Health care markets often lack a market force because the presence of health insurance undermines price signals. Patients have little incentive to shop for low-priced alternatives because they do not bear the full cost of their health care consumption. In turn, producers lack incentives to...

We examine the effects of patient cost-sharing on adolescents' healthcare utilization and out-of-pocket medical expenditures by exploiting the healthcare reform in South Korea that lowered the coinsurance rate for inpatient care from 20% to 5% for children under 16. We apply a...

Two in five Americans have medical debt, nearly half of whom owe at least $2,500. Concerned by this burden, governments and private donors have undertaken large, high-profile efforts to relieve medical debt. We partnered with RIP Medical Debt to conduct two randomized experiments that relieved...