that group identity is a key factor in the explanation of intergroup cooperation and competition. …

Under what conditions can cooperation be sustained in a network of strangers? Here we study the role of institutions … possible, including full intertemporal cooperation supported by a social norm based on community punishment of defectors. We … coordination on intertemporal cooperation in ways that networks of strangers were unable to achieve through social norms. …

Charness and Dufwenberg (2006) find that promises increase cooperation and suggest that the behavior of subjects in …

nationally representative samples from six other Organisation for Economic Co-operation and Development (OECD) countries (France …

In this study, we estimate unadjusted and adjusted gender gap in time preference, risk attitudes, altruism, trust …, trustworthiness, cooperation and competitiveness using data on 1088 high-school students from 53 classes. These data, collected by … patience, time inconsistency and cooperation at the 5% significance level. We also show that these initial gender differences …

employed in cooperatives.We gathered incentive-compatible measures of risk preferences, time preferences, reciprocity, altruism …