Parliamentary systems: Head of government is elected or nominated by and accountable to the legislature Constitutional monarchy with a ceremonial monarch Parliamentary republic with a ceremonial president Parliamentary republic with an executive president
Presidential system: Head of government (president) is popularly elected and independent of the legislature Presidential republic
Hybrid systems: Semi-presidential republic: Executive president is independent of the legislature; head of government is appointed by the president and is accountable to the legislature Assembly-independent republic: Head of government (president or directory) is elected by the legislature, but is not accountable to it
Other systems: Theocratic republic: Supreme Leader holds significant executive and legislative power Semi-constitutional monarchy: Monarch holds significant executive or legislative power Absolute monarchy: Monarch has unlimited power One-party state: Power is constitutionally linked to a single political party Military junta: Committee of military leaders controls the government; constitutional provisions are suspended Provisional government: No constitutionally defined basis to current regime Dependent territories or places without governments
Note: this chart represents the de jure systems of government, not the de facto degree of democracy.
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A presidential, strong-president, or single-executive system is a form of government in which a head of government (usually titled "president") heads an executive branch that derives its authority and legitimacy from a source that is separate from the legislative branch. The system was popularized by its inclusion in the Constitution of the United States.
This head of government is in most cases also the head of state. In a presidential system, the head of government is directly or indirectly elected by a group of citizens and is not responsible to the legislature, and the legislature cannot dismiss the president except in extraordinary cases. A presidential system contrasts with a parliamentary system, where the head of government (usually called a prime minister) derives their power from the confidence of an elected legislature, which can dismiss the prime minister with a simple majority.
Not all presidential systems use the title of president. Likewise, the title is sometimes used by other systems. It originated from a time when such a person personally presided over the governing body, as with the President of the Continental Congress in the early United States, prior to the executive function being split into a separate branch of government. It may also be used by presidents in semi-presidential systems. Heads of state of parliamentary republics, largely ceremonial in most cases, are called presidents. Dictators or leaders of one-party states, whether popularly elected or not, are also often called presidents.
The presidential system is the dominant form of government in Latin America and is also popular in Sub-Saharan Africa. By contrast, there are very few presidential republics in Europe (with Cyprus and Turkey being the only examples). In Asia, the system is used by South Korea, the Philippines, and Indonesia.
History
Development in the Americas
The presidential system has its roots in the governance of the British colonies of the 17th century in what is now the United States. The Pilgrims, permitted to govern themselves in Plymouth Colony, established a system that utilized an independent executive branch. Each year, a governor was chosen by the colonial legislature, as well as several assistants, analogous to modern day cabinets. Additional executive officials such as constables and messengers were then appointed. At the same time, the British Isles underwent a brief period of republicanism as the Protectorate, during which the Lord Protector served as an executive leader similar to a president.
The first true presidential system was developed during the United States Constitutional Convention in 1787. Drawing inspiration from the previous colonial governments, from English Common Law, and from philosophers such as John Locke and Montesquieu, the delegates developed what is now known as the presidential system. Most notably, James Wilson advocated for a unitary executive figure that would become the role of the president. The United States became the first presidential republic when the Constitution of the United States came into force in 1789, and George Washington became the first president under a presidential system.
During the 1810s and 1820s, Spanish colonies in the Americas sought independence, and several new Spanish-speaking governments emerged in Latin America. These countries modeled their constitutions after that of the United States, and the presidential system became the dominant political system in the Americas. Following several decades of monarchy, Brazil also adopted the presidential system in 1889 with Deodoro da Fonseca as its first president. Latin American presidential systems have experienced varying levels of stability, with many experiencing periods of dictatorial rule.
As a global system
Following the pattern of other Spanish colonies, the Philippines established the first presidential system in Asia in 1898, but it fell under American control due to the Spanish–American War. The presidential system was restored after the United States granted the Philippines independence in 1946.
The end of World War II established presidential systems in two countries. After the United States ended the Japanese occupation of Korea, it assisted South Korea in the formation of a presidential government. However, the early years of the South Korean presidency were marked by dictatorial control. At the same time, Indonesia declared independence from the Netherlands in 1945. While it nominally used a presidential system, it was in effect a dictatorship where the president controlled all branches of government. A true presidential system was established in 1998.
Decolonization in the 1950s and 1960s brought with it significant expansion of the presidential system. During this time, several new presidential republics were formed in Africa. Cyprus, the Maldives, and South Vietnam also adopted the presidential system following decolonization. Pakistan and Bangladesh did so as well, but they changed their governmental systems shortly afterward.
Several more countries adopted the presidential system in the final decades of the 20th century. A modified version of the presidential system was implemented in Iran following constitutional reform in 1989 in which the Supreme Leader serves as the head of state and is the absolute power in this country. In 1981, Palau achieved independence and adopted a presidential system. When the Soviet Union was dissolved in 1991, the presidential system was adopted by the new states that were created, though most of them adopted other governmental systems over the following decades.
The presidential system continues to be adopted in the 21st century. Following its independence in 2011, South Sudan adopted a presidential system. In 2018, after the 2017 Turkish constitutional referendum, Turkey adopted a presidential system.
Features
There are several characteristics that are unique to presidential systems or prominent in countries that use presidential systems. The defining aspect of presidential systems is the separation of powers that divides the executive and the legislature. Advocates of presidential systems cite the democratic nature of presidential elections, the advantages of separation of powers, the efficiency of a unitary executive, and the stability provided by fixed-terms. Opponents of presidential systems cite the potential for gridlock, the difficulty of changing leadership, and concerns that a unitary executive can give way to a dictatorship.
Separation of powers
Main article: Separation of powersThe presidential system is defined by the separation of the executive branch from other aspects of government. The head of government is elected to work alongside, but not as a part of, the legislature. There are several types of powers that are traditionally delegated to the president. Under a presidential system, the president may have the power to challenge legislation through a veto, the power to pardon crimes, authority over foreign policy, authority to command the military as the Commander-in-chief, and authority over advisors and employees of the executive branch.
Checks and balances
Separation of powers is sometimes held up as an advantage, in that each branch may scrutinize the actions of the other. This is in contrast with a parliamentary system, where the majority party in the legislature that also serves as the executive is unlikely to scrutinize its own actions. Writing about the Watergate scandal, former British MP Woodrow Wyatt said "don't think a Watergate couldn't happen here, you just wouldn't hear about it." The extent of this effect is debated. Some commentators argue that the effect is mitigated when the president's party is in power, while others note that party discipline is not as strictly enforced in presidential systems.
Another stated benefit of the separation of powers is the ability of the legislature to enforce limits on the powers of the executive. In a parliamentary system, if important legislation proposed by the incumbent prime minister and his cabinet is "voted down" by a majority of the members of parliament then it is considered a vote of no confidence. The presidential system has no such mechanism, and the legislature has little incentive to appease the president beyond saving face.
Efficiencies and inefficiencies
When an action is within the scope of a president's power, a presidential system can respond more rapidly to emerging situations than parliamentary ones. A prime minister, when taking action, needs to retain the support of the legislature, but a president is often less constrained. In Why England Slept, future U.S. president John F. Kennedy argued that British prime ministers Stanley Baldwin and Neville Chamberlain were constrained by the need to maintain the confidence of the Commons.
James Wilson, who advocated for a presidential system at the constitutional convention, maintained that a single chief executive would provide for greater public accountability than a group and thereby protect against tyranny by making it plain who was responsible for executive actions. He also submitted that a singular chief executive was necessary to ensure promptness and consistency and guard against deadlock, which could be essential in times of national emergency.
Conversely, a presidential system can produce gridlock when the president and the legislature are in opposition. This rarely happens in a parliamentary system, as the prime minister is always a member of the party in power. This gridlock is common occurrence, as the electorate often expects more rapid results than are possible from new policies and switches to a different party at the next election. Critics such as Juan Linz, argue that in such cases of gridlock, presidential systems do not offer voters the kind of accountability seen in parliamentary systems, and that this inherent political instability can cause democracies to fail, as seen in such cases as Brazil and Allende's Chile.
It is easy for either the president or the legislature to escape blame by shifting it to the other. Describing the United States, former Treasury Secretary C. Douglas Dillon said "the president blames Congress, the Congress blames the president, and the public remains confused and disgusted with government in Washington". Years before becoming president, Woodrow Wilson famously wrote "how is the schoolmaster, the nation, to know which boy needs the whipping?" Walter Bagehot said of the American system, "the executive is crippled by not getting the law it needs, and the legislature is spoiled by having to act without responsibility: the executive becomes unfit for its name, since it cannot execute what it decides on; the legislature is demoralized by liberty, by taking decisions of which others will suffer the effects".
A 2024 meta-analytical review found that presidential systems were associated with more corruption than parliamentary systems.
Presidential elections
Main article: Fixed-term electionIn a presidential system, the president is elected independently of the legislature. This may be done directly through a popular vote or indirectly such as through the electoral college used in the United States. This aspect of presidential systems is sometimes touted as more democratic, as it provides a broader mandate for the president. Once elected, a president typically remains in office until the conclusion of a term.
Fixed-terms
Presidential systems are typically understood as having a head of government elected by citizens to serve one or more fixed-terms. Fixed-terms are praised for providing a level of stability that other systems lack. Although most parliamentary governments go long periods of time without a no confidence vote, Italy, Israel, and the French Fourth Republic have all experienced difficulties maintaining stability. When parliamentary systems have multiple parties, and governments are forced to rely on coalitions, as they often do in nations that use a system of proportional representation, extremist parties can theoretically use the threat of leaving a coalition to further their agendas.
Proponents of the presidential system also argue that stability extends to the cabinets chosen under the system. In most parliamentary systems, cabinets must be drawn from within the legislative branch. Under the presidential system, cabinet members can be selected from a much larger pool of potential candidates. This allows presidents the ability to select cabinet members based as much or more on their ability and competency to lead a particular department as on their loyalty to the president, as opposed to parliamentary cabinets, which might be filled by legislators chosen for no better reason than their perceived loyalty to the prime minister. Supporters of the presidential system note that parliamentary systems are prone to disruptive "cabinet shuffles" where legislators are moved between portfolios, whereas in presidential system cabinets (such as the United States Cabinet), cabinet shuffles are unusual.
Some political scientists dispute this concept of stability, arguing that presidential systems have difficulty sustaining democratic practices and that they have slipped into authoritarianism in many of the countries in which they have been implemented. According to political scientist Fred Riggs, presidential systems have fallen into authoritarianism in nearly every country they've been attempted. The list of the world's 22 older democracies includes only two countries (Costa Rica and the United States) with presidential systems. Yale political scientist Juan Linz argues that:
The danger that zero-sum presidential elections pose is compounded by the rigidity of the president's fixed term in office. Winners and losers are sharply defined for the entire period of the presidential mandate ... losers must wait four or five years without any access to executive power and patronage. The zero-sum game in presidential regimes raises the stakes of presidential elections and inevitably exacerbates their attendant tension and polarization.
Fixed-terms in a presidential system may also be considered a check on the powers of the executive, contrasting parliamentary systems, which may allow the prime minister to call elections whenever they see fit or orchestrate their own vote of no confidence to trigger an election when they cannot get a legislative item passed. The presidential model is said to discourage this sort of opportunism, and instead forces the executive to operate within the confines of a term they cannot alter to suit their own needs.
Limited mechanisms of removal
Unlike in parliamentary systems, the legislature does not have the power to recall a president under the presidential system. However, presidential systems may have methods to remove presidents under extraordinary circumstances, such as a president committing a crime or becoming incapacitated. In some countries, presidents are subject to term limits.
The inability to remove a president early is also the subject of criticism. Even if a president is "proved to be inefficient, even if he becomes unpopular, even if his policy is unacceptable to the majority of his countrymen, he and his methods must be endured until the moment comes for a new election".
The consistency of a presidency may be seen as beneficial during times of crisis. When in a time of crisis, countries may be better off being led by a president with a fixed term than rotating premierships. Some critics, however, argue that the presidential system is weaker because it does not allow a transfer of power in the event of an emergency. Walter Bagehot argues that the ideal ruler in times of calm is different from the ideal ruler in times of crisis, criticizing the presidential system for having no mechanism to make such a change.
Head of government as head of state
In many cases, the president is elected as both the head of government and the head of state. This is in contrast to most parliamentary governments where the head of state is separate from the head of government and plays a largely symbolic role.
The president's status is sometimes the subject of criticism. Dana D. Nelson criticizes the office of the President of the United States as essentially undemocratic and characterizes presidentialism as worship of the president by citizens, which she believes undermines civic participation. British-Irish philosopher and MP Edmund Burke stated that an official should be elected based on "his unbiased opinion, his mature judgment, his enlightened conscience", and therefore should reflect on the arguments for and against certain policies and then do what he believes is best for his constituents and country as a whole, even if it means short-term backlash. Thus defenders of presidential systems hold that sometimes what is wisest may not always be the most popular decision and vice versa.
Comparative politics
The separation of the executive and the legislature is the key difference between a presidential system and a parliamentary system. The presidential system elects a head of government independently of the legislature, while in contrast, the head of government in a parliamentary system answers directly to the legislature. Presidential systems necessarily operate under the principle of structural separation of powers, while parliamentary systems do not; however, the degree of functional separation of powers exhibited in each varies – dualistic parliamentary systems such as the Netherlands, Sweden and Slovakia forbid members of the legislature from serving in the executive simultaneously, while Westminster-type parliamentary systems such as the United Kingdom require it. Heads of government under the presidential system do not depend on the approval of the legislature as they do in a parliamentary system (with the exception of mechanisms such as impeachment).
The presidential system and the parliamentary system can also be blended into a semi-presidential system. Under such a system, executive power is shared by an elected head of state (a president) and a legislature-appointed head of government (a prime minister or premier). The amount of power each figure holds may vary, and a semi-presidential system may lean closer to one system over the other. The president typically retains authority over foreign policy in a semi-presidential system. A pure presidential system may also have mechanisms that resemble those of a parliamentary system as part of checks and balances. The legislature may have oversight of some of the president's decisions through advice and consent, and mechanisms such as impeachment may allow the legislature to remove the president under drastic circumstances.
Presidentialism metrics
Presidentialism metrics allow a quantitative comparison of the strength of presidential system characteristics for individual countries. Presidentialism metrics include the presidentialism index in V-Dem Democracy indices and presidential power scores. The table below shows for individual countries the V-Dem presidentialism index, where higher values indicate higher concentration of political power in the hands of one individual.
Subnational governments
See also: State governments of the United StatesSubnational governments may be structured as presidential systems. All of the state governments in the United States use the presidential system, even though this is not constitutionally required. In these cases instead of the title of President the role has the title of Governor. On a local level, a presidential system might be organized with the office of Mayor acting as the president. Some countries without a presidential system at the national level use a form of this system at a subnational or local level. One example is Japan, where the national government uses the parliamentary system.
States with a presidential system of government
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Presidential republics without a prime minister
Angola
Argentina
Benin
Bolivia
Brazil
Chile
Colombia
Comoros
Costa Rica
Cyprus
Dominican Republic
Ecuador
El Salvador
Gambia, The
Ghana
Guatemala
Honduras
Indonesia
Liberia
Malawi
Maldives
Mexico
Nicaragua
Nigeria
Palau
Panama
Paraguay
Philippines
Seychelles
Somaliland
Turkey
Turkmenistan
United States
Uruguay
Venezuela
Zambia
Zimbabwe
Non-UN members or observers are in italics.
Presidential republics with a prime minister
The following countries have presidential systems where the post of prime minister (official title may vary) exists alongside that of the president. The president is still both the head of state and government and the prime minister's role is mostly to assist the president.
Abkhazia
Burundi
Cameroon
Central African Republic
Djibouti
Equatorial Guinea
Ivory Coast
Kenya (see Prime Cabinet Secretary)
Kyrgyzstan
Rwanda
Senegal
Sierra Leone (see Chief minister)
South Korea
Tajikistan
Tanzania
Tunisia
Uganda
Presidential system in administrative divisions
Dependencies of the United States
Special administrative regions of China
Former presidential republics
Islamic Republic of Afghanistan (2004–2021)
Armenia (1998–2013)
Azerbaijan SSR/
Azerbaijan (1990–1991, 1992–2016)
Bangladesh (1975–1991)
Republic of China (1948–1991) de facto
Cuba (1902–1959)
Estonia (1938–1940)
Georgia (1995–2004; 2005–2011)
Germany (1930–1933) de facto
Greece (1973–1974)
Haiti (1859–1957, 1957–1986)
Katanga (1960–1963)
Kirghiz SSR/ Kyrgyzstan (1990–1993)
Mali (1960–1992)
Mauritania (1960–1978)
Niger (1960–1974, 1989–1993)
Pakistan (1958–1973,1978–1985, 2001–2002)
Poland (1935–1939)
RSFSR/
Russia (1991–1992) de facto
South Korea (1963–1972)
South Vietnam (1955–1975)
Syria (1963–2024)
Tajik SSR (1990–1991)
Togo (1960-2024)
Turkmen SSR (1990–1991)
Ukraine (1995–1996)
Uzbek SSR (1990–1991)
Notes
- President and legislature are elected directly by the people via double simultaneous vote.
- President and legislature are elected directly by the people via double simultaneous vote.
- President and legislature are elected directly by the people via double simultaneous vote.
- as the Armenian SSR parliamentary in 1990–1991, Soviet age and after independence, it was a semi-presidential republic in 1991–1998, a presidential republic in 1998–2013, a semi-presidential republic in 2013–2018 and a parliamentary republic in 2018.
- as the Azerbaijan SSR, it was a presidential republic in 1990–1991, a semi-presidential republic after independence in 1991–1992, a presidential republic in 1992–2016 and a semi-presidential republic in 2016. Under a hereditary dictatorship since 1993
- Parliamentary in 1972–1975, presidential in 1975–1991, and parliamentary since 1991.
- De facto Presidential system in 1948–1991 under a de jure parliamentary republic under the Temporary Provisions against the Communist Rebellion.
- as the Georgian SSR and after independence, parliamentary in 1990–1991, semi-presidential in 1991–1995, presidential in 1995–2004, semi-presidential in 2004–2005 and presidential 2005–2011. Semi-presidential in 2011–2019 and parliamentary since 2019.
- A semi-presidential republic as the Weimar Republic in 1918–1930, a presidential republic in 1930–1933, a totalitarian dictatorship under a parliamentary system in 1933–1945 as a Nazi Germany, a military occupation in 1945–1949 and a parliamentary republic in 1949.
- Presidential in 1990–1993, Semi-presidential in 1993–2010 (de jure); 1993–2021 (de facto), Parliamentary in 2010–2021 (de jure), and presidential again in 2021.
- A presidential republic (1960–1991, 2023-present), military dictatorship (1968–1991,1991–1992, 2012, 2020-present) single-party state (1960–1968, 1974–1991) semi-presidential republic (1991–2023).
- A one-party presidential republic (1960–1978), military dictatorship (1978–1992, 2005–2007, 2008–2009) semi-presidential republic since 1992.
- A single-party presidential republic (1960–1974, 1989–1993), a military dictatorship (1974–1993, 1996–1999, 1999, 2010–2011, 2023-present), a semi-presidential republic (1993–1996, 1999–2010, 2011–2023)
- All South Korean constitutions since 1963 provided for a strong executive Presidency; in addition, the formally-authoritarian Yushin Constitution of the Fourth Republic established a presidential power to dissolve the National Assembly, nominally counterbalanced by a vote of no confidence. Both of these provisions were retained by the Fifth Republic's constitution but repealed upon the transition to democracy and the establishment of the Sixth Republic
- An interim constitution passed in 1995 removed the President's ability to dissolve the Verkhovna Rada and the Rada's ability to dismiss the government by a vote of no confidence. Both of these provisions were restored upon the passage of a permanent constitution in 1996.
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External links
- The Great Debate: Parliament versus Congress
- Castagnola, Andrea/Pérez-Liñán, Aníbal: Presidential Control of High Courts in Latin America: A Long-term View (1904-2006), in Journal of Politics in Latin America, Hamburg 2009.
