Phillip Cartwright Ecole Supéreiure de Gestion MS   25, rue St. Ambroise Paris, IDF 75011 France   cartwright.phillip@esg.fr   http://www.linkedin.com/profile/view?id=101083&trk=tab_pro           JEL Areas: C1 : Econometric and Statistical Methods: General D4 : Market Structure and Pricing: General