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		| John C. Whitehead, O. Ashton Morgan and William L. Huth | 
	
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		| ''Convergent validity of stated preference methods to estimate willingness-to-pay for seafood traceability: The case of Gulf of Mexico oysters'' | 
	
		| ( 2018, Vol. 38 No.1 ) | 
	
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		| In this study we compare willingness to pay for a seafood traceability system from contingent behavior demand and contingent valuation referendum vote models using data from a survey of Gulf of Mexico oyster consumers following the BP oil spill in 2010. We estimate a random effects model of oyster demand using contingent behavior data and find that a traceability program increases demand and consumer surplus. We estimate a referendum model for the seafood traceability program using contingent valuation data. We find that welfare estimates from the contingent behavior and contingent valuation methods are convergent valid under certain conditions. | 
	
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		| Keywords: Contingent behavior,  contingent valuation,  convergent validity,  oyster,  traceability | 
	
		| JEL: Q5 - Environmental Economics: General Q2 - Renewable Resources and Conservation: General
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		| | Manuscript Received : Sep 20 2016 |  | Manuscript Accepted : Feb 09 2018 | 
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