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{{short description|Theorized behavior in economics}}
'''Statistical discrimination''' is an ] theory of racial or gender ] based on ]. According to this theory, inequality may exist and persist between demographic groups even when economic agents (consumers, workers, employers, etc.) are rational and non-prejudiced. This type of preferential treatment is labeled "statistical" because stereotypes may be based on the discriminated group's ] behavior.
{{Discrimination sidebar}}
'''Statistical discrimination''' is a ] behavior in which group ] arises when economic agents (consumers, workers, employers, etc.) have imperfect information about individuals they interact with.<ref name="Principle of Economics">{{cite book |last1=Mankiw |first1=N. Gregory |url=https://books.google.com/books?id=KQfFDwAAQBAJ |title=Principles of Economics |date=2020 |publisher=Cengage Learning |isbn=9780357133804 |edition=9 |pages=392–393 |access-date=19 September 2021}}</ref> According to this theory, inequality may exist and persist between demographic groups even when economic agents are rational. This is distinguished from ] which emphasizes the role of prejudice (sexism, racism, etc.) to explain disparities in labour market outcomes between demographic groups.<ref>{{Cite web |last=Thijssen |first=Lex |date=2016 |title=Taste-based versus Statistical Discrimination: Placing the Debate into Context |url=https://gemm2020.eu/wp-content/uploads/2016/12/GEMM-Report-Review-taste-vs-statistical-discrimination.pdf |website=GEMM Project}}</ref>


The theory of statistical discrimination was pioneered by ] (1973) and ] (1972).<ref>Fang, Hanming and Andrea Moro, 2011, "Theories of Statistical Discrimination and Affirmative Action: A Survey," in Jess Benhabib, Matthew Jackson and Alberto Bisin, eds: Handbook of Social Economics, Vol. 1A, Chapter 5, The Netherlands: North Holland, 2011, pp. 133-200. Available as , National Bureau of Economic Research, Inc.</ref> The name "statistical discrimination" relates to the way in which employers make employment decisions. Since their information on the applicants' productivity is imperfect, they use statistical information, both current and historical, on the group they belong to in order to infer productivity. If a minority group is less productive initially (due to historic discrimination or having navigated a bad equilibrium), each individual in this group will be assumed to be less productive and discrimination arises.<ref>{{Cite journal|last=Lang, Lehmann|date=2012|title=Racial Discrimination in the Labour Market: Theory and Empirics|journal=Journal of Economic Literature|volume=50|issue=4|pages=959–1006|jstor=23644909|doi=10.1257/jel.50.4.959|url=http://www.nber.org/papers/w17450.pdf}}</ref> This type of discrimination can result in a self-reinforcing ] over time, as the atypical individuals from the discriminated group are discouraged from participating in the market,<ref name="Rodgers2009">{{cite book|author=William M. Rodgers|title=Handbook on the Economics of Discrimination|url=https://books.google.com/books?id=RiVATAL4Om0C&pg=PA223|year=2009|publisher=Edward Elgar Publishing|isbn=978-1-84720-015-0|pages=223}}</ref> or from improving their skills as their (average) return on investment (education etc.) is less than for the non-discriminated group.<ref name="Dau-Schmidt2009">{{cite book|author=K. G. Dau-Schmidt|title=Labor and Employment Law and Economics|url=https://books.google.com/books?id=NE5AK4P6kWsC&pg=PA304|year=2009|publisher=Edward Elgar Publishing|isbn=978-1-78195-306-8|pages=304}}</ref>
The theory was pioneered by ]<ref>Arrow, K. J. (1973), "The Theory of Discrimination", in O. Ashenfelter and A. Rees (eds.), ''Discrimination in Labor Markets'', Princeton, NJ: Princeton University Press.
</ref>{{primary source inline|date=March 2014}} and ].<ref>{{cite journal | author=] | title=The Statistical Theory of Racism and Sexism | journal=American Economic Review| year=1972 | volume=62 | pages=659–661}}</ref>{{primary source inline|date=March 2014}}


A related form of statistical discrimination is based on differences in the signals that applicants send to employers. These signals report the applicant's productivity, but they are noisy.
The theory posits that in the absence of direct information about a certain fact of ability, a decision maker would substitute group averages. For instance, labor market discrimination may exist because employers don't know with certainty workers' ability, therefore they may resort to basing employment decisions on the workers' visible features, such as group identity, as long as these features ] with some desirable but more difficult to measure trait. The result is that atypical individuals from the disadvantaged group suffer unfair discrimination.<ref name="Tobler2005">{{cite book|author=Christa Tobler|title=Indirect Discrimination: A Case Study Into the Development of the Legal Concept of Indirect Discrimination Under EC Law|url=http://books.google.com/books?id=ePRKaU0k3nIC&pg=PA55|year=2005|publisher=Intersentia nv|isbn=978-90-5095-458-7|page=55}}</ref> This type of discrimination can result in a self-reinforcing ] over time, as the atypical individuals from the discriminated group are discouraged from participating in the market,<ref name="Rodgers2009">{{cite book|author=William M. Rodgers|title=Handbook on the Economics of Discrimination|url=http://books.google.com/books?id=RiVATAL4Om0C&pg=PA223|year=2009|publisher=Edward Elgar Publishing|isbn=978-1-84720-015-0|pages=223}}</ref> or improving their skills as their (average) return on investment (education etc.) is less than for the non-discriminated group.<ref name="Dau-Schmidt2009">{{cite book|author=K. G. Dau-Schmidt|title=Labor and Employment Law and Economics|url=http://books.google.com/books?id=NE5AK4P6kWsC&pg=PA304|year=2009|publisher=Edward Elgar Publishing|isbn=978-1-78195-306-8|pages=304}}</ref>
Discrimination can occur if groups differ on means, even if applicants have identical nominal above-average signals: ] will imply that a member of a higher-mean group will regress less as they are more likely to have a higher true value, while the lower-mean group member will regress more and the signal will overestimate their value if the group membership is ignored ("Kelley's paradox"<ref>Wainer & Brown 2006, </ref>). Discrimination can also occur on group ]s in the signals (i.e. in how noisy the signal is), even assuming equal averages. For variance-based discrimination to occur, the decision maker needs to be ]; such a decision maker will prefer the group with the lower variance.<ref name="England1992">{{cite book|author=Paula England|title=Comparable Worth: Theories and Evidence|url=https://books.google.com/books?id=JFLk3v19b0gC&pg=PA58|year=1992|publisher=Transaction Publishers|isbn=978-0-202-30348-2|pages=58–60}}</ref> Even assuming two theoretically identical groups (in all respects, including average and variance), a risk averse decision maker will prefer the group for which a measurement (signal, test) exists that minimizes the signal ].<ref name="England1992"/> For example, assume two individuals, A and B, have theoretically identical test scores well above the average for the entire population, but individual A's estimate is considered more reliable because a large amount of data may be available for their group in comparison to the group of B. Then if two people, one from A and one from B, apply for the same job, A is hired, because it is perceived that their score is a more reliable estimate, so a risk-averse decision maker sees B's score as more likely to be luck. Conversely, if the two groups are below average, B is hired, because group A's negative score is believed to be a better estimate. This generates differences in employment chances, but also in the average wages of different groups - a group with a lower signal precision will be disproportionately employed to lower paying jobs.<ref>{{Cite journal|last=Phelps|first=Edmund|date=1972|title=The Statistical Theory of Racism and Sexism|journal=The American Economic Review|volume=62|issue=4|pages=659–661|jstor=1806107}}</ref>


It has been suggested that ] against ], which is illegal in the ], may be partly caused by statistical discrimination.<ref></ref>
Another way statistical discrimination might be applied is due to differing amount of knowledge about different groups.{{cn|date=March 2014}} For instance, a large amount of data may be available for group A in comparison to group B. But say these two groups have the same distribution and average ability. If two groups, A and B, have average test scores well above the average for the entire population, but group A's estimate is considered more reliable, then if two people, one from A and one from B interview for a job, using statistical discrimination, A is hired, because it is perceived that his group score is a good estimate, but group B's group score is more likely to be "luck". Conversely, if the two groups are below average, B is hired, because group A's negative score is believed to be a better estimate.


Market forces are expected to penalize some forms of statistical discrimination; for example, a company capable and willing to test its job applicants on relevant metrics is expected to do better than one that relies only on group averages for employment decisions.<ref name="Nechyba2010">{{cite book|author=Thomas J. Nechyba|title=Microeconomics: An Intuitive Approach|url=https://books.google.com/books?id=zsV-cHg96RsC&pg=PA514|year=2010|publisher=Cengage Learning|isbn=978-0-324-27470-7|pages=514}}</ref>{{verify-inline|date=October 2018}}
Statistical discrimination is often used and tolerated, for example, when older people are charged more for life insurance, or when a college diploma is required for a job (because it is believed that college graduates perform, on average, better). Some well-documented instances of statistical discrimination for involuntary group membership also do exist and are tolerated. For example, many countries allow auto insurance companies to charge men and women with identical driving records different rates (or factor in gender when deciding whether to deny coverage). The same society may not tolerate statistical discrimination when it is applied to protected groups. For example, it has been suggested that home mortgage lending discrimination against ], which is illegal in the ], may be partly caused by statistical discrimination.<ref>Rooting Out Discrimination in Home Mortgage Lending - </ref>


According to a 2020 study, managers who had experience with statistical discrimination theory were more likely to believe in the accuracy of stereotypes, accept stereotyping, and engage in gender discrimination in hiring. When managers were informed of criticisms against statistical discrimination, these effects were reduced.<ref>{{Cite journal|last=Tilcsik|first=András|date=2020-12-11|title=Statistical Discrimination and the Rationalization of Stereotypes|journal=American Sociological Review|volume=86|language=en|pages=93–122|doi=10.1177/0003122420969399|issn=0003-1224|doi-access=free}}</ref>
Market forces are expected to penalize some forms of statistical discrimination; for example, a company capable and willing to test its job applicants on relevant metrics is expected to do better than one that relies only on group averages for employment decisions.<ref name="Nechyba2010">{{cite book|author=Nechyba|title=Microeconomics: An Intuitive Approach|url=http://books.google.com/books?id=zsV-cHg96RsC&pg=PA514|year=2010|publisher=Cengage Learning|isbn=0-324-27470-X|pages=514}}</ref> However, this assumption does not take into account the economic cost of testing itself, which may not be feasible in some scenarios like predicting the future likelihood that an employee will quit for personal reasons.<ref name="University2004">{{cite book|author=Anne L. Alstott|title=No Exit: What Parents Owe Their Children and What Society Owes Parents|url=http://books.google.com/books?id=Mnqza00w-SEC&pg=PA149|year=May 2004|publisher=Oxford University Press|isbn=978-0-19-534749-4|page=149}}</ref>

== See also ==

* ]


== References == == References ==
{{reflist}} {{reflist}}

==Further reading== ==Further reading==
{{refbegin}} {{refbegin}}
* Arrow, K. J. (1973), "The Theory of Discrimination", in O. Ashenfelter and A. Rees (eds.), ''Discrimination in Labor Markets'', Princeton, NJ: Princeton University Press. {{ISBN|0-691-04170-9}}
* Coate, Steven and Glenn Loury, 1993, Will affirmative-action policies eliminate negative stereotypes?,The American Economic Review, 1220--1240. * Coate, Steven and Glenn Loury, 1993, Will affirmative-action policies eliminate negative stereotypes?, The American Economic Review, 1220–1240. {{JSTOR|2117558}}
* Fang, Hanming and Andrea Moro, 2010, "Theories of Statistical Discrimination and Affirmative Action: A Survey," , National Bureau of Economic Research, Inc.
* ], ''The Anatomy of Racial Inequality'', Princeton University Press. Informally illustrates the theory in the context of ]' racial differences. * ], ''The Anatomy of Racial Inequality'', Princeton University Press. Informally illustrates the theory in the context of ]' racial differences.
* {{cite journal | author=Phelps, Edmund S. | title=The Statistical Theory of Racism and Sexism | journal=American Economic Review| year=1972 | volume=62 | issue=4 | pages=659–661|jstor=1806107| author-link=Edmund Phelps }}
{{refend}} {{refend}}


{{Discrimination}}
]
]

Latest revision as of 02:59, 12 August 2024

Theorized behavior in economics
Part of a series on
Discrimination
Forms
Attributes
Social
Religious
Ethnic/national
Manifestations
Policies
Countermeasures
Related topics

Statistical discrimination is a theorized behavior in which group inequality arises when economic agents (consumers, workers, employers, etc.) have imperfect information about individuals they interact with. According to this theory, inequality may exist and persist between demographic groups even when economic agents are rational. This is distinguished from taste-based discrimination which emphasizes the role of prejudice (sexism, racism, etc.) to explain disparities in labour market outcomes between demographic groups.

The theory of statistical discrimination was pioneered by Kenneth Arrow (1973) and Edmund Phelps (1972). The name "statistical discrimination" relates to the way in which employers make employment decisions. Since their information on the applicants' productivity is imperfect, they use statistical information, both current and historical, on the group they belong to in order to infer productivity. If a minority group is less productive initially (due to historic discrimination or having navigated a bad equilibrium), each individual in this group will be assumed to be less productive and discrimination arises. This type of discrimination can result in a self-reinforcing vicious circle over time, as the atypical individuals from the discriminated group are discouraged from participating in the market, or from improving their skills as their (average) return on investment (education etc.) is less than for the non-discriminated group.

A related form of statistical discrimination is based on differences in the signals that applicants send to employers. These signals report the applicant's productivity, but they are noisy. Discrimination can occur if groups differ on means, even if applicants have identical nominal above-average signals: regression to the mean will imply that a member of a higher-mean group will regress less as they are more likely to have a higher true value, while the lower-mean group member will regress more and the signal will overestimate their value if the group membership is ignored ("Kelley's paradox"). Discrimination can also occur on group variances in the signals (i.e. in how noisy the signal is), even assuming equal averages. For variance-based discrimination to occur, the decision maker needs to be risk averse; such a decision maker will prefer the group with the lower variance. Even assuming two theoretically identical groups (in all respects, including average and variance), a risk averse decision maker will prefer the group for which a measurement (signal, test) exists that minimizes the signal error term. For example, assume two individuals, A and B, have theoretically identical test scores well above the average for the entire population, but individual A's estimate is considered more reliable because a large amount of data may be available for their group in comparison to the group of B. Then if two people, one from A and one from B, apply for the same job, A is hired, because it is perceived that their score is a more reliable estimate, so a risk-averse decision maker sees B's score as more likely to be luck. Conversely, if the two groups are below average, B is hired, because group A's negative score is believed to be a better estimate. This generates differences in employment chances, but also in the average wages of different groups - a group with a lower signal precision will be disproportionately employed to lower paying jobs.

It has been suggested that home mortgage lending discrimination against African Americans, which is illegal in the United States, may be partly caused by statistical discrimination.

Market forces are expected to penalize some forms of statistical discrimination; for example, a company capable and willing to test its job applicants on relevant metrics is expected to do better than one that relies only on group averages for employment decisions.

According to a 2020 study, managers who had experience with statistical discrimination theory were more likely to believe in the accuracy of stereotypes, accept stereotyping, and engage in gender discrimination in hiring. When managers were informed of criticisms against statistical discrimination, these effects were reduced.

See also

References

  1. Mankiw, N. Gregory (2020). Principles of Economics (9 ed.). Cengage Learning. pp. 392–393. ISBN 9780357133804. Retrieved 19 September 2021.
  2. Thijssen, Lex (2016). "Taste-based versus Statistical Discrimination: Placing the Debate into Context" (PDF). GEMM Project.
  3. Fang, Hanming and Andrea Moro, 2011, "Theories of Statistical Discrimination and Affirmative Action: A Survey," in Jess Benhabib, Matthew Jackson and Alberto Bisin, eds: Handbook of Social Economics, Vol. 1A, Chapter 5, The Netherlands: North Holland, 2011, pp. 133-200. Available as NBER Working Papers 15860, National Bureau of Economic Research, Inc.
  4. Lang, Lehmann (2012). "Racial Discrimination in the Labour Market: Theory and Empirics" (PDF). Journal of Economic Literature. 50 (4): 959–1006. doi:10.1257/jel.50.4.959. JSTOR 23644909.
  5. William M. Rodgers (2009). Handbook on the Economics of Discrimination. Edward Elgar Publishing. p. 223. ISBN 978-1-84720-015-0.
  6. K. G. Dau-Schmidt (2009). Labor and Employment Law and Economics. Edward Elgar Publishing. p. 304. ISBN 978-1-78195-306-8.
  7. Wainer & Brown 2006, "Three Statistical Paradoxes in the Interpretation of Group Differences: Illustrated with Medical School Admission and Licensing Data"
  8. ^ Paula England (1992). Comparable Worth: Theories and Evidence. Transaction Publishers. pp. 58–60. ISBN 978-0-202-30348-2.
  9. Phelps, Edmund (1972). "The Statistical Theory of Racism and Sexism". The American Economic Review. 62 (4): 659–661. JSTOR 1806107.
  10. Rooting Out Discrimination in Home Mortgage Lending -
  11. Thomas J. Nechyba (2010). Microeconomics: An Intuitive Approach. Cengage Learning. p. 514. ISBN 978-0-324-27470-7.
  12. Tilcsik, András (2020-12-11). "Statistical Discrimination and the Rationalization of Stereotypes". American Sociological Review. 86: 93–122. doi:10.1177/0003122420969399. ISSN 0003-1224.

Further reading

  • Arrow, K. J. (1973), "The Theory of Discrimination", in O. Ashenfelter and A. Rees (eds.), Discrimination in Labor Markets, Princeton, NJ: Princeton University Press. ISBN 0-691-04170-9
  • Coate, Steven and Glenn Loury, 1993, Will affirmative-action policies eliminate negative stereotypes?, The American Economic Review, 1220–1240. JSTOR 2117558
  • Glenn Loury, The Anatomy of Racial Inequality, Princeton University Press. Informally illustrates the theory in the context of United States' racial differences.
  • Phelps, Edmund S. (1972). "The Statistical Theory of Racism and Sexism". American Economic Review. 62 (4): 659–661. JSTOR 1806107.
Discrimination
Forms
Attributes
Social
Religious
Ethnic/National
Manifestations
Discriminatory
policies
Countermeasures
Related topics
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