The purpose of this paper is to evaluate the Experimental Housing Allowance Program (EHAP). My focus is on what the experimental data have taught us that could not have been learned from more traditional sources of information. I review the major problems that confronted investigators using...

Why do individuals volunteer their time even when recipients receive far less value than the donor's opportunity cost? Previous models of altruism that focus on the overall impact of a gift cannot rationalize this behavior, despite its prevalence. We develop a model that relaxes this assumption,...

We conduct a laboratory experiment to examine how third-party ratings impact charity choice and donative behavior, particularly in regards to preferences for local charities. Subjects are given a menu of ten charities, with a mix of local and non-local organizations included. We vary whether...

The use of directed giving - allowing donors to target their gifts to specific organizations or functions - is pervasive in fundraising, yet little is known about its effectiveness. We conduct a field experiment at a public university in which prospective donors are presented with either an...

We use data from a field experiment at Kiva, the online microfinance platform, to examine the role of transactions costs and social distance in decision-making. Requests for loans are either written in English or another language, and our treatment consists of posting requests in the latter...