Using micro data on virtually all of the drugs and diseases of over 500,000 people enrolled in Puerto Rico's Medicaid program, we examine the impact of the vintage (original FDA approval year) of drugs used to treat a patient on the patient's 3-year probability of survival, controlling for...

Two key issues for public insurance policy are the effect of insurance status on medical treatment, and the implications of insurance-induced treat- ment differentials for health outcomes. We address these issues in the context of the treatment of childbirth, using Vital Statistics data on every...

This paper uses data on health insurance choices by employees of Harvard University to examine the effect of alternative pricing rules on market equilibrium. In the mid-1990s, Harvard moved from a system of subsidizing more expensive insurance to a system of contributing an equal amount to each...