Does the knowledge of the origin of the health damage matter for WTP estimates?

Anne Rozan and Marc Willinger

Working Papers of BETA from Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg

Abstract: In this paper, we show that expressed willingness-to-pay (WTP) for reducing symptoms caused by air pollution, crucially depends on the respondents being aware of the origin of the symptoms. We observe that the average stated WTP is 50 % higher when respondents are informed in the questionnaire that air pollution is the origin of the bad health state. Since the information about the origin of the improvement of the health state is not neutral with respect to the valuation exercise, we discuss the relative merits of the two alternative methods : providing the information about the origin of the health improvement or not. We argue in favour of the alternative that provides that information. Indeed, without the information provided in the questionnaire, there is a risk that the valuation is based on individual information and subjective references. On the contrary, with the information, all willingness-to-pay are focused on the same cause, providing a better control over individual responses.

JEL-codes: C93 Q26 (search for similar items in EconPapers)
Date: 1999
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:ulp:sbbeta:9904

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