Prices negotiated between payers and providers affect a health insurance contract's value via enrollees' cost-sharing and self-insured employers' costs. However, price variation across payers is hard to observe. We measure negotiated prices for hospital-payer pairs in Massachusetts and...

I use the Medicare Part D prescription drug insurance market to examine the dynamics of firm interaction with consumers on an insurance exchange. Enrollment data show that consumers face switching frictions leading to inertia in plan choice, and a regression discontinuity design indicates...

We examine how the articulation of government policy affects behavior. Our experiment compares a government mandate to purchase health insurance to a financially equivalent tax on the uninsured. Participants report their probability of purchasing health insurance under one of the two...

Standardization of complex products is touted as improving consumer decisions and intensifying price competition, but evidence on standardization is limited. We examine a natural experiment: the standardization of health insurance plans on the Massachusetts Health Insurance Exchange....