1. Department of Economics, Management and Statistics, University of Milan-Bicocca , Piazza Ateneo Nuovo 1, Milan 20126, Italy . e-mail: marco.guerzoni@unimib.it
2. Bureau d'économie théorique et appliquée (BETA), Université de Strasbourg , 61, Avenue de la Forêt Noire, Strasbourg 67085, France
3. Department of Management, University of Venice-Ca’ Foscari , Dorsoduro 3246, Venezia 30123, Italy . e-mail: massimiliano.nuccio@unive.it
4. Institute of Economics, Scuola Superiore Sant'Anna , Piazza Martiri della Libertà, 33, Pisa 56127, Italy . e-mail: federico.tamagni@santannapisa.it