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dc.contributor.authorBrañas Garza, Pablo 
dc.contributor.authorRustichini, Aldo
dc.date.accessioned2014-03-26T10:19:36Z
dc.date.available2014-03-26T10:19:36Z
dc.date.issued2011
dc.identifier.citationBrañaz-Garza, P.; Rustichini, A. Organizing Effects of Testosterone and Economic Behavior: Not Just Risk Taking. Plos One, 6(12): e29842 (2011). [http://hdl.handle.net/10481/31120]es_ES
dc.identifier.issn1932-6203
dc.identifier.otherdoi: 10.1371/journal.pone.0029842
dc.identifier.urihttp://hdl.handle.net/10481/31120
dc.description.abstractRecent literature emphasizes the role that testosterone, as well as markers indicating early exposure to T and its organizing effect on the brain (such as the ratio of second to fourth finger, 2D: 4D), have on performance in financial markets. These results may suggest that the main effect of T, either circulating or in fetal exposure, on economic behavior occurs through the increased willingness to take risks. However, these findings indicate that traders with a low digit ratio are not only more profitable, but more able to survive in the long run, thus the effect might consist of more than just lower risk aversion. In addition, recent literature suggests a positive correlation between abstract reasoning ability and higher willingness to take risks. To test the two hypotheses of testosterone on performance in financial activities (effect on risk attitude versus a complex effect involving risk attitude and reasoning ability), we gather data on the three variables in a sample of 188 ethnically homogeneous college students (Caucasians). We measure a 2D:4D digit ratio, abstract reasoning ability with the Raven Progressive Matrices task, and risk attitude with choice among lotteries. Low digit ratio in men is associated with higher risk taking and higher scores in abstract reasoning ability when a combined measure of risk aversion over different tasks is used. This explains both the higher performance and higher survival rate observed in traders, as well as the observed correlation between abstract reasoning ability and risk taking. We also analyze how much of the total effect of digit ratio on risk attitude is direct, and how much is mediated. Mediation analysis shows that a substantial part of the effect of T on attitude to risk is mediated by abstract reasoning ability.es_ES
dc.description.sponsorshipThe authors acknowledge financial aid from MCI (SEJ2007-62081) and Junta Andalucia (PO7-SEJ-02547) for PBG, and NSF (SES-0924896) for AR.es_ES
dc.language.isoenges_ES
dc.publisherPublic Library of Science (PLOS)es_ES
dc.subjectBehavior es_ES
dc.subjectCognitiones_ES
dc.subjectHandses_ES
dc.subjectMusic cognitiones_ES
dc.subjectPayment es_ES
dc.subjectReasoning es_ES
dc.subjectTest statisticses_ES
dc.subjectTestosteronees_ES
dc.titleOrganizing Effects of Testosterone and Economic Behavior: Not Just Risk Takinges_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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