post announcement mechanism does not have a significant effect on the cooperation rate. However, the nudge leads to a … striking increase in the cooperation rate. We provide suggestive evidence that the nudge we use provides subjects with a focal …

the need for a new theory of how cooperation emerges. … daher die Notwendigkeit einer neuen Theorie über die Entstehung von Kooperation nahe. …

Social interactions predominantly take place under the shadow of the future. Previous literature explains cooperation … paper provides a causal test of the importance of social preferences for cooperation, varying the composition of …-registered experiments (N = 1,074), we show that groups of prosocial individuals achieve substantially higher levels of cooperation. The …

communication, we also find systematic deviations from optimal behavior in how the communicated information is used. Specifically …

A growing experimental literature studies the endogenous choice of institutions to solve cooperation problems arising … of institutional choice. Almost all institutions improve cooperation if they are implemented, but they are not always … identified as important determinants of institutional choice. Cooperation tends to be higher under endogenously chosen …

mode or were induced to rely either on emotion or reason. Cooperation was measured across a series of commonly used and … that average cooperation rates increased when emotions were induced rather than reason. At the trait level, our results … show that individual decision modes and cooperation rates were not correlated when subjects could rely on their primary …