Joël-Thomas RAVIX is Professor of Economics at the University of Côte d’Azur and Member of the GREDEG-CNRS (Research Group in Law, Economics and Management), France.Marc DESCHAMPS is Associate Professor in Economics at the University of Bourgogne-Franche-Comté and Member of CRESE (Economic Strategies Research Center) in Besançon, France. He is also Associate Member of BETA-CNRS and Affiliated Member of OFCE-Sciences Po.