What is the effect of dispersed levels of cognitive ability of members of a (business) team on their teamś performance? This paper reports the results of a field experiment in which 573 students in 49 teams start up and manage real companies under identical circumstances. We ensured exogenous...

This paper reports about a field experiment conducted to estimate the impact of the share of women in business teams on their performance. Teams consisting of undergraduate students in business studies start up a venture as part of their curriculum. We manipulated the gender composition of teams...

Empirical evidence supports the conventional wisdom that entrepreneurs are more optimistic and overconfident than others. However, the same holds true for top managers. In this lab-in-the-field experiment we directly compare the scores of entrepreneurs, managers and employees on a comprehensive...

We examine in a large survey (n = 1,928) how contemplative entrepreneurs, managers and employees are in their decision making styles. Besides two well-known subjective measures taken from psychology, we also build on Rubinstein (2016) by including two objective measures derived from response...