Evolutionarily stable in-group favoritism and out-group spite in intergroup conflict
We study conflict between two groups of individuals. Using Schaffer`s (1988) concept of evolutionary stability we provide an evolutionary underpinning for in-group altruism combined with spiteful behavior towards members of the rival out-group. We characterize the set of evolutionarily stable combinations of in-group favoritism and out-group spite and find that an increase in in-group altruism can be balanced by a decrease in spiteful behavior towards the out-group.
|Date of creation:||2012|
|Date of revision:|
|Publication status:||Published in Journal of Theoretical Biology 306(2012): pp. 61-67|
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- Dekel, Eddie & Ely, Jeffrey & Yilankaya, Okan, 2004. "Evolution of Preferences," Microeconomics.ca working papers dekel-04-08-13-01-21-07, Vancouver School of Economics, revised 09 Jun 2006.
- Davis, Douglas D & Reilly, Robert J, 1999. " Rent-Seeking with Non-identical Sharing Rules: An Equilibrium Rescued," Public Choice, Springer, vol. 100(1-2), pages 31-38, July.
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