There is a widespread belief among fundraisers that solicitations by volunteers will be more effective than solicitations by paid workers. To explore whether this belief has merit, we conduct a door-to-door fundraising experiment in which solicitors communicate their compensation status to...

When choices are inconsistent due to behavioral biases, there is a theoretical debate about whether the structure of a model is necessary for providing precise welfare guidance based on those choices. To address this question empirically, we use standard data sets from the lab and field to...

Calling to thank donors is a key fundraising strategy in the non-profit sector. Yet the effectiveness of these calls remains untested. We report on field experiments with public television stations and a national non-profit in which new donors were randomized to receive a thank-you call or not....