Monetary Value of a Life Expectancy Gain due to Reduced Air Pollution: Lessons from a Contingent Valuation in France

Evaluation monétaire d’un gain d’espérance de vie dû à une réduction de la pollution de l’air: les enseignements d’une évaluation contingente en France

Brigitte Desaigues, Ari Rabl, Dominique Ami (), Kene Boun My (), Serge Masson, Marie-Anne Salomon and Laure Santoni
Additional contact information
Brigitte Desaigues: Chercheur indépendant
Ari Rabl: CEP - Centre Énergétique et Procédés - Mines Paris - PSL (École nationale supérieure des mines de Paris) - PSL - Université Paris Sciences et Lettres
Dominique Ami: ESPACE - Études des Structures, des Processus d’Adaptation et des Changements de l’Espace - Université de la Méditerranée - Aix-Marseille 2 - Université de Provence - Aix-Marseille 1 - AU - Avignon Université - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - UNSA - Université de Nice Sophia-Antipolis
Kene Boun My: BETA - Bureau d'Économie Théorique et Appliquée - INRA - Institut National de la Recherche Agronomique - UNISTRA - Université de Strasbourg - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique
Serge Masson: BETA - Bureau d'Économie Théorique et Appliquée - INRA - Institut National de la Recherche Agronomique - UNISTRA - Université de Strasbourg - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique
Marie-Anne Salomon: EDF - EDF
Laure Santoni: EDF - EDF

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Abstract: This paper presents the results of a contingent valuation in France of the life expectancy gain due to a reduction of air pollution. A questionnaire developed by Krupnick at al. [2002] for North America was translated and administered to 300 individuals aged 40 to 75, but by contrast to the application in other countries, an open question was added after each set of bids and at the end of the questionnaire the willingness-to-pay (WTP) values were recalled to give the respondents the opportunity to correct their values. Each questionnaire was followed by detailed written debriefing to learn how the respondents interpreted the questions. Furthermore, to test the robustness of the answers and provide guidance for improving the questionnaire, five variants were tested (with about 50 individuals for each), including variants phrased in terms of life expectancy gain. That allows to evaluate the sensitivity of the answers to the bids offered, and to the way how the good is described. The results are used to provide estimates for the value of a life year (VOLY): they range from 0.020 to 0.220 M?. The wide scatter of the results is a reflection of the difficulties that the respondents have in understanding risk reductions and replying to the WTP question.

Keywords: Mortality risk; Value of life year; Value of statistical life; Value of prevented fatality; Medical treatment; Elicitation question willingness-to-pay; Risque de mortalité; Valeur statistique de la vie; Valeur d’une année de la vie; Traitement médical; Consentement-à-payer (search for similar items in EconPapers)
Date: 2007-10-01
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Published in Revue d'économie politique, 2007, 117 (5), pp.675-698. ⟨10.3917/redp.175.0675⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-04346574

DOI: 10.3917/redp.175.0675

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