The overuse of medical services including antibiotics is often blamed on Physician Induced Demand. But since this theory is about physician motivations, it is difficult to test. We conduct an audit study in which physician financial incentives, beliefs about what patients want, and desires to...

The overuse of medical services including antibiotics is often blamed on Physician Induced Demand. But since this theory is about physician motivations, it is difficult to test. We conduct an audit study in which physician financial incentives, beliefs about what patients want, and desires to...

This paper investigates the crowding-out effect of formal insurance on informal risk-sharing arrangements via theory and laboratory experiment. Our model and simulation predict that the crowding out of private transfers is often more than one-for-one and will reduce the total risk coverage....

Bilateral gift exchange often benefits the gift-giver, but what is the effect of multilateral gift exchange? This study employs a two-giver-one-recipient real task gift exchange game to investigate the effect of gift competition. We show that gift competition hurts givers and benefits...

This paper investigates whether and how the crowding-out effect of formal insurance on informal risk sharing is mitigated by social preference change. We design a lab experiment in which formal insurance is introduced and removed unexpectedly in a repeated risk-sharing game. We find evidence of...