Affiliation: | 1. Economics, Finance and Legal Studies, University of Alabama, 35487-0224, Tuscaloosa, AL 2. Economics, Auburn University, 36849, AL 3. Mathematics, San Francisco State University, 94132, San Francisco, CA 4. Department of Economics and Finance, University of Mississippi, 38677, University, MS, U.S.A. 5. Economics, University of Arizona, 85721, Tucson, AZ
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