Hwang, Sung-Ha; Bowles, Samuel - Research Institute for Market Economy, Sogang University - 2011
cooperation may be less than additive. Using a utility function embodying both reciprocity and altruism we show that unconditional … altruism attenuates the punishment motive and thus may reduce the level of punishment in?icted on defectors, resulting in lower … levels of contribution. Increases in altruism may also reduce the level of bene?ts from the public project net of …