1. Department of Economics and Management, University of Padova, Via del Santo 33, Padova 35123, Italy
2. Department of Human Geography and Planning, Utrecht University, Vening Meinesz building A, Princetonlaan 8a, 3584 CB Utrecht, The Netherlands
3. Stavanger Centre for Innovation Research, UiS Business School, University of Stavanger, Norway
4. National Research University Higher School of Economics, Moscow, Russia