| Rank | Institution | 1 | Department of Economics, University of Oklahoma, Norman |
| Rank | Author | Affiliated with (in this region) |
| 1. | Kevin Grier | Department of Economics, University of Oklahoma, Norman |
| 2. | Benjamin David Keen | Department of Economics, University of Oklahoma, Norman |
| 3. | Jayson L. Lusk | Department of Agricultural Economics, Oklahoma State University, Stillwater |
Credits: