Details

Autor(en) / Beteiligte

• Coates, John M
• Gurnell, Mark
• Rustichini, Aldo

Titel

Second-to-fourth digit ratio predicts success among high-frequency financial traders

Ist Teil von

• Proceedings of the National Academy of Sciences - PNAS, 2009-01, Vol.106 (2), p.623-628

Ort / Verlag

United States: National Academy of Sciences

Erscheinungsjahr

2009

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• Prenatal androgens have important organizing effects on brain development and future behavior. The second-to-fourth digit length ratio (2D:4D) has been proposed as a marker of these prenatal androgen effects, a relatively longer fourth finger indicating higher prenatal androgen exposure. 2D:4D has been shown to predict success in highly competitive sports. Yet, little is known about the effects of prenatal androgens on an economically influential class of competitive risk taking--trading in the financial world. Here, we report the findings of a study conducted in the City of London in which we sampled 2D:4D from a group of male traders engaged in what is variously called "noise" or "high-frequency" trading. We found that 2D:4D predicted the traders' long-term profitability as well as the number of years they remained in the business. 2D:4D also predicted the sensitivity of their profitability to increases both in circulating testosterone and in market volatility. Our results suggest that prenatal androgens increase risk preferences and promote more rapid visuomotor scanning and physical reflexes. The success and longevity of traders exposed to high levels of prenatal androgens further suggests that financial markets may select for biological traits rather than rational expectations.