1. Toulouse School of Economics and Institute for Advanced Study in Toulouse
2. Organisation for Economic Co-operation and Development
3. Centre for Operations Research and Econometrics/Louvain Institute for Data Analysis and Modeling, Université Catholique de Louvain
4. Aix-Marseille University, Centre National de la Recherche Scientifique, École des Hautes Études en Sciences Sociales, Centrale Marseille, Aix-Marseille School of Economics