Konrad, Kai A.; Morath, Florian - Volkswirtschaftliche Fakultät, … - 2012
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. …