The gender composition of teams, and the way it impacts economic outcomes, has attracted increasing attention in the media and the economics literature. Nonetheless, past research has left open the question of how a group's gender composition impacts group performance. In this paper, we propose...

Previous research indicates that cheap-talk promises promote cooperation. We extend the empirical study of promises to a three person environment. Doing this enabled us to study two features of promises in the naturally occurring world that have not been studied in the previous literature. For...

The literature on pro-social behavior shows that older children are more generous than younger children; however, the level of individual generosity is heterogeneous even between children of the same age. This paper investigates whether a child’s popularity affects a child’s generosity. Our...