We estimate the effect of a marginal personal solicitation after receiving two to four non-personal solicitations using observational data on alumni giving at an anonymous research university, which we refer to as Anon U. At Anon U, volunteers use lists provided by the Development Office to...

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...

This paper uses a unique data set to assess whether donors' contributions to a nonprofit institution are affected by the perception that the institution might confer a reciprocal benefit. We study alumni contributions to an anonymous research university. Inter alia, the data include information...