1. Department of Economics, Engineering, Society and Business Organization (DEIM), University of Tuscia, Via del Paradiso 47, 01100 Viterbo, Italy
2. Departamento de Economía de la Empresa, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 48, 30203 Cartagena, Spain
3. Economics and Policy Group, Department of Agricultural Sciences, BAT-Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples “Federico II” Via Università, 96-80055 Portici, Italy
4. Agricultural and Food Economics, Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via San Camillo del Lellis snc-, 01100 Viterbo, Italy