1. Théophile T. Azomahou United Nations University (UNU-MERIT), Maastricht University, University of Auvergne and CERDI azomahou@merit.unu.edu
2. Fatoumata L. Diallo University Cheikh-Anta-Diop of Dakar (UCAD) and Consortium pour la Recherche Economique et Sociale (CRES) faatdiallo@yahoo.fr