1. Spears School of Business, Norman and Suzanne Myers Endowed Chair for Excellence in Business Administration, Richard W. Poole Professorship for Excellence, 370 Business Building, Oklahoma State University, Stillwater, Oklahoma, USA
2. Department of Economics, Finance and Legal Studies, The University of Alabama, Tuscaloosa, Alabama, USA
3. Department of Economics, Finance and Legal Studies, The University of Alabama, Tuscaloosa, Alabama, USA