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On the Evolution of Overconfidence and Entrepreneurs

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Author Info

  • Antonio E. Bernardo

    (University of California, Los Angeles)

  • Ivo Welch

    (Yale School of Management)

Abstract

This paper explains why seemingly irrational overconfident behavior can persist. Information aggregation is poor in groups in which most individuals herd. By ignoring the herd, the actions of overconfident individuals ("entrepreneurs") convey their private information. However, entrepreneurs make mistakes and thus die more frequently. The socially optimal proportion of entrepreneurs trades off the positive information externality against high attrition rates of entrepreneurs, and depends on the size of the group, on the degree of overconfidence, and on the accuracy of individuals' private information. The stationary distribution trades off the fitness of the group against the fitness of overconfident individuals.

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File URL: http://cowles.econ.yale.edu/P/cd/d13a/d1307.pdf
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Bibliographic Info

Paper provided by Cowles Foundation for Research in Economics, Yale University in its series Cowles Foundation Discussion Papers with number 1307.

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Length: 52 pages
Date of creation: Jun 2001
Date of revision:
Handle: RePEc:cwl:cwldpp:1307

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Postal: Yale University, Box 208281, New Haven, CT 06520-8281 USA
Phone: (203) 432-3702
Fax: (203) 432-6167
Web page: http://cowles.econ.yale.edu/
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Postal: Cowles Foundation, Yale University, Box 208281, New Haven, CT 06520-8281 USA

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Keywords: Evolution; overconfidence; behavioral economics;

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References

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  1. Overconfidence
    by Peter Klein in Organizations and Markets on 2010-07-26 17:56:34
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