Many goods and services can be readily provided through a series of unconnected transactions, but in health care close coordination over time and within care episodes improves both health outcomes and efficiency. Close coordination is problematic in the US health care system because the...

Over the last few decades, health care services in the United States have become more centralized. We study how the loss of hospital-based obstetric units in over 400 rural counties affect maternal and infant health via a difference-in-differences design. We find that closures lead to...

State governments face the classic "make or buy" decision for the provision of Medicaid services. Over the past two decades, the majority of states have outsourced the provision of social health insurance through Medicaid Managed Care (MMC) programs. These programs have been extensively studied...

The Medicare Part D Prescription Drug Plan represents the most significant privatization of the delivery of a public insurance benefit in recent history, with dozens of private insurers offering a wide range of products with varying prices and product features; the typical elder had a choice of...

In many federally-subsidized insurance markets, insurers are subsidized on the basis of enrollee characteristics; in principle, subsidies that are "risk adjusted" in this way compensate insurers for ex ante differences in expected cost. Between 2010 and 2011, the subsidies in Medicare Part D...

A new survey of 745 small businesses shows little change in the size distribution of businesses between 2012 and 2016, except among businesses with 40-74 employees, in a way that is closely related to whether they offer health insurance coverage. Using measures of both size and voluntary...