Services are often provided by groups. The question of remuneration arises both at the group level and for each individual group member. We examine the question of how relative pay should be designed within the group if all group members are to regard the payment scheme as fair. We use a...

Retributive responses do play a role in human behavior. Whether they are primarily triggered by supposed intentions or by observed consequences of actions is an important question. It can be addressed by experimental studies of retributive responses in situations in which the individual actor...

Fairness is a strong concern as shown by the robust results of dictator giving and ultimatum experiments. Efficiency, measured by the sum of individual payoffs, is another potential concern in games such as the prisoners’ dilemma and public good provision games. In our experiment participants...