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Application of contingent valuation method for estimating willingness-to-pay in planning the integrated sewerage system in the catchment of Dam Chung-Ju  

Jeong, Dong-Hwan (Department of Civil Engineering, Chungang University)
Park, Kyoo-Hong (Department of Civil Engineering, Chungang University)
Jin, Young-Sun (Research 21)
Cho, Joung-Moo (Saman Engineering Consultants Co.)
Publication Information
Journal of Environmental Impact Assessment / v.13, no.2, 2004 , pp. 73-86 More about this Journal
Abstract
The objective of this research was to estimate residents' willingness-to-pay using contingent valuation method and to investigate their environmental sensibilities prior to conduct the costbenefit analysis on the watershed management program of integrated sewerage construction and operation in the catchment of Dam Chung-Ju. A set of questionnaire was prepared and asked to 1,200 residents at downstream area as well as upstream area of Dam Chung-Ju. As a result, environmental sensibility of the residents living in the catchment of upstream of Lake Chung-Ju seemed very high. However, the substantial practice in their own life for conserving their environment was inactive, although residents' efforts trying to collect and dispose garbages in separate containers and to minimize the waste discharge load were actually made. The willingness-to-pay on each month for 20 years was estimated as 4,841 wons for the openended question and 3,411 wons for the close-ended question. Factorial analysis was also performed to obtain correlation among the questions asked. Seven groups of the correlated questions were identified and their contribution to the estimated willingness-to-pay was analyzed.
Keywords
contingent valuation method; integrated sewerage system; willingness-to-pay; cost-benefit analysis; watershed management;
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