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		| Laurent  Vidu | 
	
		| CREM Universite de Caen | 
	
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		| Faculté de Sciences économiques et de gestion | 
	
		| 19, rue Claude Bloch | 
	
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		| Caen Cedex,  14032 | 
	
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		| laurent.vidu@unicaen.fr | 
	
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		| JEL Areas: D7 : Analysis of Collective Decision-Making: General
 C7 : Game Theory and Bargaining Theory:General
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