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		| Jean-pascal  Gayant  | 
	
	
		| GAINS-TEPP, University of Le Mans, France | 
	
	
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		| Université du Maine | 
	
	
		| Avenue Olivier Messiaen | 
	
	
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		| Le Mans cedex 9,  72085 | 
	
	
		| France | 
	
	
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		| jpgayant@univ-lemans.fr | 
	
	
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		| www.univ-lemans.fr/~jpgayant | 
	
	
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		JEL Areas: D8 : Information, Knowledge, and Uncertainty: General L8 : Industry Studies: Services: General |