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Human cooperation, occurring without reciprocation and between unrelated individuals in large populations, represents … evidence for lower cooperation (i) when exposed to social information about peer cooperation levels than without such … observed cooperation was more likely to be caused by participants' general propensity to cooperate than by the effect of social …
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Experimental social scientists working at research-intensive institutions deal inevitably with subjects who have most likely participated in previous experiments. It is an important methodological question to know whether participants that have acquired a high level of lab-sophistication show...
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This dissertation studies the role of social contexts for prosocial behavior. Motivated by insights from psychology, preferences are assumed to be context-sensitive. The extent to which individuals are prosocial depends therefore on the social and economic context. This dissertation investigates...
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Understanding the proximate and ultimate sources of human cooperation is a fundamental issue in all behavioural … sciences. In this article we review the experimental evidence on how people solve cooperation problems. Existing studies show … without doubt that direct and indirect reciprocity are important determinants of successful cooperation. We also discuss the …
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