First Author:   Waël Louhichi ESSCA School of Management wael.louhichi@essca.fr   55 Quai Alphonse Le Gallo Boulogne Billancourt, 92513   698897125(Phone) 698897125(Fax) Second Author: François Aubert University of Clermont Auvergne francois.aubert@fulbrightmail.org   , France