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장석원,김상문,Jang, Seok Won,Kim, Shang Moon 한국수자원학회 2015 한국수자원학회논문집 Vol.48 No.9
본 논고는 고양 정수장과 구미 정수장으로부터 물을 공급받고 있는 5개 도시(고양, 파주, 구미, 김천, 칠곡)를 대상으로 고도정수처리 도입의 경제적 편익을 평가하였다. 지불가능금액(WTP) 추정을 위한 방법으로는 이중경계 양분선택형 CVM을 이용하였다. 특히 평균 WTP 추정값을 도출하기 위한 방법으로 모수 추정법 중 구간 데이터(interval-data) 모델을 이용하였다. 고도정수처리서비스에 대한 추가 지불 WTP(평균)는 공변량을 포함한 모델을 적용하였을 경우 톤당 231.3원이, 공변량을 포함하지 않은 모델을 적용하였을 경우에는 231.2원인 것으로 추정되었다. 한편 추정된 WTP와 함께 고양 및 구미 정수장으로부터 공급받는 수돗물 공급량(각각 59.675 백만$m^3$/년, 93.734 백만$m^3$/년)을 고려하여 정수장별 고도정수처리의 경제적 편익을 도출한 결과 고양정수장은 약138억 원/년이, 구미정수장은 16.8억 원/년으로 추정되었다. 그리고 설비의 내구연한을 10년으로 가정할 경우, 비용 대비 편익 비율은 고양정수장이 3.7, 구미정수장이 2.1로 조사되었다. 수도사업 관련 고도정수처리 도입은 공공사업의 한 유형으로, 이는 경제적 편익 및 비용이 동시에 고려되어야 할 정책적 사업이다. 이러한 의미에서 본 연구의 산출물인 고도정수처리의 WTP는 정책결정자의 수질개선 관련 의사결정에 기초 자료가 될 것이다. This paper attempts to measure the economic benefits of advanced water treatment in five cities (Goyang, Paju, Gumi, Gimcheon, Chilgok), which are supplied water from Goyang and Gumi filtration plant. We used the dichotomous choice contingent valuation method to estimate WTP. Parametric interval-data model are used to obtaining the mean WTP estimates. The results show that the mean of additional WTP for advanced water treatment services were estimated to be KRW 231.3 and KRW 231.2 per $m^3$ using model with covariates and without covariates, respectively. Given the water supplies of Goyang and Gumi filtration plants ($59.675m^3/y$ and $93.734m^3/y$), the economic benefits of those advanced water treatments can be expected to be KRW 13.8 billion and KRE 21.68 billion. And the calculated B/C ratios are 3.7 and 2.1 when a lifespan of facility is 10 years. Advanced water treatment should be introduced in terms of the economic benefits and costs. Thus, this results can be useful in water policy decision-making.
장석원 안암어문학회 2001 어문논집 Vol.44 No.1
In the traditional lyric points of view, Kim Soo-young's poems are estimated as $quot;a poem not a poem, because he is extravagant with the prose. Though the compressed images, the lyric constructed the united and asthetic structure between the wild and the self. But the prose violated the normative structure of the lyric. If his poems introduced the prose and his works are located the boundary between the prose and the lyric, it implied the possibility that his poems had the new aspects. The purpose of this thesis is to investigated that how does 'the prosaic-characteristics' are developed in his poetics and made a what kinds of peculiarity. He introduced the prose to contradict the reality, if made the poem obscure, the obscure poem are muted a difficult poem. Even the obscurity and the difficulty are opposed to the existing poem, he never give up his poetic adventure. The obscurity is not the skepticism the nihilism that deny the wild and doubt the possibility of the access toward an object. The obscurity offers the basic point to the repressing structure which concealing the wild and distorting the many of being. The obscurity offers the basic start for the veering of freedom to reject and resist. His introducing of the prose means that the prose are used far the purposed and methodological instrument to renovate the poem. The prose is the base of the poetic consciousness to open the world. He claims the participating in the reality and aims the freedom in the poet and the poetics. The prose farms the basis far criticizing the reality and denying the self. The poem overcomes the poetic limitation by the prose, the poetics acquire the power far the criticism and the denial. The conscious resoluteness, finding a poetic reforming method from the prose, represents his spirit of adventure far the development of the poem and the reality. His poems enlarged the poetic diction by using the everyday language and vulgar language not regarded as a poetic diction. Also thinkings are fit of the contents and farms, it enlarges the poetic territory. Endowing the closed and simplified lyric with the openness and polyphony. His poetic influences our poems are cause from using the prose.