Meta-analysis of contingent valuation studies on air pollution-related morbidity risks

Sujitra Vassanadumrongdee*, Shunji Matsuoka, Hiroaki Shirakawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Benefits of reduced morbidity are important information for cost-benefit analyses of air pollution control policies. With an increasing number of morbidity valuation studies, policymakers are facing some difficulty handling the accumulated information. This article uses a meta-analysis to attain insights from the literature on economic valuation of short-term health effects due to air pollution. Sixteen available contingent valuation studies on morbidity risk valuation were pooled to identify the relations between willingness-to-pay (WTP) estimates and possible influential factors. The results indicate that health risk characteristics expressed in terms of severity and duration of illness, population characteristics (e.g., income and education), and study features affect individuals’ WTP to reduce or avoid a given morbidity. By controlling for these factors, a meta-regression-based function can be used to predict WTP values for use in benefit analyses of policy evaluation.

Original languageEnglish
Pages (from-to)11-47
Number of pages37
JournalEnvironmental Economics and Policy Studies
Issue number1
Publication statusPublished - 2004
Externally publishedYes


  • Air pollution
  • Contingent valuation
  • Meta-analysis
  • Short-term morbidity valuation

ASJC Scopus subject areas

  • Economics and Econometrics
  • Management, Monitoring, Policy and Law


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