1. Food and Resource Economics Department University of Florida Gainesville Florida USA
2. Department of Forest Resources and Environmental Conservation Virginia Tech Blacksburg Virginia USA
3. Department of Plant Science The Pennsylvania State University University Park Pennsylvania USA
4. Department of Agricultural and Applied Economics Virginia Tech Blacksburg Virginia USA
5. Willis Blackwood Professor and Head, Blackwood Department of Real Estate Virginia Tech Blacksburg Virginia USA
6. Department of Ecosystem Science and Management The Pennsylvania State University University Park Pennsylvania USA
7. Division of Earth and Environmental Sciences Los Alamos National Laboratory Los Alamos New Mexico USA