1. SKEMA Business School – University Côte d'Azur, 5 Quai Marcel Dassault, 92150 Suresnes (France) Bergamo Italy
2. Michele Meoli, Department of Management Information and Production Engineering University of Bergamo Bergamo via Pasubio 7b, 24044, Dalmine (BG) Italy
3. Department of Management University of Bergamo via dei Caniana 2 Bergamo 24127 Italy