1. Kenton J. Johnston () is an associate professor of health management and policy at Saint Louis University, in St. Louis, Missouri.
2. Hefei Wen is an assistant professor in the Division of Health Policy and Insurance Research, Department of Population Medicine, Harvard Medical School and the Harvard Pilgrim Health Care Institute, in Boston, Massachusetts.
3. Karen E. Joynt Maddox is an assistant professor of medicine at the Washington University School of Medicine and codirector of the Center for Health Economics and Policy at the Institute for Public Health, Washington University in St. Louis, in St. Louis, Missouri.
4. Harold A. Pollack is the Helen Ross Professor in the School of Social Service Administration, University of Chicago, in Chicago, Illinois.