1. Assistant Professor, Department of Economics and Business, University of Almería, Agrifood Campus of International Excellence, ceiA3, Ctra. Sacramento s/n, 04120 Almería, Spain.
2. Associate Professor, Department of Economics and Business, University of Almería, Agrifood Campus of International Excellence, ceiA3, Ctra. Sacramento s/n, 04120 Almería, Spain.