types can be exploited to enhance cooperation by structuring the twice-played prisoners' dilemma to "start small," so that …

paper, we conduct experiments to investigate how punishment affects cooperation in a two-person stochastic prisoner … useful information for designing efficient incentive mechanisms to induce cooperation in a stochastic social dilemma …

to enforce cooperation within these different regimes. This paper develops a measure of the tightness of historical … readily support in-group members in need. This cooperation regime is enforced by tribalistic moral values, emotions of … social cooperation systems …

against policies that impose direct costs even if they induce larger indirect benefits. Using a lab experiment, we find that a …

important features of the data they possess. We conduct a field experiment with seaweed farmers to test a model of "learning …

literature is that market experience is endogenous. This study presents a framed field experiment that exogenously induces market …

experiment in the laboratory, the cost to gather the data would be well over $350,000. The data reveal several interesting …

increases. The experiment also points to new avenues for refining the theory. We find that, as the payoff of a successful …We conducted a laboratory experiment to test the comparative statics predictions of a new approach to collective action … also allows to decompose the mechanism that leads to more cooperation into a "belief effect" and a "range of cooperation …