Affiliation: | 1. Unit of Agro-Food Economics and Natural Resources, Centre for Agro-Food Research and Technology (CITA), Avenida Montañana, 930, 50059 Zaragoza, Spain;2. University Loyola Andalusia, Department of Economics, Calle Energía Solar, 1, 41014, Palmas Altas, Seville, Spain;3. Department of Agriculture and Agricultural Economics, Faculty of Veterinary Sciences, University of Zaragoza, Calle Miguel Servet, 177, 50013 Zaragoza, Spain |