A cyclical network of indirect reciprocity is derived organizing 3- or6-person groups into rings of social interaction where the first individualcan help the second, the second the third, and so on till the last, who inreturn can help the first. Mutual cooperation is triggered by assuming...

In two-person generosity games the proposer's agreement payoffis exogenously given whereas that of the responder is endogenouslydetermined by the proposer's choice of the pie size. Earlier resultsfor two-person generosity games show that participants seem to caremore for eciency than for equity....

Standard economic explanations of good conduct in trade rely almostexclusively on future-directed extrinsic motivations induced by materialincentives. But intrinsic motives to behave trustworthy and to punishuntrustworthiness do support trade. In our model, intrinsically motivatedplayers are...

This paper investigates (i) the robustness of hindsight bias in experimental assetmarkets, (ii) the time invariance of the different experimental risk elicitationmethods of certainty equivalents and binary lottery choices, and (iii) their correspondence.The results of our within-subjects...

In this paper we study information revelation on asset markets with endogenousand exogenous information. Our results indicate that superior informationcan only be exploited in the beginning of trading. Information disseminateson the market and informational advantages are counter-balancedover...

This paper outlines why program evaluation should follow well-respected scientific standards and why it should be performed by independent researchers.