1. CEFAGE-UBI Research Center, Department of Management, Instituto Europeu de Estudos Superiores (IEES), R. Universitária 200, Medelo, Portugal
2. CEFAGE-UBI Research Center, Department of Management and Economics, Universidade da Beira Interior, 6200-209 Covilhã, Portugal
3. CETRAD Research Center, University of Trás-os-Montes and Alto Douro–UTAD, 5000-801 Vila Real, Portugal