. 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 …

to the altruism of donors, these natural experiments help identify heterogeneity in the distributions of the latent … altruism which motivates donors. This study examines gender heterogeneity of volunteer response by blood donors following the … predictions of a model where the distribution of latent altruism has smaller variance among women than men. First, the highest …

.g., charitable giving, is history-dependent. Using a popular policy nudge, the default option, we exogenously vary altruism "now" and … show that giving “now” causes a 66%- 200% increase in the probability of giving "later"; that is, altruism begets altruism …

's common restrictions on the curvature of the decision-makers utility function can dramatically bias the altruism parameter. We … show that this is particularly problematic when comparing altruism between groups with well-documented differences in risk …

jointly elicit risk preferences and preferences for altruism. Consistent with theory, we find that the standard simplifying … assumptions about risk preferences lead to significantly biased estimates of altruism. This is particularly problematic when … comparing altruism across relevant sub-groups, such as gender and wealth, leading to possibly erroneous conclusions about which …

overestimated. -- Incentives ; altruism ; public good provision ; pro-social behavior ; public health …