Theory commonly posits agents who care both for the level of provision of a public good and the extent to which they …

. In the model agents receive heterogeneous utility from pure and impure altruism (Andreoni 1989) that permits warm glow to … vary between monetary donations and volunteering, thus allowing preferences for impure altruism to rationalize inefficient … allocation decisions. We define a measure of the price of impure altruism as the additional proportion of income sacrificed by a …

incentive compatible, is costly and time consuming, making it infeasible in many settings. We combine standard altruism and warm … altruism and provide an alternative method for collecting warm glow preferences. …

exhaust the matching funds, so their donation is not pivotal to obtaining matching funds. We develop a theory of how beliefs … about peers' donations affect one's own likelihood of donation. We test our theory using novel "threshold match" treatments …

" of prosocial behavior to shed light on this trend, which reflects a complex interplay of genuine altruism, social or self …

We develop a theory of prosocial behavior that combines heterogeneity in individual altruism and greed with concerns … is shown to potentially reduce social welfare. -- altruism ; rewards ; motivation ; esteem ; crowding out …

hypothesized and examined in theory and experiments, the literature is largely silent on the comparison. I report the results of a …