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Do Contingent Valuation Estimations Pass a 'Scope' Test?A Meta Analysis


  • Smith, Kerry
  • Laura Osborne


This paper considers two tests proposed to judge the internal consistency of contingent valuation estimates. Both tests are quite sensitive to the maintained hypotheses required to derive fairly precise expectations for the properties of WTP functions. This result suggests a different approach may be needed in gauging the reliability of CV. This paper describes an alternative approach that relies on a weight of the evidence criterion and uses meta analysis to develop a systematic appraisal of what are the economic values of changes in amenity resources. The approach is illustrated for the case of estimating people's willingness to pay for improving (or maintaining) visibility at the national parks.

Suggested Citation

  • Smith, Kerry & Laura Osborne, 1995. "Do Contingent Valuation Estimations Pass a 'Scope' Test?A Meta Analysis," Working Papers 95-52, Duke University, Department of Economics.
  • Handle: RePEc:duk:dukeec:95-52

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    JEL classification:

    • H42 - Public Economics - - Publicly Provided Goods - - - Publicly Provided Private Goods
    • Q25 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Water
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis


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