The thesis answers several questions concerning how people behave in an economic context if behavioral norms and rules are not obvious. In particular, it is investigated how subjects behave if other people in the role of third parties are involved or if the subjects themselves have the role of...

This dissertation studies the role of social contexts for prosocial behavior. Motivated by insights from psychology, preferences are assumed to be context-sensitive. The extent to which individuals are prosocial depends therefore on the social and economic context. This dissertation investigates...