1. Business Economics Group Wageningen University Wageningen Netherlands
2. European Commission Joint Research Centre (JRC) Seville Spain
3. Faculty of Economic Sciences University of Warsaw Warsaw Poland
4. Carey Business School, Department of Environmental Health and Engineering Johns Hopkins University Baltimore Maryland USA
5. Department of Food, Agricultural, and Resource Economics University of Guelph Guelph Canada
6. Department of Applied Economics and Statistics University of Delaware Newark Delaware USA
7. Department of Food and Resource Economics University of Copenhagen Copenhagen Denmark
8. Department of Environmental Economics Osnabrueck University Osnabrueck Germany
9. Department of Economics Swedish University of Agricultural Sciences Uppsala Sweden