We estimate the effect of downsizing announcement on workplace performance using data from a German bakery chain of 193 shops. Faced with intensified competition, the firm decided to sell or close down 57 of its worst performing shops. We identify the effect of downsizing from a plausibly...

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...

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

In a field experiment with a retail chain (1,300 employees, 193 shops), randomly selected sales teams received a bonus. The bonus increases both sales and number of customers dealt with by 3%. Each dollar spent on the bonus generates $3.80 in sales, and $2.10 in profit. Wages increase by 2.2%...

Previous empirical studies have shown that solo entrepreneurs benefit from having balanced skills: Jacks-of-All-Trades (JATs) are better entrepreneurs than specialists are. Nowadays however, the majority of entrepreneurs start up and run ventures together in teams.In this paper we test whether...

A novel field experiment shows that learning activities in pairs with a greater spread in abilities lead to better individual work performance, relative to those in pairs with similar abilities. The positive effect of the former is not limited to their performance in peer learning material, but...