1. Department of Economics and Statistics “Cognetti de Martiis,” University of Turin, Lungo Dora Siena 100A, 10153 Turin, Italy
2. Collegio Carlo Alberto, via Real Collegio 30, 10024 Moncalieri, Turin, Italy
3. Dondena Centre for Research on Social Dynamics and Public Policy, Bocconi University, via Guglielmo Rontgen 1, 20136 Milan, Italy
4. Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua, via Venezia 14, 35131 Padua, Italy