1. Harvard Pilgrim Health Care Institute, Division of Health Policy and Insurance Research, Department of Population Medicine, Harvard Medical School, Boston, Massachusetts
2. School of Public Affairs, Department of Public Administration and Policy, American University, Washington, DC
3. O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana
4. College of Public Health, Department of Health Management & Policy, University of Kentucky, Lexington, Kentucky
5. National Bureau of Economic Research, Cambridge, Massachusetts
6. Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland