1. Department of Economics, Management, Industrial Engineering and Tourism, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
2. Research Unit on Governance, Competitiveness and Public Policies, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
3. INESC TEC—Institute for Systems and Computer Engineering, Technology and Science, 4200-465 Porto, Portugal