Institution: | (1) Department of Agricultural Economics, Texas A&M University, 2124 TAMU, College Station, TX 77843-2124, USA (e-mail: alove@tamu.edu.), US;(2) U.S. Customs, Department of the Treasury, Laredo, TX, 78045 USA, US;(3) Department of Agricultural Economics, Washington State University, TX, 99164-6210 USA, US |