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Cooperation through imitation and exclusion in networks

Constanza Fosco () and Friederike Mengel

Journal of Economic Dynamics and Control, 2011, vol. 35, issue 5, 641-658

Abstract: We study the coevolution of networks and action choices in a Prisoners' Dilemma. Agents in our model learn about both action choices and choices of interaction partners (links) by imitating successful behavior of others. The resulting dynamics yields outcomes where both cooperators and defectors coexist under a wide range of parameters. Two scenarios can arise. Either there is "full separation" of defectors and cooperators, i.e. they are found in two different, disconnected components. Or there is "marginalization" of defectors, i.e. connected networks emerge with a center of cooperators and a periphery of defectors.

Keywords: Game; theory; Cooperation; Imitation; learning; Network; formation (search for similar items in EconPapers)
Date: 2011
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Related works:
Working Paper: Cooperation through Imitation and Exclusion in Networks (2009) Downloads
Working Paper: Cooperation through Imitation and Exclusion in Networks (2009) Downloads
Working Paper: Cooperation through Imitation and Exclusion in Networks (2007) Downloads
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Journal of Economic Dynamics and Control is currently edited by J. Bullard, C. Chiarella, H. Dawid, C. H. Hommes, P. Klein and C. Otrok

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