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First Author:
 
Valerie Mignon
University of Paris 10, THEMA-CNRS
Valerie.Mignon@u-paris10.fr
 
200 avenue de la Republique, THEMA
Nanterre Cedex, 92001, France
 
 
 

Second Author:

Gilles Dufrenot
University of Paris 12, ERUDITE, and GREQAM
lopaduf@aol.com
 
 
 
 

Third Author:

Slim Chaouachi
University of Paris 12
chaouachi@univ-paris12.fr