1. Lecturer, Food and Resource Economics Department, University of Florida 110240, Gainesville, FL 32611
2. Professor and Chair, Food and Resource Economics Department, University of Florida 110240, Gainesville, FL 32611
3. Ph.D., Food and Resource Economics Department, University of Florida 110240, Gainesville, FL 32611
4. Professor, Food and Resource Economics Department, University of Florida 110240, Gainesville, FL 32611
5. Associate Professor, Department of Agricultural Economics, CEIGRAM. Universidad Politécnica de Madrid Avda. Puerta de Hierro, 2 28040 Madrid Spain
6. Professor, Department of Economics and Social Sciences, Institute of Marketing & Innovation, University of Natural Resources and Life Sciences 1180 Vienna Austria