1. Despina, Department of Economics and Statistics, University of Turin, Turin, Italy
2. ICRIOS, Bocconi University, Milan, Italy
3. Department of Economic Policy, Università Cattolica del Sacro Cuore di Milano, Milan, Italy
4. Department of Economics and Political Sciences, University of Aosta Valley, Aosta, Italy
5. Department of Management, Ca' Foscari University of Venice, Venice, Italy
6. City REDI, University of Birmingham, Birmingham, England