We investigate the determinants of giving in a lab-in-the-field experiment with large stakes. Study participants in … that must be in cash. Qualitative post-experiment responses suggest that this effect is driven by a desire to control how …

We present evidence from a natural field experiment designed to shed light on the efficacy of fundraising schemes in … opera attendees a letter describing a charitable fundraising project organized by the opera house. Recipients were randomly …

experiment randomly assigning participants to four raffle treatments to examine the effectiveness of alternative incentive … revenue gains are available on both margins. Our experiment, and others like it, illustrates the power of field experiments to … inform fundraising choices …

We study social preferences in the form of altruism using data on 959 interactions between random commuters at selected …; and (iv) an age effect, with mature-aged people eliciting a higher degree of altruism …

We study how website defaults affect consumer behavior in the domain of charitable giving. In a field experiment that …

field experiment that compares the principal-first and agent-first orderings to each other and a gift-less control …

readership, therefore guaranteeing maximum diffusion. We conduct a field experiment with the Italian information site lavoce …

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 …