interaction of psychological and economic incentives from academic curiosity to a bona fide academic field. One recent area of … study within this genre that has sparked interest and debate revolves around the "hidden costs" of conditional incentives … to advance our understanding of the economics of charity and test if such "costs" exist in the field. This approach …

We present evidence from a natural field experiment involving nearly 100,000 individuals on the effects of offering … economic incentives for blood donations. Subjects who were offered economic rewards to donate blood were more likely to donate … incentives, combining all of these effects, positively and significantly increased donations, ignoring individuals who took …

laboratory experiment to cleanly fix beliefs about the person's likelihood of being pivotal in reaching a donation threshold that …

one's own contributions (impure altruism) and others contributions (pure altruism). Using multiple data sets from Germany …

We present a dictator game experiment where the recipients are local charities that serve the poor. Donors consist of … firm, Knowledge Networks. We randomly manipulate the perceived race and worthiness of the charity recipients by showing … respondents an audiovisual presentation about the recipients. The experiment yields three main findings. First, we find …

experiment and altruism largely explains why people give …The extant experimental design to investigate warm glow and altruism elicits a single measure of crowd-out. Not … recognizing that impure altruism predicts crowd-out is a function of giving-by-others, this design's power to reject pure altruism …

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

Theories abound for why individuals give to charity. We conduct a field experiment with donors to a Yale University … theories, we conduct a laboratory experiment with undergraduates, and find no evidence to support the alternative, altruistic …

awareness of the empathy-altruism link, rather than pernicious social costs of fundraising … experiment during the Salvation Army's annual campaign. The familiar bell-ringers were placed at one or both of two main …