Communication has been shown to play a positive role in promoting trust, yet there is no evidence on how sensitive this result is to the size of the gains from cooperation. To investigate this issue, we adopt an experimental design in which a trustee can send a free form message to a trustor,...

This paper studies contributions and punishments in a linear public good game, where group members have different sources of endowment. We compare the behavior of homogeneous groups, in which subjects are exogenously assigned the same endowments, with that of heterogeneous groups, in which half...

While the existence of the in-group bias is a well-researched phenomenon in Economics, the established findings are of limited value for understanding its dynamics in the context of challenging societal and economic times. The aim of this paper is to shed more light on whether intergroup...