1. David C. Grabowski ( ) is a professor in the Department of Health Care Policy, Harvard Medical School, in Boston, Massachusetts.
2. Nina R. Joyce is a postdoctoral fellow in the Department of Health Care Policy, Harvard Medical School.
3. Thomas G. McGuire is a professor of health economics in the Department of Health Care Policy, Harvard Medical School.
4. Richard G. Frank is the Margaret T. Morris Professor of Health Economics in the Department of Health Care Policy, Harvard Medical School.