Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/83840 
Year of Publication: 
2003
Series/Report no.: 
Working Paper No. 560
Publisher: 
University of California, Economics Department, Santa Cruz, CA
Abstract: 
A preference for negative reciprocity is an important part of the human emotional repertoire. We model its role in sustaining cooperative behavior but highlight an intrinsic free-rider problem: the fitness benefits of negative reciprocity are dispersed throughout the entire group, but the fitness costs are borne personally. Evolutionary forces tend to unravel people's willingness to bear the personal cost of punishing culprits. In our model, the countervailing force that sustains negative reciprocity is a meme consisting of a group norm together with low-powered (and low-cost) group enforcement of the norm. The main result is that such memes coevolve with personal tastes and capacities so as to produce the optimal level of negative reciprocity.
Subjects: 
Altruism
reciprocity
negative reciprocity
coevolution
Document Type: 
Working Paper

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