• Journal of the Korea Convergence Society
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• v.11 no.12
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• pp.409-418
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• 2020

The purpose of this study is to analyze the economic feasibility of public postpartum care centers established for health care of low-income postpartum mothers. 6 of 8 public postpartum care centers were used to verify the economic feasibility and research data were collected through the centers. A sensitivity analysis was performed with the bed turnover rate, assuming that users in a postpartum care center will be decreased. As a result, B/C ratio was estimated to be 1.50 and the net benefit was estimated to be KRW 186,557 in million. A sensitivity analysis showed that B/C was 1.42 at 17.4 of bed turnover rate and 1.26 at 15.4 which indicates the lowest bed turnover rate among subjects. A public postpartum care center was evaluated as economically feasible as public works. Therefore it is necessary that the public postpartum care centers operated by local governments should be expanded through legal amendment.

• Korean Journal of Environment and Ecology
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• v.28 no.1
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• pp.71-79
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• 2014

The goal of this study is to estimate economic benefit of restoring ecological stream of Hong Cheon river. The benefit is determined by estimating willingness-to-pay for the value of Hong Cheon river because it is a non-market good which is difficult to be measured in terms of monetary value. Specifically, the spike model, one of the contingent valuation methods, is used to distinguish respondents having zero willingness-to-pay for Hong Cheon river. The results show that a household located near the Hong Cheon river is willing to pay 3,300~4,628 Korean Won per year, while a household not located near the Hong Cheon river is willing to pay 1,308~2,929 Korean Won per year. Thus, total benefit of restoring ecological stream of Hong Cheon river is estimated as 97.6~216.3 billion Korean Won.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.1
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• pp.285-292
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• 2014

BIM (Building Information Modeling) is a new paradigm that includes construction life-cycle, and BIM has become mandatory regulation according to the Public Procurement Service since 2016, which accelerates its application. BIM is now expand from architectural field to infrastructure industry. Through pilot projects, BIM has been challenged with verification process. This trend has affected to maintenance and operation (M&O) phase of construction life-cycle. Advanced country has already published their research and result with feasibility study and guidelines. In this paper, we conduct the feasibility study to adopt BIM-based infrastructure management system. Bridges and tunnels were selected as application target, and benefit/cost ratio were used. The result shows that BIM-based infrastructure management system is feasible when the level of detail is more than "Medium" in bridge, and "High" in tunnel.

• Journal of Korea Water Resources Association
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• v.50 no.7
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• pp.467-473
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• 2017

Recently as algae phenomenon has been intensified, the need for additional dam flushing has been raised. To establish the more rational policies concerning the dam flushing, it is necessary to evaluate the dam flushing. This paper attempts to examine households' willingness to pay (WTP) for dam flushing by using a contingent valuation (CV). Especially, unlike other CV studies which used maximum likelihood estimation (MLE), this study employed Bayesian approach. This study surveyed a randomly selected sample of 1,000 households nation-widely, and asked respondents questions in person-to-person interviews about how they would be willing to pay for the additional dam flushing. Respondents overall accepted the contingent market and were willing to contribute a significant amount (1,909.4 won), on average, per household per year. The aggregate value amounts to approximately 35.7 billion won per year.

• Journal of Wetlands Research
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• v.6 no.1
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• pp.89-104
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• 2004

In the aftermath of nation-wide controversy over "conservation vs. development" of the costal wetland in the Saemangeum, Korea could legislate the laws of wetland conservation and costal management in 1998. Since then, the public interest in the costal mudflats and its conservation has increased greatly, but the controversy on the economic value of mutflat wetland and the futher (un)necessity of reclamation) is not yet settled. In the cases of Korea dealt, economic valuation of wetland was performed mainly in the milieu of reclamation(development) vs conservation conflict, or from interest of recreational use. Korean studies used to estimate economic value of development case and conservation case respectively and then tried to compare these two value, as is sometimes done also in other countries. But the scrutiny of the results of these studies leads us to conclude that the revealed wide discrepancy among estimated values, above all other methodological problems, denies any practical applicability to the actual policy use. Benefit transfer as a convenient alternative method of valuation can not be usable either in our cases, because there is too few reliable estimated economic values of mudflat wetlands.

• Environmental and Resource Economics Review
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• v.25 no.2
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• pp.321-349
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• 2016

According to the recent observation by NOAA(US National Oceanic and Atmospheric Administration), 2015 is the warmest year based on global average temperature since 1880. The air temperatures in the Arctic have been rising at almost twice the global average and the extent and thickness of sea ice in the Arctic have declined. And the warming process in the Arctic is accelerating rapidly. These impacts of drastic change in sea ice caused by climate change in the Arctic threaten the eco-system service and biodiversity in the Arctic. This study intends to estimate the economic value on changes in eco-system services and biodiversity of the Arctic caused by climate change. The result of the valuation indicates that the total benefit from improvement of ecosystem in the Arctic ranges from 318.6 billion won to 715.9 billion won per annum. Replication scenarios can be explored into two broad categories in future studies: scenarios in consideration of conflicts of different stakeholders and scenarios based on wider or narrower definition of biodiversity in the Arctic.

• Environmental and Resource Economics Review
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• v.8 no.1
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• pp.1-26
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• 1998

효율적인 대기질 개선정책을 위해서는 비용-편익이 반드시 필요하다. 대기질과 관련된 편익은 건강영향을 비롯하여 시정장애, 심미적 가치, 물질피해 등 많은 영향이 존재하는데 그 중 건강영향이 대부분을 차지하는 것으로 보고되고 있다. 본 연구에서는 대기오염과 관련된 건강영향 중에서 눈이 따가운 증상, 가슴이 답답한 증상, 그리고 천식증상에 관하여 서울시민들이 부여하는 경제적 가치를 조건부 가치측정법을 이용하여 측정하였다. 그 결과 눈이 따가운 증상은 2,850원, 가슴이 답답한 증상은 9,000원, 천식은 5만 5,400원으로 측정되었다. 또한, 하나의 설문에서 여러 개의 CV 질문을 수행하는 경우, 일반적으로 추정하는 일변량 모형과 이변량 모형의 추정결과는 다르다는 것을 알 수 있었다.

• Proceedings of the KOR-KST Conference
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• 2007.11a
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• pp.180-187
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• 2007

Car-sharing은 차량소유(Car ownership)의 대안으로서 개인이나 법인에게 차량을 한 시간의 짧은 단위로 이용하도록 하는 회원제 프로그램이다. 이는 차량을 보유하는 편리함 대신에 차량을 공동 이용함으로써 운영비용을 절감할 수 있다. 15년여 전 스위스에서 시작되어 현재는 유럽, 북미, 일본, 싱가포르 등에서 활성화되어 있고, 유럽에서는 대중교통과의 연계서비스까지도 실시하여 그 효과를 증대시키고 있다. 국내에서는 아직 기업의 수익성 사업으로 시도된 사례는 없으나 최근 서울 성산동 주민의 자발적인 참여로 6개 팀이 한 차량을 이용하는 형식으로 시도되어 이제 그 첫걸음을 떼고 있다. 본 논문에서는 Car-sharing에 대한 개념, 정의 및 택시나 렌터카 등 유사수단과의 비교, 그리고 해외에서 현재 운영 중인 Car-sharing 프로그램의 사례를 소개하고, Car-sharing 도입 시 발생하는 개인의 운영비용 절감뿐만이 아닌 차량통행 감소, 주차 수요 감소, 대중교통 이용률 증가, 오염물질 배출 저감, 교통 혼잡 감소 등 많은 종류의 사회적 편익을 국내 도입 시를 가정해 비용과 함께 개략적으로 추정, 편익-비용 분석을 통해 그 경제적인 효과를 검토하였다.

• 한국가스학회:학술대회논문집
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• 2005.10a
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• pp.49-58
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• 2005

A Cost-Benefit Analysis which would help us to make optical decisions among safety investment alternatives, calculating and comparing costs and benefits for facilities in chemical plants. As well as offering the related information in the decision makings for safety improvement, it promotes on-site safety activities and the efficiency of safety investments The developed Cost-Benefit Analysis will eventually contribute to our efforts in economically justifying the safety investments in chemical plants.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2011.04a
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• pp.502-507
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• 2011

A study on environmental noise hasn't fully researched yet. As society has developed and the quality of life has improved, people started to show a concern about an environmental noise. To ensure a economic feasibility of countermeasures of noise, it is necessary to apply a cost-benefit analysis on choosing optimum measurements. In this study, we addressed the estimation method of the environmental noise value and several domestic and oversea case studies. We also estimate economic value of noise reduction level which is gained from applying noise reduction measurements.