1. M.V. Lee Badgett is Professor of Economics, University of Massachusetts Amherst, Amherst, Massachusetts, and Distinguished Scholar, Williams Institute, University of California at Los Angeles School of Law, Los Angeles, California.
2. Christopher S. Carpenter is E. Bronson Ingram Professor of Economics, Vanderbilt University, Nashville, Tennessee; Research Fellow, National Bureau of Economic Research, Cambridge, Massachusetts; and Research Fellow, IZA (Institute of Labor Economics), Bonn, Germany.
3. Dario Sansone is Lecturer, University of Exeter Business School, Exeter, United Kingdom; and Research Affiliate, IZA (Institute of Labor Economics), Bonn, Germany. .