This paper explores the extent to which individuals trust, reciprocate, cooperate and pool risk by using a battery of field experiments containing the trust game, the voluntary contributions mechanism and the risk pooling game; applied in six capital cities in Latin America. The results suggest...

Understanding the proximate and ultimate sources of human cooperation is a fundamental issue in all behavioural sciences. In this article we review the experimental evidence on how people solve cooperation problems. Existing studies show without doubt that direct and indirect reciprocity are...