Arouri Mohamed el hédi EDHEC Business School   arouri@yahoo.fr Université d'Orléans Rue de Blois, BP 6739 Orleans, ORLEANS CEDEX 45067 France   mohamed.arouri@univ-orleans.fr   https://sites.google.com/site/mohamedarouri/           JEL Areas: F3 : International Finance: General C1 : Econometric and Statistical Methods: General