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. 2009 Aug 24;106(36):15268–15273. doi: 10.1073/pnas.0907352106

Table 2.

Regression of risk aversion on digit ratio

Whole sample
Only men
Only women
I II III IV V VI VII
Average digit ratio 41.766 9.544 −2.370 −37.161 −43.285 79.034 86.532
(32.215) (32.523) (36.832) (40.959) (42.457) (50.192) (68.884)
Gender: Female = 1 7.544*** 9.575***
(2.615) (3.477)
Testosterone (pg/mL) 0.037 0.051 −0.019
(0.044) (0.050) (0.094)
Observations 181 181 175 116 112 65 63
R-squared 0.007 0.052 0.054 0.006 0.017 0.024 0.021

This table shows Ordinary Least Squares regressions of the premium a subject was willing to pay to avoid a 50/50 lottery $0/$200 on the 2D:4D digit ratio. Risk aversion is positively correlated with the digit ratio. Heteroschedasticity robust standard errors are reported in brackets.

* Means significantly different from zero at the 10% level (two-tail t test),

** at the 5% level, and

*** at the 1% level.