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 …

giving to formal charities and beggars. Results suggest that both impure altruism and inequality aversion positively …

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 inflicted on defectors, resulting in … lower levels of contribution. Increases in altruism may also reduce the level of benefits from the public project net of …

theory in the context of public goods provision also in sizable groups, because its explanatory power with respect to this … central problem in the evolution of human cooperativeness and altruism might have been substantially underrated. …

-interest, providing strong evidence for pocketbook voting. However, social preferences like altruism, public good considerations and …

in unequal groups does not accord with models of inequality aversion or egocentric altruism which require an equal …