Self-Confidence, Overconfidence and Prenatal Testosterone Exposure: Evidence from the Lab

Patricio Dalton () and Sayantan Ghosal

Working Papers from Business School - Economics, University of Glasgow

Abstract: This paper examines whether the degree of confidence and overconfidence in one’s ability is determined biologically. In particular, we study whether foetal testosterone exposure correlates with an incentive-compatible measure of confidence within an experimental setting. We find that men (rather than women) who were exposed to high testosterone levels in their mother’s womb are less likely to overestimate their actual performance, which in turn helps them to gain higher monetary rewards. Men exposed to low prenatal testosterone levels, instead, set unrealistically high expectations which results in self-defeating behavior. These results from the lab are able to recon- cile hitherto disconnected evidence from the field, by providing a link between traders’ overconfidence bias, long-term financial returns and prenatal testosterone exposure.

Keywords: 2D:4D; testosterone; neuroeconomics; expectations; overconfidence; self- confidence; goals. (search for similar items in EconPapers)
JEL-codes: C91 D03 D87 (search for similar items in EconPapers)
Date: 2014-02
New Economics Papers: this item is included in nep-evo, nep-exp and nep-neu
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Working Paper: Self-Confidence, Overconfidence and Prenatal Testosterone Exposure: Evidence from the Lab (2014)
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Persistent link: https://EconPapers.repec.org/RePEc:gla:glaewp:2014_02

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