| 
	
	
		|   | 
	
	
		| Stéphan  Marette, Jayson L. Lusk and Jutta  Roosen | 
	
	
		|   | 
	
	
		| ''Welfare Impact of Information with Experiments: The Crucial Role of the Price Elasticity of Demand'' | 
	
	
		| ( 2010, Vol. 30 No.2 ) | 
	
	
		|   | 
	
	
		|   | 
	
	
		| This paper focuses on the welfare effects of information computed from experimental methods eliciting willingness-to-pay. First, a theoretical model shows that the size of the welfare variation is related to the elasticity of the demand under the absence of information about a characteristic. Second, our estimates indicate that consumer demand from a laboratory auction is more price-elastic than time-series demand for similar products. As a result, the welfare change directly derived from individual willingness-to-pay is overestimated compared to the welfare change linked to an approach combining time-series demand with the mean willingness-to-pay premium. | 
	
	
		|   | 
	
	
		|   | 
	
	
		| Keywords: Experiment,  Welfare,  Consumers,  Information,  Demand | 
	
	
		JEL: C9 - Design of Experiments: General Q1 - Agriculture: General | 
	
	
		|   | 
	
	
		| Manuscript Received : Apr 03 2010 |   | Manuscript Accepted : May 27 2010 |  
  |