1. Department of Economic Policy Catholic University of the Sacred Heart Milano Italy
2. BRICK Collegio Carlo Alberto Torino Italy
3. ICRIOS Bocconi University Milano Italy
4. Institute of Economics Sant'Anna School of Advanced Studies Pisa Italy
5. Maastricht Economic and Social Research Institute on Innovation and Technology UNU‐MERIT Maastricht The Netherlands
6. Forschungsinstitut zur Zukunft der Arbeit GmbH (IZA) Bonn Germany