.g., discounting, risk aversion and altruism) and most cultural traits, social norms, and ideological tenets ( e.g., attitudes towards …

To understand the "pure" incentives of altruism, economic laboratory research on humans almost always forbids … communication between subjects. In reality, however, altruism usually requires interaction between givers and receivers, which … altruism are built on human sociality. We experimentally examine communication in which one subject allocates $10 between …

awareness of the empathy-altruism link, rather than pernicious social costs of fundraising …

economic incentives for blood donations. Subjects who were offered economic rewards to donate blood were more likely to donate … the location of their donations towards the drives offering rewards, and modify their temporal donation schedule leading … to a short-term reduction in donations immediately after the reward offer was removed. Although offering economic …

This paper presents a model in which anonymous charitable donations are rationalized by two human tendencies drawn from … spending crowds out the charity that ensues from these forces only modestly. Moreover, people's donations tend to rise when … others donate. In some equilibria of the model, poor people give little because they expect donations to come mainly from …

. Second, we can reject the pure altruism model of giving. Third, we find that public good provision is maximized in both the …

donations yield greater explanatory power than the standard model of impure altruism … consumption and donations among individuals. We also conduct an original experiment that enables nonparametric tests of many …

altruism. We show that a wide range of results are possible, from positive taxes to subsidies, depending on redistributive …