority of the parliamentary/legislative seats to a party that did not receive a majority of the votes) while under-representing smaller ones. In Canada, majority governments have been formed due to one party winning a majority of the votes cast in Canada only three times since 1921: in 1940, 1958 and 1984. In the United Kingdom, 19 of the 24 general elections since 1922 have produced a single-party majority government. In all but two of them (1931 and 1935), the leading party did not take a majority of the votes across the UK.

In some cases, this can lead to a party receiving the plurality or even majority of total votes yet still failing to gain a plurality of legislative seats. This results in a situation called a majority reversal or electoral inversion. Famous examples of the second-place party (in votes nationally) winning a majority of seats include the elections in Ghana in 2012, New Zealand in 1978 and 1981, and the United Kingdom in 1951. Famous examples of the second placed party (in votes nationally) winning a plurality of seats include the elections in Canada in 2019 and 2021 as well as in Japan in 2003. Even when a party wins more than half the votes in an almost purely two-party-competition, it is possible for the runner-up to win a majority of seats. This happened in Saint Vincent and the Grenadines in 1966, 1998, and 2020 and in Belize in 1993. Even with only two parties and equally-sized constituencies, winning a majority of seats just requires receiving more than half the vote in more than half the districts—even if the other party receives all the votes cast in the other districts—so just over a quarter of the vote is theoretically enough to win a majority in the legislature. With enough candidates splitting the vote in a district, the total number of votes needed to win can be made arbitrarily small.

Two-party systems

Under first-past-the-post, a small party may draw votes and seats away from a larger party that it is more similar to, and therefore give an advantage to one it is less similar to. For example, in the 2000 United States presidential election, the left-leaning Ralph Nader drew more votes from the left-leaning Al Gore, resulting in Nader spoiling the election for the Democrats. According to the political pressure group Make Votes Matter, FPTP creates a powerful electoral incentive for large parties to target similar segments of voters with similar policies. The effect of this reduces political diversity in a country because the larger parties are incentivized to coalesce around similar policies. The ACE Electoral Knowledge Network describes India's use of FPTP as a "legacy of British colonialism".

Duverger's law is an idea in political science which says that constituencies that use first-past-the-post methods will lead to two-party systems, given enough time. Economist Jeffrey Sachs explains:

The main reason for America's majoritarian character is the electoral system for Congress. Members of Congress are elected in single-member districts according to the "first-past-the-post" (FPTP) principle, meaning that the candidate with the plurality of votes is the winner of the congressional seat. The losing party or parties win no representation at all. The first-past-the-post election tends to produce a small number of major parties, perhaps just two, a principle known in political science as Duverger's Law. Smaller parties are trampled in first-past-the-post elections.

— from Sachs's The Price of Civilization, 2011

However, most countries with first-past-the-post elections have multiparty legislatures (albeit with two parties larger than the others), the United States being the major exception. There is a counter-argument to Duverger's Law, that while on the national level a plurality system may encourage two parties, in the individual constituencies supermajorities will lead to the vote fracturing.

Strongholds, key constituencies and kingmakers

It has been suggested that the distortions in geographical representation provide incentives for parties to ignore the interests of areas in which they are too weak to stand much chance of gaining representation, leading to governments that do not govern in the national interest. Further, during election campaigns the campaigning activity of parties tends to focus on marginal seats where there is a prospect of a change in representation, leaving safer areas excluded from participation in an active campaign. Political parties operate by targeting districts, directing their activists and policy proposals toward those areas considered to be marginal, where each additional vote has more value.

This feature of FPTP has often been used by its supporters in contrast to proportional systems. In the latter, smaller parties act as 'kingmakers' in coalitions as they have greater bargaining power and therefore, arguably, their influence on policy is disproportional to their parliamentary size- this is largely avoided in FPP systems where majorities are generally achieved. FPP often produces governments which have legislative voting majorities, thus providing such governments the legislative power necessary to implement their electoral manifesto commitments during their term in office. This may be beneficial for the country in question in circumstances where the government's legislative agenda has broad public support, albeit potentially divided across party lines, or at least benefits society as a whole. However handing a legislative voting majority to a government which lacks popular support can be problematic where said government's policies favor only that fraction of the electorate that supported it, particularly if the electorate divides on tribal, religious, or urban–rural lines. There is also the perceived issue of unfair coalitions where a smaller party can form a coalition with other smaller parties and form a government, without a clear mandate as was the case in the 2009 Israeli legislative election where the leading party Kadima, was unable to form a coalition so Likud, a smaller party, managed to form a government without being the largest party. The use of proportional representation (PR) may enable smaller parties to become decisive in the country's legislature and gain leverage they would not otherwise enjoy, although this can be somewhat mitigated by a large enough electoral threshold. They argue that FPP generally reduces this possibility, except where parties have a strong regional basis. A journalist at Haaretz noted that Israel's highly proportional Knesset "affords great power to relatively small parties, forcing the government to give in to political blackmail and to reach compromises"; Tony Blair, defending FPP, argued that other systems give small parties the balance of power, and influence disproportionate to their votes.

The concept of kingmakers is adjacent to how Winston Churchill criticized the alternative vote system as "determined by the most worthless votes given for the most worthless candidates." meaning that votes for the least supported candidates may change the outcome of the election between the most supported candidates. In this case however, this is a feature of the alternative vote, since those votes would have otherwise been wasted (and in some sense this makes every vote count, as opposed to FPP), and this effect is only possible when no candidate receives an outright majority of first preference votes. it is related to kingmakers in that the lesser-known candidates may encourage their supporters to rank the other candidates a certain way. Supporters of electoral reform generally see this as a positive development, and claim that alternatives certain to FPP will encourage less negative and more positive campaigning, as candidates will have to appeal to a wider group of people. Opinions are split on whether the alternative vote (better known as instant runoff voting outside the UK) achieves this better than other systems.

Extremist parties

Supporters and opponents of FPP often argue whether FPP advantages or disadvantages extremist parties. Among single-winner systems, FPP suffers from the center squeeze phenomenon, where more moderate candidates are squeezed out by more extreme ones. However, the different types (or the absence of) of party primaries maybe strengthen or weaken this effect. In general, FPP has no mechanism that would benefit more moderate candidates and many supporters of FPP defend it electing the largest and most unified (even if more polarizing) minority over a more consensual majority supported candidate. Allowing people into parliament who did not finish first in their district was described by David Cameron as creating a "Parliament full of second-choices who no one really wanted but didn't really object to either."

However, FPP often results in strategic voting, which has prevented extreme left- and right-wing parties from gaining parliamentary seats, as opposed to proportional representation. This also implies that strategic voting is necessary to keep extremists from gaining seats, which often fails to materialize in practice for multiple reasons. In comparison, many other systems encourage voters to rank other candidates and thereby not (or at least less often to) have to strategically compromise on their first choice at the same time.

On the other hand, the Constitution Society published a report in April 2019 stating that, " FPP can ... abet extreme politics, since should a radical faction gain control of one of the major political parties, FPP works to preserve that party's position. ...This is because the psychological effect of the plurality system disincentivises a major party's supporters from voting for a minor party in protest at its policies, since to do so would likely only help the major party's main rival. Rather than curtailing extreme voices, FPP today empowers the (relatively) extreme voices of the Labour and Conservative party memberships." For example, the electoral system of Hungary, a mixed system dominated by FPP have seen Fidesz (right-wing, populist party) win 135 seats in the 2022 Hungarian parliamentary election and has remained the largest party in Hungary since 2010 by changing the electoral system to mostly use FPP instead of the previous mixed system using mostly the two-round system. Since 2010, Fidesz has implemented other anti-democratic reforms that now mean the European Parliament no longer qualifies Hungary as a full democracy. Electoral reform campaigners have argued that the use of FPP in South Africa was a contributory factor in the country adopting the apartheid system after the 1948 general election in that country. Leblang and Chan found that a country's electoral system is the most important predictor of a country's involvement in war, according to three different measures: (1) when a country was the first to enter a war; (2) when it joined a multinational coalition in an ongoing war; and (3) how long it stayed in a war after becoming a party to it. When the people are fairly represented in parliament, more of those groups who may object to any potential war have access to the political power necessary to prevent it. In a proportional democracy, war and other major decisions generally requires the consent of the majority. The British human rights campaigner Peter Tatchell, and others, have argued that Britain entered the Iraq War primarily because of the political effects of FPP and that proportional representation would have prevented Britain's involvement in the war.

Tactical voting

Main article: Strategic voting

To a greater extent than many others, the first-past-the-post method encourages "tactical voting". Voters have an incentive to vote for a candidate who they predict is more likely to win, as opposed to their preferred candidate who may be unlikely to win and for whom a vote could be considered as wasted. FPP wastes fewer votes when it is used in two-party contests. But waste of votes and minority governments are more likely when large groups of voters vote for three, four or more parties as in Canadian elections. Canada uses FPP and only two of the last seven federal Canadian elections (2011 and 2015) produced single-party majority governments. In none of them did the leading party receive a majority of the votes.

The position is sometimes summarized, in an extreme form, as "all votes for anyone other than the runner-up are votes for the winner." This is because votes for these other candidates deny potential support from the second-placed candidate, who might otherwise have won. Following the extremely close 2000 U.S. presidential election, some supporters of Democratic candidate Al Gore believed one reason he lost to Republican George W. Bush is that a portion of the electorate (2.7%) voted for Ralph Nader of the Green Party, and exit polls indicated that more of them would have preferred Gore (45%) to Bush (27%). The election was ultimately determined by the results from Florida, where Bush prevailed over Gore by a margin of only 537 votes (0.009%), which was far exceeded by the 97488 (1.635%) votes cast for Nader in that state.

In Puerto Rico, there has been a tendency for Independentista voters to support Populares candidates. This phenomenon is responsible for some Popular victories, even though the Estadistas have the most voters on the island, and is so widely recognised that Puerto Ricans sometimes call the Independentistas who vote for the Populares "melons", because that fruit is green on the outside but red on the inside (in reference to the party colors).

Because voters have to predict who the top two candidates will be, results can be significantly distorted:

  • Some voters will vote based on their view of how others will vote as well, changing their originally intended vote;
  • Substantial power is given to the media, because some voters will believe its assertions as to who the leading contenders are likely to be. Even voters who distrust the media will know that others do believe the media, and therefore those candidates who receive the most media attention will probably be the most popular;
  • A new candidate with no track record, who might otherwise be supported by the majority of voters, may be considered unlikely to be one of the top two, and thus lose votes to tactical voting;
  • The method may promote votes against as opposed to votes for. For example, in the UK (and only in the Great Britain region), entire campaigns have been organised with the aim of voting against the Conservative Party by voting Labour, Liberal Democrat in England and Wales, and since 2015 the SNP in Scotland, depending on which is seen as best placed to win in each locality. Such behavior is difficult to measure objectively.

Proponents of other voting methods in single-member districts argue that these would reduce the need for tactical voting and reduce the spoiler effect. Examples include preferential voting systems, such as instant runoff voting, as well as the two-round system of runoffs and less tested methods such as approval voting and Condorcet methods. Wasted votes are seen as those cast for losing candidates, and for winning candidates in excess of the number required for victory. For example, in the UK general election of 2005, 52% of votes were cast for losing candidates and 18% were excess votes—a total of 70% "wasted" votes. On this basis a large majority of votes may play no part in determining the outcome. This winner-takes-all system may be one of the reasons why "voter participation tends to be lower in countries with FPP than elsewhere."

Geography

The effect of a system based on plurality voting spread over many separate districts is that the larger parties, and parties with more geographically concentrated support, gain a disproportionately large share of seats, while smaller parties with more evenly distributed support gain a disproportionately small share. This is because in doing this they win many seats and do not 'waste' many votes in other areas. As voting patterns are similar in about two-thirds of the districts, it is more likely that a single party will hold a majority of legislative seats under FPP than happens in a proportional system, and under FPP it is rare to elect a majority government that actually has the support of a majority of voters. Because FPP permits many wasted votes, an election under FPP is more easily gerrymandered. Through gerrymandering, electoral areas are designed deliberately to unfairly increase the number of seats won by one party by redrawing the map such that one party has a small number of districts in which it has an overwhelming majority of votes (whether due to policy, demographics which tend to favor one party, or other reasons), and many districts where it is at a smaller disadvantage.

The British Electoral Reform Society (ERS) says that regional parties benefit from this system. "With a geographical base, parties that are small UK-wide can still do very well".

On the other hand, minor parties that do not concentrate their vote usually end up getting a much lower proportion of seats than votes, as they lose most of the seats they contest and 'waste' most of their votes.

The ERS also says that in FPP elections using many separate districts "small parties without a geographical base find it hard to win seats".

Make Votes Matter said that in the 2017 general election, "the Green Party, Liberal Democrats and UKIP (minor, non-regional parties) received 11% of votes between them, yet they shared just 2% of seats", and in the 2015 general election, "he same three parties received almost a quarter of all the votes cast, yet these parties shared just 1.5% of seats."

According to Make Votes Matter, in the 2015 UK general election UKIP came in third in terms of number of votes (3.9 million/12.6%), but gained only one seat in Parliament, resulting in one seat per 3.9 million votes. The Conservatives on the other hand received one seat per 34,000 votes.

The winner-takes-all nature of FPP leads to distorted patterns of representation, since it exaggerates the correlation between party support and geography.

For example, in the UK the Conservative Party represents most of the rural seats in England, and most of the south of England, while the Labour Party represents most of the English cities and most of the north of England. This pattern hides the large number of votes for the non-dominant party. Parties can find themselves without elected politicians in significant parts of the country, heightening feelings of regionalism. Party supporters (who may nevertheless be a significant minority) in those sections of the country are unrepresented.

In the 2019 Canadian federal election Conservatives won 98% of the seats in Alberta and Saskatchewan with only 68% of the vote. The lack of non-Conservative representation gives the appearance of greater Conservative support than actually exists. Similarly, in Canada's 2021 elections, the Conservative Party won 88% of the seats in Alberta with only 55% of the vote, and won 100% of the seats in Saskatchewan with only 59% of the vote.

First-past-the-post within geographical areas tends to deliver (particularly to larger parties) a significant number of safe seats, where a representative is sheltered from any but the most dramatic change in voting behavior. In the UK, the Electoral Reform Society estimates that more than half the seats can be considered as safe. It has been claimed that members involved in the 2009 expenses scandal were significantly more likely to hold a safe seat.

History

The House of Commons of England originated in the Middle Ages as an assembly representing the gentry of the counties and cities of the Kingdom, each of which elected either one or two members of parliament (MPs) by block plurality voting. Starting in the 19th century, electoral reform advocates pushed to replace these multi-member constituencies with single-member districts. Elections to the Canadian House of Commons have always been conducted with FPP.

The United States broke away from British rule in the late 18th century, and its constitution provides for an electoral college to elect its president. Despite original intentions to the contrary, by the mid-19th century this college had transformed into a de facto use of FPP for each state's presidential election. This further morphed through the introduction of the party primary, which made American elections into a two-round system in practice.

Criticism and replacement

People campaigning against first-past-the-post and in favour of proportional representation

Non-plurality voting systems have been devised since at least 1299, when Ramon Llull came up with both the Condorcet and Borda count methods, which were respectively reinvented in the 18th century by the Marquis de Condorcet and Jean-Charles de Borda. More serious investigation into electoral systems came in the late 18th century, when several thinkers independently proposed systems of proportional representation to elect legislatures. The single transferable vote in particular was invented in 1819 by Thomas Wright Hill, and first used in a public election in 1840 by his son Rowland for the Adelaide City Council in Australia. STV saw its first national use in Denmark in 1855, and was reinvented several times in the 19th century.

The Proportional Representation Society was founded in England in 1884 and began campaigning. STV was used to elect the British House of Commons's university constituencies between 1918 and their abolition in 1950.

Many countries which use FPP have active campaigns to switch to proportional representation (e.g. UK and Canada). Most modern democracies use some form of proportional representation.

Countries using FPP

Legislatures elected exclusively by single-member plurality

The following is a list of countries currently following the first-past-the-post voting system for their national legislatures.

Map showing countries where the lower house or unicameral national legislature is elected by FPTP (red) or mixed systems using FPTP (pink - mixed majoritarian, purple/lavender - mixed proportional/compensatory).

Upper house only

Varies by state

Subnational legislatures

Use of single-member plurality in mixed systems for electing legislatures

The following countries use single-member plurality to elect part of their national legislature, in different types of mixed systems.

Alongside block voting (fully majoritarian systems) or as part of mixed-member majoritarian systems (semi-proportional representation)

As part of mixed-member proportional (MMP) or additional member systems (AMS)

Subnational legislatures

Heads of state elected by FPP

Former use

This list is incomplete; you can help by adding missing items. (July 2016)

See also

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  1. Prior to the 2020 election, the US states of Alaska and Maine completely abandoned FPTP in favor of Instant-runoff voting or IRV. In the US, 48 of the 50 states and the District of Columbia use FPTP-GT to choose the electors of the Electoral College (which in turn elects the president); Maine and Nebraska use a variation where the electoral vote of each congressional district is awarded by FPTP (or by IRV in Maine beginning in 2020), and the statewide winner (using the same method used in each congressional district in the state) is awarded an additional two electoral votes. In states that employ FPTP-GT, the presidential candidate gaining the greatest number of votes wins all the state's available electors (seats), regardless of the number or share of votes won (majority vs non-majority plurality), or the difference separating the leading candidate and the first runner-up.

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