1. Department of Agricultural and Forestry scieNcEs (D.A.F.N.E.), Tuscia University, Viterbo, Italy
2. Grumets Research Group, Department of Geography, Universitat Autònoma de Barcelona, Cerdanyola del Vallès (Barcelona), Spain
3. Department of Political, Social and Communication Sciences, University of Salerno, Fisciano, Italy
4. Department of Social and Economic Sciences, Sapienza University of Rome, Rome, Italy
5. Council for Agricultural Research and Economics (CREA), Rome, Italy