In this study, we consider how gift-exchange and bonus systems function in a natural field setting by measuring the effort response of participants to non-monetary gifts over time. Our field experiment tests the difference in effort response to unconditional gifts delivered immediately, promised...

We examine the correlation between the generosity of clinicians – as measured in a laboratory experiment – and the quality of care in their normal practices under three different intrinsic incentive schemes. Specifically, we observe clinicians in their normal work environment, when a peer...

We study if and how social preferences extend to risky environments. We provide experimental evidence from different versions of dictator games with risky outcomes and establish that preferences that are exclusively based on ex post or on ex ante comparisons cannot generate the observed...

We study if and how social preferences extend to risky environments. By providing experimental evidence on different versions of “dictator games” with risky outcomes, we establish that social preferences of players who give in standard dictator games cannot be described solely by concerns...

Both governments and private for-profit markets have been disappointing in meeting the needs of the African poor for health care. NGO services provide a much more attractive alternative for this clientele, despite the fees they charge. They do so because they represent an institutional solution...

This study uses a controlled experiment to explore whether there are gender differences in selecting into competitive environments across two distinct societies: the Maasai in Tanzania and the Khasi in India. One unique aspect of these societies is that the Maasai represent a textbook example of...

Gender differences in competitive behavior have received much attention, demonstrating a systematic gap between males' and females' tendencies to compete. Theories predict a biological factor linked to an evolutionary response to the different paths to reproductive success for men and women....

The most important issue facing experimental economists is the generalizability of lab results. This letter examines more than 1200 doctor/patient consultations, in which scrutiny and duration of treatment were varied. We show that scrutiny has an important but short-lived effect.

This paper documents the quality of medical advice in low-income countries. Our evidence on health care quality in low-income countries is drawn primarily from studies in four countries: Tanzania, India, Indonesia, and Paraguay. We provide an overview of recent work that uses two broad...

This study uses a controlled experiment to explore whether there are gender differences in selecting into competitive environments across two distinct societies: the Maasai in Tanzania and the Khasi in India. One unique aspect of these societies is that the Maasai represent a textbook example of...