A substantial experimental literature suggests that a personal solicitation is an effective way to induce people to make charitable donations. We examine whether this result generalizes to a non-experimental setting. Specifically, we estimate the effect of a marginal personal solicitation using...

Our main findings are: 1) Individuals who took out student loans are less likely to make a gift, other things being the same. We conjecture that this phenomenon is caused by an "annoyance effect" -- alumni resent the fact that they are burdened with loans. 2) Scholarship aid reduces the size of...