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First Author:
 
Jean-michel Sahut
IPAG Business School, IPAG – Lab, France
jmsahut@gmail.com
 
195 route des Crêts de Fessy
Arenthon, 74800, France
 
33651032488(Phone)
33651032488(Fax)

Second Author:

Medhi Mili
University of Sfax
mehdi.mili@isgs.rnu.tn