Do risk and time preferences have biological roots?

Andreas C. Drichoutis, Rodolfo M. Nayga

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


We revisit the claims about the biological underpinnings of economic behavior by specifically exploring if observed gender differences in risk/time preferences can be explained by natural fluctuations in progesterone/estradiol levels during the menstrual cycle and by prenatal exposure to testosterone and estrogen levels. We find no effect of the menstrual cycle (and thereby, of associated fluctuations in progesterone and estradiol levels) or of the digit ratio on either risk or time preferences.

Original languageEnglish
Pages (from-to)235-256
Number of pages22
JournalSouthern Economic Journal
Issue number1
Publication statusPublished - 2015 Jul 1

ASJC Scopus subject areas

  • Economics and Econometrics


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