현시선호와 진술선호 자료의 결합을 통한 조건부 가치측정법 소득조정계수의 추정 = An Empirical Test for CVM Calibration Factor through Combining Revealed and Stated Preferences Data

다국어 초록 (Multilingual Abstract)

Contingent Valuation Method (CVM). as non-market valuation approach, has been criticized on that respondents may not realistically reflect their budget constraints in answering veillingness to pay (WTP) for hypothetical CV questions. This paper empirically estimates the income calibration facto, associated with CV responses through combining travel cost method and contingent valuation method in 1 utility-theoretic framework. The joint model of recreation demand function and contingent WTP function was applied to an important case study on the Man Kyoung River system, hose water quality is at issue because of the Sae Alan Rom reclamation project. Relevant economic variables such as price, income and water quality had significant influence as anticipated by the economic theory. Equally important. the income calibration factor was not significantly different from one, suggesting that the systematic discrepancies of CV responses relative to the actual behavior was not detected at least in terms of budget exaggeration. Overall, this study supports the notion that carefully designed CVM studies can provide informative data on individuals` willingness to pay for environmental quality changes.