1. ISEG (Lisbon School of Economics and Management), Universidade de Lisboa, Lisbon, Portugal
2. Advance/ISEG (Lisbon School of Economics and Management), Universidade de Lisboa, Lisbon, Portugal
3. NOVA Information Management School (NOVA IMS), Universidade Nova de Lisboa, Portugal
4. INESC-ID, Instituto Superior Técnico, University of Lisbon,
Portugal