1. Crawford School of Public Policy, Australian National University, Acton, Australia
2. Department of Economics, College of Business, The University of Texas at Arlington, Arlington, TX, USA
3. School of Business and Public Administration, California State University, Bakersfield, CA, USA
4. Department of Economics, Spears School of Business, Oklahoma State University, Stillwater, OK, USA
5. Department of Agricultural and Resource Economics, North Carolina State University, Raleigh, NC, USA