We test how donors respond to new information about a charity's effectiveness. Freedom from Hunger implemented a test … effectiveness, whereas small prior donors decrease their giving. We motivate the analysis and experiment with a theoretical model … that highlights two predictions. First, larger gift amounts, holding education and income constant, is a proxy for altruism …

their effect across charity space and time. We find that major fundraising appeals lift total donations, but surprisingly …Fundraising interventions may lift donations and/or shift their composition and timing, making it important to study …

motivated only by pure altruism will work at a relatively high wage for the for-profit firm and then make charitable … sensitive to warm glow (“impure altruism”) depends on her income level. While the presence of “warm glow” feelings would seem to … clearly benefit charitable organizations, we show that impure altruism can create distortions in labor market choices. In some …

their effect across charity space and time. We find that major fundraising appeals lift total donations, but surprisingly …Fundraising interventions may lift donations and/or shift their composition and timing, making it important to study …

their effect across charity space and time. We find that major fundraising appeals lift total donations, but surprisingly …Fundraising interventions may lift donations and/or shift their composition and timing, making it important to study …

In different treatments of an intergenerational common resource experiment, monetary payoff maximization by each …

donations. We also primed between-subjects the emphasis on the donation value to the charity (pure altruism) or the sacrifice to … the donor (impure warm-glow altruism). Consistent with the model's predictions, the experiment shows that priming pure … volunteering time to donating money when monetary donations are, ceteris paribus, more efficient for providing resources to charity …