First Author:   Whelsy Boungou PSB Paris School of Business boungouwhelsy@yahoo.com   59 Rue Nationale Paris, 75013, France   +33 6 19 20 34 16(Phone) +33 6 19 20 34 16(Fax) https://sites.google.com/view/whelsyboungou/home Second Author: Charles Mawusi University of Bordeaux charles.mawusi@u-bordeaux.fr   GREthA, GREthA Pessac, 33608, France