Why do some countries join the EU earlier than others, why do others wait? Inorder to answer this question we apply the theory of investment under uncertainty (Dixit andPindyck, 1994) to the decision on EU-membership. We develop a simplified model of twoperiods to study how the value of waiting...

Under what conditions does intergroup contact lead to conflict? We provide a novel answer to this question by highlighting the role of reputation mechanisms in sustaining cooperation. Reputational concerns can deter defection in one-time interactions within a group, but the informational content...