There is by now ample evidence from laboratory experiments that individuals exhibit "prosocial" or "other-regarding" preferences. However, a key question is whether the importance of other-regarding preferences documented in the laboratory can be readily generalized to draw conclusions about the...

This paper makes use of two field experiments to explore individual effort responses to gifts. We extend the literature by looking at nonfinancial gifts and gifts that combine financial and nonfinancial elements with or without adding a “personal touch.” We find that non-pecuniary gifts that...

We measure a specific form of other-regarding behavior, costly cooperation with an anonymous other, among 645 subjects at a trucker training program in the Midwestern US. Using subjects' second-mover strategy in a sequential form of the Prisoners' Dilemma, we categorize subjects as: Free Rider,...

There is a longstanding concern that material rewards might undermine pro-social motivations, thereby leading to a decrease in blood donations. This paper provides an empirical test of how material rewards affect blood donations in a three-month large-scale field experiment and a fifteen-month...

This field experiment quantifies the impact of social norm information on the demand for indoor temperature. Based on high-frequency data from indoor temperature monitors, we provide participating households with a comparison of average temperature in their apartments relative to that measured...

Prior work has demonstrated that prosocial incentives - where individuals' effort benefits a charitable organization - can be more effective than standard incentives, particularly when the stakes are low. Yet, little is known about the effectiveness of prosocial incentives on people's decisions...

Competitive bonuses are commonly used to promote higher productivity in the workplace. Yet, these types of incentives could have negative spillovers on coworkers' prosocial behavior in subsequent tasks. To investigate this question, we conduct a lab-in-the-field experiment in Ghana. In a...