Hwang, Sung Ha; Bowles, Samuel - Department of Economics, University of Massachusetts-Amherst - 2008
punishment costs. The negative effect of altruism on cooperation and material payoffs is greater the stronger is the reciprocity … additive. But this need not be the case. Behavioral experiments find that if reciprocity-minded subjects feel hostility towards … embodying both reciprocity and altruism we show that unconditional altruism towards other members attenuates the punishment …