Paul Stoneman is currently an Emeritus Professor at Warwick Business School, University of Warwick, UK, where he was previously a Research Professor. He was formerly a Visiting Professor at Stanford University and a Visiting Fellow at Nuffield College, Oxford. He has acted as an advisor to governments and private sector companies on innovation, productivity, and performance. His research interests centre upon the economics of innovation and technical changes, with a special focus on diffusion. Eleonora Bartoloni is a Senior Researcher at the Lombardy Regional Office of the Italian National Institute for Statistics (ISTAT). She has previously lectured at the University of Parma's Department of Business and Economics, and has undertaken research and teaching collaborations at the Catholic University of the Sacred Heart, Piacenza. Maurizio Luigi Baussola is Director of the Department of Economic and Social Sciences, Catholic University of the Sacred Heart, Piacenza, where he was previously Professor of Economic Policy.