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First Author:
 
Jamel JOUINI
F.S.E.G.N. and L.E.G.I., Université 7 Novembre de Carthage, Tunisie and GREQAM, Université de la Méditerranée, France
Jamel.Jouini@fsegn.rnu.tn
 
 
 
 

Second Author:

Karim BARHOUMI
GREQAM, Université de la Méditerranée, France and Economics Department of Macquarie University, Australia
barhoumi@univmed.fr