Evolutionarily stable in-group favoritism and out-group spite in intergroup conflict.
نویسندگان
چکیده
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.
منابع مشابه
Evolutionarily stable in-group favoritism and out-group spite in intergroup conict
We study conict between two groups of individuals. Using Schaffers (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 nd that an increase in in-group altruism ca...
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ورودعنوان ژورنال:
- Journal of theoretical biology
دوره 306 شماره
صفحات -
تاریخ انتشار 2012