1. Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health & Science, 2800 Almada, Portugal
2. Centro de Estudos Internacionais, Instituto Universitário de Lisboa (ISCTE-IUL), 1649-026 Lisbon, Portugal
3. Department of Applied Economics, University of Granada, 18071 Granada, Spain
4. Business Research Unit (BRU-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), 1649-026 Lisbon, Portugal
5. Nova Medical School, Universidade Nova de Lisboa, 1099-085 Lisbon, Portugal