First Author:   Bertrand Tavin emlyon business school tavin@em-lyon.com   Ecully, 69130, France   0478337800(Phone) 0478337800(Fax) https://sites.google.com/site/btavin Second Author: Guillaume Coqueret emlyon business school coqueret@em-lyon.com   23 Avenue Guy de Collongue Ecully, 69130, France   0478337800(Phone)   https://sites.google.com/site/guillaumecoqueret/