In today's highly complex economic environment, cooperation among individuals is crucial for organizational and societal success. Most of the situations in which cooperation is required involve costly efforts whose consequences play out over time. Here, we provide a systematic and comprehensive...

Initiated by the seminal work of Fehr and Fischbacher (Evolution and Human Behavior (2004)), a large body of research has shown that people often take punitive actions towards norm violators even when they are not directly involved in transactions. This paper shows in an experimental setting...

We consider the psychological and social foundations of human contributions and punishments in a voluntary contributions mechanism with punishment (VCMP). We eliminate 'dynamic economic linkages' between the two stages of our "modified" VCMP to rule out other potential explanations. We use a...