Global ratings, such as those based on consumer satisfaction, are a commonly used form of report on the performance of health plans and providers. A simple averaging of the global rating by plan members leads to a problem: it gives a plan greater incentives to improve services used by low-cost...

In a recent report, the Institute of Medicine (IOM) defines a health service disparity between population groups to be the difference in treatment or access not justified by the differences in health status or preferences of the groups. This paper proposes an implementation of this definition...

This paper develops and implements a statistical methodology to account for the equilibrium effects (aka adverse selection) in design of risk adjustment formula in health insurance markets. Our setting is modeled on the situation in Medicare and the new state Exchanges where individuals sort...

Quality reports or profiles of health care providers are inevitably based on only a measurable subset of the ``outputs" of the organization. Hospitals, for example, are being profiled on their mortality in the cardiac area but not in some other areas where mortality does not seem to be the...