Facts and Misconceptions about 2D:4D, Social and Risk Preferences

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Abstract
We study how the ratio between the length of the second and fourth digit (2D:4D) correlates with choices in social and risk preferences elicitation tasks by building a large dataset from five experimental projects with more than 800 subjects. Our results confirm the recent literature that downplays the link between 2D:4D and many domains of economic interest, such as social and risk preferences. As for the former, we find that social preferences are significantly lower when 2D:4D is above the median value only for subjects with low cognitive ability. As for the latter, we find that a high 2D:4D is not correlated with the frequency of subjects' risky choices.
Funding Information
  • Ministerio de Economía y Competitividad (ECO2015-65820-P, ECO2016-77200-P, ECO2013-43119)
  • Universidad de Alicante (GRE 13-04)
  • Generalitat Valenciana

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