1. Miguel Torga Institute of Higher Education & NECE-UBI—Research Unit in Business Sciences, University of Beira Interior, Estrada do Sineiro, s/n, 6200-209 Covilhã, Portugal
2. Research on Economics, Management and Information Technologies, REMIT, Portucalense University, 4200-072 Porto, Portugal
3. School of Technology and Management, Viana do Castelo Polytechnic Institute, Av. Atlântico, 4900-348 Viana do Castelo, Portugal