1. WEARE: Water, Environmental and Agricultural Resources Economics, Department of Agricultural Economics, University of Cordoba, Campus Rabanales. Ctra N-IV km396. Gregor Mendel Building, E-14071 Córdoba, Spain
2. Department of Economic Analysis, Universidad de Sevilla, Ramón y Cajal 1, 41018 Sevilla, Spain
3. Department of Agricultural and Environmental Science, University of Bari ‘Aldo Moro’, Via Amendola 165/A, Bari 70126, Italy
4. Department of Economics and BRU-IUL, ISCTE-Instituto Universitário de Lisboa, Av. Forças Armadas, 1649-026 Lisboa, Portugal