1. Professor and Co-Director of the Agribusiness, Food, and Consumer Economics Research Center, Department of Agricultural Economics, Texas A&M University, 2124 TAMU, 600 Kimbrough Dr., College Station, TX 77845-2124, USA.
2. Regents Professor and Co-Director of the Agribusiness, Food, and Consumer Economics Research Center, Department of Agricultural Economics, Texas A&M University, 2124 TAMU, 600 Kimbrough Dr., College Station, TX 77845-2124, USA.