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Individual strategy update and emergence of cooperation in social networks

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URI: https://hdl.handle.net/10016/15035
ISSN: 0022-250X (print version)
ISSN: 1545-5874 (online version)
DOI: 10.1080/0022250X.2010.520830
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2012
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Taylor & Francis
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In this paper, we critically study whether social networks can explain the emergence of cooperative behavior. We carry out an extensive simulation program in which we study the most representative social dilemmas. For the Prisoner’s Dilemma, it turns out that the emergence of cooperation is very dependent on the micro-dynamics. On the other hand, network clustering mostly facilitates global cooperation in the Stag Hunt game, whereas degree heterogeneity promotes cooperation in Snowdrift dilemmas. Thus, social networks do not promote cooperation in general, because the macrooutcome is not robust under change of dynamics. Therefore, having specific applications of interest in mind is crucial to include the appropriate microdetails in a good model.
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Journal of Mathematical Sociology, vol. 36, n. 1, 2012. Pp. 1-12
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