Universidad de los Andes, Colombia, Department of Mathematics, CES, Université Paris 1 Panthéon-Sorbonne, Laboratoire Jean-Alexandre Dieudonné, University of Warsaw - Institute for Social Studies, University of Warsaw - Institute of Applied Social Sciences and University of Manchester - School of Computer Science

Université de Nice Sophia Antipolis - Laboratoire Jean-Alexandre Dieudonné, CES, Université Paris 1 Panthéon-Sorbonne, HEC Montreal, HEC Montreal, Universite Paris 1 Pantheon-Sorbonne, HEC Montreal - Institute of Applied Economics, Laboratoire Jean-Alexandre Dieudonné and Department of Economics, University of Western Ontario