1. Peter Berg is a Professor of Employment Relations, School of Human Resources and Labor Relations, Michigan State University. Mary K. Hamman is an Associate Professor of Economics, Department of Economics, University of Wisconsin La Crosse. Matthew Piszczek is an Assistant Professor of Management, Mike Ilitch School of Business, Wayne State University. Christopher J. Ruhm is a Professor of Public Policy & Economics, Frank Batten School of Leadership and Public Policy, University of Virginia