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...

Intuition is a central element of entrepreneurial decision-making. We conceptually replicate a published study by using new representative data from 1961 adults and the widely used Cognitive Reflection Test, which assesses the ability to avoid intuitive decisions and to switch to an analytical...