pillar is internalized norms of cooperation, sustained by emotions such as guilt and shame. The second pillar is the … motivation can sustain cooperation if enough people cooperate but can jeopardise social order if many others follow selfish …

may render the provision of explicit incentive inefficient because the incentives may crowd out voluntary co-operation. It …

" VCMP to rule out other potential explanations. We use a beliefs-based model, rooted in psychological game theory, to derive …

contributing to the public good. The model combines a follower's concern for fairness and informational signaling about …

distributional equity. Fairness among agents with different preferences is taken into account by considering their marginal … perceived as an outcome of fair cooperation. …

fairness perceptions affect the reaction to punishment and whether this effect is consistent across repeated play and role … behavior depending on their fairness perceptions, their experienced emotions, and their interaction with responders. We find … that fairness plays an important role in the behavior of proposers. Specifically, deviations from a perceived fairness norm …

of universal cooperation because the more prosocial subjects populate the two efficient institutions first, elect … prosocial judges (if institutionally possible), and immediately establish a social norm of high cooperation. This norm appears … to guide subjects' cooperation and punishment choices, including the virtually complete removal of antisocial punishment …