Born 1945. Professor of demography (classe exceptionnelle) Université Paris Descartes Training : MA Sociology and MA Economics ( Sorbonne), Diploma Sciences Po (Paris) D.Phil. Oxford, Doctorat es-Lettres (Paris). Chair of the Scientific Board of the Faculty of Social Sciences. Member of the Strategic comittee at the University level. Director of the Centre Population et Développement (CEPED, Université Paris Descartes, l’INED et l’IRD). 44 full-time teaching and research staff Published 17 books, 62 peer reviewed articles, etc. on international migrations, population theories and doctrines, family and fertility) Founding member of the the Revue Européenne des Migrations Internationales. Chief editor of the series Populations (L'Harmattan). Chief editor of Demographic Transformation and Socio-Economic Change (Springer) Worked as a consultant for UNFPA UNDP, UNICEF, USAID, World Bank, Coopération française, UNESCO. Field experience in several African, Carribean and South-East Asian countries.