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The non-use of Bayes rule: representative evidence on bounded rationality

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  • Dohmen, T.J.

    (Macro, International & Labour Economics, Research Centre for Educ and Labour Mark)

  • Falk, A.
  • Huffman, D.

    (Externe publicaties SBE)

  • Marklein, F.
  • Sunde, U.

    (Externe publicaties SBE)

Abstract

The ability to process new information and to compute conditional probabilities iscrucial for making appropriate decisions under uncertainty. In this paper, weinvestigate the capability of inferring conditional probabilities in a representativesample of the German population. Our results show that only a small fraction ofthe population responds consistently with Bayes'' rule. Instead, most individualseither neglect the base probability, or the arrival of new information, in theirresponses. The probability to give normatively correct answers decreases with thelevel of education.
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Suggested Citation

  • Dohmen, T.J. & Falk, A. & Huffman, D. & Marklein, F. & Sunde, U., 2009. "The non-use of Bayes rule: representative evidence on bounded rationality," Research Memorandum 038, Maastricht University, Maastricht Research School of Economics of Technology and Organization (METEOR).
    • Handle: RePEc:unm:umamet:2009038
    DOI: 10.26481/umamet.2009038
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    References listed on IDEAS

    as
    1. Thomas Dohmen & Armin Falk & David Huffman & Uwe Sunde, 2010. "Are Risk Aversion and Impatience Related to Cognitive Ability?," American Economic Review, American Economic Association, vol. 100(3), pages 1238-1260, June.
    2. David M. Grether, 1980. "Bayes Rule as a Descriptive Model: The Representativeness Heuristic," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 95(3), pages 537-557.
    3. Gary Charness & Dan Levin, 2005. "When Optimal Choices Feel Wrong: A Laboratory Study of Bayesian Updating, Complexity, and Affect," American Economic Review, American Economic Association, vol. 95(4), pages 1300-1309, September.
    4. John Conlisk, 1996. "Why Bounded Rationality?," Journal of Economic Literature, American Economic Association, vol. 34(2), pages 669-700, June.
    5. Viscusi, W Kip & O'Connor, Charles J, 1984. "Adaptive Responses to Chemical Labeling: Are Workers Bayesian Decision Makers?," American Economic Review, American Economic Association, vol. 74(5), pages 942-956, December.
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    Cited by:

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    2. Dohmen, Thomas, 2014. "Behavioral labor economics: Advances and future directions," Labour Economics, Elsevier, vol. 30(C), pages 71-85.
    3. Pedro Bordalo & John Conlon & Nicola Gennaioli & Spencer Kwon & Andrei Shleifer, 2023. "How People Use Statistics," Working Papers 699, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
    4. Salvatore Nunnari & Giovanni Montari, 2019. "Audi Alteram Partem: An Experiment on Selective Exposure to Information," Working Papers 650, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.

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