We use skin conductance responses and self-reports of hedonic valence to study the emotional basis of cooperation and … punishment in a social dilemma. Emotional reaction to free-riding incites individuals to apply sanctions when they are available …. The application of sanctions activates a "virtuous emotional circle" that accompanies cooperation. Emotionally aroused …

Cooperation among people who are not related to each other is sustained by the availability of punishment devices which … help enforce social norms (Fehr and Gächter, 2002). However, the rationale for costly punishment remains unclear. This … paper reports the results of an experiment investigating inequality aversion and negative emotions as possible determinants …

punishment, so that they increase overall welfare ? We report an experiment in which players can issue non-binding threats to … punishment leads to lower threats, cooperation and welfare, restoring them to levels equal to or below the levels attained in the … cooperation within groups, it also has a detrimental impact on group earnings in the short-run. Could the introduction of pre …

be derived from reaching a better relative position. We use a real-effort experiment in which we permit individuals to …

lead, we report the results of a two-stage public good experiment with endogenous timing. Even though it turns out to be …