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		| Jens-peter  Loy  | 
	
	
		| Institute of Agricultural Economics, Christian-Albrechts-University Kiel | 
	
	
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		| Kiel,   | 
	
	
		| Germany | 
	
	
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		| jploy@ae.uni-kiel.de | 
	
	
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		JEL Areas: Q0 : Agricultural and Natural Resource Economics; Environmental and Ecological Economics: General C5 : Econometric Modeling: General |