Psychology has inspired economics to recognize intentions in addition to outcomes as being relevant for utility and behavior. Reciprocal behavior, in particular, has been related to the kindness of chosen actions and how kindness can be derived from the benefits obtained in unchosen...

We carry out an experiment on a macroeconomic price setting game where prices are complements. Despite relevant information being common knowledge and price flexibility we observe significant deviation from equilibrium prices and history dependence. In a first treatment we observe that...

We let students play a corruption game, embedded into a variant of the ultimatum game. Those allotted the role of public servants chose between whistleblowing, opportunism and reciprocity by delivery (of a contract) and those acting as businesspeople chose how to frame the game and whether to...

We investigate methods for stimulating cooperation by help of a controlled lab-inthefield experiment. This allows us to compare group-related emotional and cognitive stimuli. The experiment was carried out in a sober classroom and in an emotionally loaded environment, a Bavarian beer garden...

Violent conflict is sometimes believed to provoke discrimination, but sometimes also seen to reduce pro-sociality in general. While discrimination may reinforce conflict, a lack of pro-sociality hinders peace reconciliation, social capital formation and development. We test which of these...