1. Miguel Torga Institute of Higher Education, NECE—Research Center for Business Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal
2. NECE-UBI—Research Unit in Business Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal
3. REMIT—Research on Economics, Management and Information Technologies, Portucalense University, 4200-072 Porto, Portugal