We conducted a field experiment with a charitable group to investigate whether giving the donor an option to write a …

and can improve individual and public welfare. This paper presents the results of a controlled experiment that was … designed to evaluate not only the effectiveness of a default manipulation on decision making in a charity giving context, but … experiment, and those who kept participating were less likely to pledge again. This, along with high attrition among nudged …

context of middle-range donations which are relevant in practice. In our randomized field experiment, opera visitors received …

contributions. In our randomized field experiment, opera visitors received solicitation letters asking to support a social youth …

How do social media affect the success of charitable fundraising? We use individual-level longitudinal data and …'s contacts. However, results from a field experiment where broadcasting of the initial pledges was randomized suggest that the … observational findings were likely due to homophily rather than genuine social contagion effects. The experiment also shows that …

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 …