2D:4D and Self-Employment: A Preregistered Replication Study in a Large General Population Sample

  title={2D:4D and Self-Employment: A Preregistered Replication Study in a Large General Population Sample},
  author={Frank M. Fossen and Levent Neyse and Magnus Johannesson and Anna Dreber},
  journal={Entrepreneurship Theory and Practice},
  pages={21 - 43}
The 2D: 4D digit ratio, the ratio of the length of the second finger to the length of the fourth finger, is often considered a proxy for testosterone exposure in utero. A recent study reported, among other things, an association between the left-hand 2D:4D and self-employment in a sample of 974 adults. In this preregistered study, we replicate the 2D:4D results on a sample of more than 2100 adults from the German Socioeconomic Panel-Innovation Sample (SOEP-IS). We find no statistically… 

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