We present evidence from a natural field experiment involving nearly 100,000 individuals on the effects of offering economic incentives for blood donations. Subjects who were offered economic rewards to donate blood were more likely to donate, and more so the higher the value of the rewards....

A large economics literature seeks to understand the reasons why individuals make charitable contributions. Fundamental features of most models of charitable giving are the inclusion of externalities induced by other agents and the Lancasterian characteristics approach to specifying utility...

This paper evaluates the prospects for the emerging field of neuroeconomics to shed light on traditional positive and normative economic questions. It argues that the potential for meaningful contributions, though often misunderstood and frequently overstated, is nevertheless present.

We use two different approaches to measure intertemporal preferences. First we employ the classical method of inferring preferences from a series of choices (subjects choose between $X now or $Y in D days). Second we adopt the novel approach of inferring preferences using only response time data...

Risky health behaviors such as smoking, drinking alcohol, drug use, unprotected sex, and poor diets and sedentary lifestyles (leading to obesity) are a major source of preventable deaths. This chapter overviews the theoretical frameworks for, and empirical evidence on, the economics of risky...

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 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...

If being asked to give to charity stimulates an emotional response, like empathy, that makes giving difficult to resist, a natural self-control mechanism might be to avoid being asked in the first place. We replicate a result from a field experiment that points to the role of empathy in giving....

In an attempt to alleviate the shortfall in organs and bone marrow available for transplants, many U.S. states passed legislation providing leave to organ and bone marrow donors and/or tax benefits for live and deceased organ and bone marrow donations and to employers of donors. We exploit...