Roberto Camagni is Professor of Urban Economics at the Politecnico di Milano, Italy. He is a Past-President of the European Regional Science Association, and of GREMI . He is the author of many scientific papers, and a textbook in Urban Economics, published in Italian, French, and Spanish.Roberta Capello is a Professor in Regional Economics at the Politecnico di Milano, Italy. She is a Past-President of the Regional Science Association International . She is the editor in chief of Papers in Regional Science, and of the Italian Journal of Regional Science. She is the author of many scientific papers, and the editor of Territorial Patterns of Innovation: An Inquiry on the Knowledge Economy in European Regions (Routledge, 2013).