Horizontal inequality by ethnic group has remained remarkably persistent for wealth, education, and access to certain services in Nigeria. While significant gains in the reduction of inequality and improvement in access have been made for more locally administered services, outcomes are stickier...

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...

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...