1. Katherine Baicker ( ) is a professor of health economics in the Department of Health Policy and Management at the Harvard School of Public Health, in Boston, Massachusetts.
2. Mark Shepard is a doctoral student in economics at Harvard.
3. Jonathan Skinner is the James O. Freedman Professor in the Department of Economics at Dartmouth and a professor at the Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, in Hanover, New Hampshire.