First Author:   Christophe Starzec Paris School of Economics, Université Paris I Panthéon-Sorbonne christophe.starzec@gmail.com   1 ,villa de Lourcine Paris, 75014, France   +33 664548226(Phone) +33 664548226(Fax) Second Author: Armagan Tuna Aktuna-gunes Paris School of Economics, Université Paris I Panthéon-Sorbonne armagan.aktunagunes@gmail.com   106-112 Boulevard de l''''''''Hôpital, 75647, Paris Cedex 13, France. Paris, 75013, France   + 33 1 44 07 82 87(Phone)   Third Author: Francois Gardes Paris School of Economics, Université Paris I Panthéon-Sorbonne gardes@univ-paris1.fr   75647, Paris Cedex 13, France., 75647, Paris Cedex 13, France. Paris, 75013, France   +33144078287(Phone)