Hélène Raymond-feingold University of Paris-Ouest Nanterre la Défense   University of Paris Ouest Nanterre SEGMI 200 av. de la République Nanterre, 92001 France   helene-raymond-feingold@u-paris10.fr             JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) F3 : International Finance: General