Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Assessment of Economic Value of Sangkwan Multi-Purpose Reservoir (I): Benefits of Environmentally-Enhancing Water

상관 다기능 저류지 조성의 경제적 편익 평가(I): 환경개선용수 공급편익을 중심으로

  • Lee, Joo-Suk (Division of Economics and Commerce, Hoseo University) ;
  • Ryu, Moon-Hyun (Korea institute of water and environment) ;
  • Yoo, Seung-Hoon (Graduate School of Energy & Environment, Seoul National University of Science & Technology)
  • 이주석 (호서대학교 경제통상학부) ;
  • 류문현 (한국수자원공사 K-water, 정책경제연구소) ;
  • 유승훈 (서울과학기술대학교 에너지환경대학원)
  • Received : 2012.08.17
  • Accepted : 2013.08.23
  • Published : 2013.10.31
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Abstract

This study attempts to estimate the benefits of environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir. To this end, we apply a survey technique, the contingent valuation (CV) method to elicit the public willingness to pay (WTP). Two CV surveys of randomly selected households were administrated to on-site and off-site areas. As it happens, a number of respondents reported zero WTPs for the environmentally- enhancing water. To deal with the zero WTPs, this study employs a spike model. The results show that average household's WTP for the environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir is estimated to be 1,393.7 won for on-site area and 2,237.7 won for off-site area per year. The benefits of environmentally-enhancing water ensuing from Sangkwan multi-purpose reservoir amount to about 38.3 billion won per year. Our findings are expected to contribute to determining an appropriate level of investment and making management policies with regard to the benefits of environmentally-enhancing water.

본 연구는 상관 다기능 저류지의 조성을 가상적으로 설정하여 환경개선용수 공급편익을 추정하고자 한다. 이를 위해 국민들의 지불의사액(WTP, willingness to pay)을 유도할 수 있는 설문조사기법인 조건부 가치측정법을 적용한다. 조사결과 많은 응답자들은 영의 WTP를 밝혔다. 이러한 영의 WTP를 다루기 위해 본 연구에서는 스파이크 모형을 적용한다. 분석결과 환경개선용수 공급편익은 사업지에 대해 가구당 연간 1,393.7원, 비사업지에 대해 가구당 연간 2,237.7원으로 추정되었다. 이 값을 전국으로 확장하면 연간 383.6억원에 달한다. 이러한 분석결과는 환경개선용수의 공급편익과 관련된 투자의 적정수준 결정 및 관리정책 결정에 있어서 유용하게 활용될 수 있을 것이다.

Keywords

References

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