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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Overconfidence and the 2D:4D ratio

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Author(s):
da Silva, Eduardo Borges [1] ; Silva, Thiago Christiano [2, 3] ; Constantino, Michel [4] ; Amancio, Diego Raphael [5] ; Tabak, Benjamin Miranda [6]
Total Authors: 5
Affiliation:
[1] IBMEC, Brasilia, DF - Brazil
[2] Univ Catolica Brasilia, SGAN 916 Modulo B Ave W5, BR-70790160 Brasilia, DF - Brazil
[3] Univ Sao Paulo, Fac Philosophy Sci & Literatures Ribeirao Preto, Dept Comp & Math, Sao Paulo - Brazil
[4] Univ Catolica Dom Bosco, Campo Grande, MS - Brazil
[5] Univ Sao Paulo, Inst Math & Comp Sci, Sao Paulo - Brazil
[6] Fundacao Getulio Vargas, Escola Polit Publ & Governo, Brasilia, DF - Brazil
Total Affiliations: 6
Document type: Journal article
Source: JOURNAL OF BEHAVIORAL AND EXPERIMENTAL FINANCE; v. 25, MAR 2020.
Web of Science Citations: 0
Abstract

This paper tests whether prenatal testosterone levels are related to overconfidence. We use a non-intrusive method called 2D:4D ratio to measure prenatal exposure to testosterone of subjects. Using data collected from students from a large university in Brazil, we find that testosterone is positively correlated with higher levels of overconfidence. We also find support that males and self-declared white persons are associated to higher overconfidence levels comparatively to females and self-declared non-white persons, respectively. We also find that the marginal effect of prenatal testosterone on overconfidence is higher for left-handed than for right-handed persons. This means that the role of the prenatal testosterone, as measured by the 2D:4D ratio, on overconfidence is more relevant to left-handed persons. Our work presents empirical evidence that prenatal testosterone is an important predictor of individuals' overconfidence behavior and that biological traits either attenuate or exacerbate such relationship. (c) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 16/19069-9 - Using semantical information to classify texts modelled as complex networks
Grantee:Diego Raphael Amancio
Support Opportunities: Regular Research Grants