Does the experience of civil war promote in-group bias among survivors? We try to answer this question by analyzing cooperation in a prisoner's dilemma game among Syrian refugees in two host countries, Germany and Jordan. We use a between-subjects analysis to test our in-group cooperation...

It is now abundantly clear that social norms channel behavior and impact economic development. This insight leads to the question: How do social norms evolve? This survey examines research that relies on geography to explain the development of social norms, and suggests that religion and family...