vary. The experiment implements two marginal return types, low and high, and uses the information that members have about … the heterogeneity to identify the applied contribution norm. If agents are aware of the heterogeneity, contributions … aware of the heterogeneity but contributions cannot be linked to types. Our results underline the importance of the …

under different information scenarios. We investigate a situation with two types who vary only in their external marginal … return (low and high). Results of a laboratory experiment suggest that, when group members are not aware of the heterogeneity … in their group, both types make the same nominal contributions. When agents are informed about the heterogeneity …

the heterogeneity to identify the applied contribution norm. We find that norms vary with the information environment. If … vary. The experiment implements two marginal return types, low and high, and uses the information that members have about … agents are aware of the heterogeneity, contributions increase in general. However, high types contribute more than low types …

valuations subjects play the mechanisms in a repeated setting. The mechanisms are compared in one case of complete information … and homogeneous valuations and in a second case with heterogeneous valuations and incomplete information. In both cases a …

-order punishment increases cooperation and efficiency when subjects have full information on the pattern of punishing, including its …

) Conditional Information Lottery design to control 'others' behaviour' without deception. We observe how contributions correlate …