1. SKEMA Business School, Université Côte d’Azur (GREDEG), France
2. OFCE, Sciences Po Paris, France
3. University of L’Aquila, L'Aquila, Italy
4. Science Policy Research Unit (SPRU), University of Sussex, Falmer, England
5. Laboratory of Economics and Management (LEM), Pisa, Italy
6. Ruhr University Bochum, Bochum, Germany