Affiliation: | 1. Department of International Relations and Public Administration, School of Economics and Management, University of Minho, Braga, Portugalatavares@eeg.uminho.pt;3. Centro de Investigación y Docencia Económicas, CIDE – Región Centro, Aguascalientes, México;4. School of Communication, Administration and Tourism, Bragan?a Polytechnic Institute, Bragan?a, Portugal |