This discussion paper resulted in an article in <I>Management Science</I>. Volume 59 issue 7, pages 1514-1528.<P> This paper reports on 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...</p></i>

This paper analyses the effect of risk attitudes of firm owners on profits among micro and small enterprises (MSEs) in Lagos, Nigeria. Higher risk perceptions are shown to have a significant positive effect on profits, whereas risk propensity has a negative or no effect. Education, age, being...

This paper studies the impact of diversity in cognitive ability among members of a team on their performance. We conduct a large field experiment in which teams start up and manage real companies under identical circumstances. Exogenous variation in - otherwise random - team composition is...

What is the effect of dispersed levels of cognitive ability of members of a (business) team on their team’s 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...

One of the most salient and relevant dimensions of team heterogeneity is ethnicity. We measure the impact of ethnic diversity on the performance of business teams using a field experiment. We follow 550 students who set up 45 real companies as part of their curriculum in an international...

There is no robust empirical support for the effect of financial incentives on the decision to work in selfemploymentrather than as a wage earner. In the literature, this is seen as a puzzle. We offer a focus on theopportunity cost, i.e. the wages given up as an employee. Information on income...

See also the publication in <I>Small Business Economics</I> (2013), 40(3), 651-670.<P> Job satisfaction of self-employed and paid-employed workers is analyzed using the European Community Household Panel for the EU-15 covering the years 1994-2001. We distinguish between two types of job satisfaction, i.e....</p></i>