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First Author:
 
Walid Benayed
Higher Institute of Management of Gabes, University of Gabes, Tunisia
benayed87@hotmail.com
 
benayed87@hotmail.com
, Tunisia
 
 
 

Second Author:

Nouha Bougharriou
Faculty of Economics and Management of Sfax, University of Sfax, Tunisia
nbougharriou@gmail.com
 
, Tunisia
 
 
 

Third Author:

Foued Badr Gabsi
Faculty of Economics and Management of Sfax, University of Sfax, Tunisia
fouedbadr.gabsi@gmail.com
 
, Tunisia