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Quarterly Journal of Economics Vol. 116 No. 1 2001

Boys will be Boys: Gender, Overconfidence, and Common Stock Investment

B. M. Barber; T. Odean

University of California, Davis

Abstract

Theoretical models predict that overconfident investors trade excessively. We test this prediction by partitioning investors on gender. Psychological research demonstrates that, in areas such as finance, men are more overconfident than women. Thus, theory predicts that men will trade more excessively than women. Using account data for over 35,000 households from a large discount brokerage, we analyze the common stock investments of men and women from February 1991 through January 1997. We document that men trade 45 percent more than women. Trading reduces men's net returns by 2.65 percentage points a year as opposed to 1.72 percentage points for women.

DOI
10.1162/003355301556400
Volume
116
Issue
1
Pages
261-292
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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