Institution: | 1. Department of Economics, Roma Tre University, Via Silvio d''Amico 77, 00145 Roma, Italy;2. GREDEG, CNRS and University of Nice Sophia Antipolis, 250, rue Albert Einstein, 06560, Valbonne, France;3. BRICK (Bureau of Research on Innovation, Complexity and Knowledge), Collegio Carlo Alberto, Torino, Italy |