1. Dipartimento di Economia e Management, Università degli Studi di Brescia, Brescia, Italy
2. Fondazione Eni Enrico Mattei (FEEM), Milano, Italy
3. GREDEG-CNRS Université Côte d'Azur, France
4. Institute of Economics, Scuola Superiore Sant’Anna, Pisa, Italy
5. Department of Economics, University of Kiel, Kiel, Germany
6. Sciences Po, OFCE, Paris, France
7. SKEMA Business School, Sophia-Antipolis, France