We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have previously been (i) in conflict with one another, (ii) in conflict with a different group, or (iii) not previously exposed to conflict. We model conflict using an inter-group Tullock...

We study cooperation within and between groups in the laboratory, comparing treatments in which two groups have previously been (i) in conflict with one another, (ii) in conflict with a different group, or (iii) not previously exposed to conflict. We model conflict using an inter-group Tullock...

Trust is essential to many daily exchanges, wherein a trustor sometimes decides to be vulnerable to an individual or other times to a group. Although a trustor may trust an individual more or less than a group, this topic has been underexplored. We therefore examine whether people are more...