Journal Information  ·  Mission  ·  Editorial Board  ·  Directory of Economists Submissions  ·  New Submission  ·  Submit a Revision Table of Contents  ·  Refereed Content            Notes            Comments            Preliminary Results  ·  Research       Announcements  ·  Letters to the Editor  ·  Conference       Announcements  ·  Search Email Notification Service and Directory of Research Economists  ·  Add me to Directory  ·  Modify my Profile General  ·  Submission Guidelines  ·  PDF Conversion  ·  Copyright  ·  Electronic Publishing  ·  Archiving  ·  Sponsors and       Endorsements  ·  Economic Links     Paper available at :   http://economicsbulletin.vanderbilt.edu/2008/volume5/EB-08E50021A.pdf     Copies may be obtained by contacting :   Christophe Rault LEO, University of Orléans and EDHEC Business School chrault@hotmail.com   First Author : Alexandru Minea LEO, University of Orléans alexandru.minea@univ-orleans.fr Second Author : Christophe Rault LEO, University of Orléans and EDHEC Business School chrault@hotmail.com Third Author : Patrick Villieu LEO, University of Orléans patrick.villieu@univ-orleans.fr