Document Detail

A tale of two defectors: the importance of standing for evolution of indirect reciprocity.
MedLine Citation:
PMID:  12900209     Owner:  NLM     Status:  MEDLINE    
Indirect reciprocity occurs when the cooperative behavior between two individuals is contingent on their previous behavior toward others. Previous theoretical analysis indicates that indirect reciprocity can evolve if individuals use an image-scoring strategy. In this paper, we show that, when errors are added, indirect reciprocity cannot be based on an image-scoring strategy. However, if individuals use a standing strategy, then cooperation through indirect reciprocity is evolutionarily stable. These two strategies differ with respect to the information to which they attend. While image-scoring strategies only need attend to the actions of others, standing strategies also require information about intent. We speculate that this difference may shed light on the evolvability of indirect reciprocity. Additionally, we show that systems of indirect reciprocity are highly sensitive to the availability of information. Finally, we present a model which shows that if indirect reciprocity were to evolve, selection should also favor trusting behavior in relations between strangers.
Karthik Panchanathan; Robert Boyd
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of theoretical biology     Volume:  224     ISSN:  0022-5193     ISO Abbreviation:  J. Theor. Biol.     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-08-05     Completed Date:  2003-11-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376342     Medline TA:  J Theor Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  115-26     Citation Subset:  IM    
Department of Anthropology, University of California, Haines Hall 341 Box 951553, Los Angeles, CA 90095, USA.
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MeSH Terms
Cooperative Behavior*
Helping Behavior
Hierarchy, Social
Interpersonal Relations
Models, Psychological
Trust / psychology

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