• Korean Journal of Construction Engineering and Management
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• v.14 no.5
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• pp.44-54
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• 2013

As a green construction is a world-wide hot issue, Korean government is also putting forth a multilateral effort into reducing energy usage with setting aggressive goal under green growth policy. It is essential to analyse cost raised from designing and building green construction and benefit derived from the built facility for the sustainable green construction. However, compared to advanced countries in terms of green construction, there is lack of data and a systematic way for data collection and analysis in Korea. Without analyzing the cost-benefit of green construction, investors will hesitate to put his/her money into green construction and we can not expect its growth in construction industry. In this paper, cost of green construction was defined and categorized. Through case studies and various reports on cost-benefit analysis in advanced green construction countries, problems in terms of data collection and analysis in domestic green construction sector and improvement ways were suggested. The results of this study will contribute in classification of cost and benefit of green construction, data collection in systematic way, and increasing the feasibility of green construction via appropriate analysis on cost-benefit of green construction.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.2006-2010
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• 2006

우리나라에서는 치수사업을 추진하기 위한 경제성 분석으로 간편법과 개선법을 사용하여 오다가 현재는 2004년도에 개발된 다차원법(다차원 홍수피해 산정방법(Multi-Dimensional Flood Damage Analysis))을 이용하고 있다. 다차원법은 도시와 농촌 등의 구분없이 일반적으로 이용할 수 있도록 개발되었다. 본 논문에서는 도시지역에 적합하도록 다차원법의 홍수피해산정 요소들을 보정하여 적용하고 다차원법과 비교하였다. 본 방법을 도림천의 지하방수로 사업의 비용-편익비를 산정하여 비교한 결과, 다차원법을 이용한 경우 5.51, 본 연구에서 제시한 비주거지역 자산과 공공시설물의 피해율을 이용한 경우는 6.75의 비용-편익비를 추정할 수 있었다. 이는 피해액 항목들중 공공시설물피해 항목에 의한 영향의 크기 때문인 것으로 판단된다.

• Journal of Soil and Groundwater Environment
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• v.10 no.1
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• pp.18-25
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• 2005

For economic impact analysis on a R&D project of groundwater remediation in the metropolitan areas conducted as a fundamental research programme of KIGAM from 1998 to 2002, benefit/cost ratio(BCR), net present value(NPV), and internal rate of return(IRR) were calculated using a contingent valuation method(CVM). Measurable direct benefit parameters among the major outputs of this project consist of setup of drinking water facilities and groundwater information data valuation. In this study, economic impact of the project in NPV of year 2002, with applying a discount rate of $10.0\%$, was identified and estimated as 5.09 billion won in cost, 67.69 billion won in benefit, 62.60 billion won in NPV, 13.3 points in BCR, and $152\%$ in IRR, respectively.

• Journal of dental hygiene science
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• v.2 no.2
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• pp.53-62
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• 2002

The purpose of this study is to investigate the retention and caries prevention practical effectiveness of fissure sealant and regular checkup with cost-benefit analysis. The data of this study is based on "2000 The Survey of Korean Oral Health" by Ministry of Health & Welfare. This study is to investigate cost-benefit analysis on proper treatment for the decayed, in case of operating fissure sealant on molars at 1 year after eruption of permanent teeth. The obtained results were as follows: (1) Cost-benefit analysis on fissure sealant in 6-75 year old 43,736 thousand Korean people reveals that cost of fissure sealant is 1,610,994 million won and benefit is 69,460,691 million won. (2) Benefit of fissure sealant is 39.51 times as much as cost of fissure sealant. (3) Cost of twice in a year regular checkup is 2,678,544 million won. Indirect cost of regular checkup is 2.6 times as much as direct cost. (4) Cost of fissure sealant and twice in a year regular checkup is 4,289,538 million won, and benefit is 69,460,691 million won. Benefit of fissure sealant and twice in a year regular checkup is 16.2 times as much as cost.

• Journal of Environmental Policy
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• v.10 no.2
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• pp.61-92
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• 2011

We analyzed the efficiency of environment investments by taking examples of central government's environmental investment (CGEI hereafter) and investment in prevention of environmental pollution (IPEP hereafter). We expanded the scope of existing studies by decomposing the internal rate of return (IRR hereafter) and present value of benefit (Bpv hereafter) into variable cost (VC hereafter) reduction, investment cost reduction (STC-VC hereafter), and rent. And we found that Bpv checks only the magnitude of benefit, while IRR indicates the existence of efficiency by investigating short-run total cost (STC hereafter) reduction and rent. Finally, by analyzing investment efficiency and changing benefit with respect to CGEI and IPEP through the investment efficiency methodology that compares IRR with market interest rate, we executed retrospective benefit-cost analysis. Accordingly, CGEI and IPEP are not efficient. However, IPEP is even more inefficient than CGEI.

• Journal of the Korean Association of Geographic Information Studies
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• v.2 no.2
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• pp.87-96
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• 1999

Using the case of Taegu city, this study analyses benefits and costs related to the construction of GIS to local government. For this purpose, the study uses a case study selecting Taegu Metropolitan city. In this study, four discount rates(5%, 8%, 10%, 12%) are used for sensitivity analyses. According to this benefit-cost analysis, Taegu city government could get positive net present benefits from the year of 2004 which is 6 years after its GIS construction. This a result, Provides the economical and financial validity of GIS Construition in local government. In this study, analysis of invisible benefits are excluded. If these invisible and potential benefits are included in the analysis, GIS could produce more net benefits and the even break point of GIS construction in local governments will come earlier. For the further study, the study needs to develop new benefits and utilize cost-effectiveness analysis to catch these invisible benefits.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.31 no.1
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• pp.79-87
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• 2013

This study proposed a method to analyze the economic benefit of the national map revision program using the replacement cost method. The replacement cost method measures the benefit of a project as the minimum cost to replace functions of the project with those of alternative goods or services in an existing market. Thus, the demands on 1/5,000 topographic map revision in 18 administrative tasks such as city and district management planning were surveyed in three local autonomous entities. Then the cost to alternatively fulfill the demands was estimated with the standard construction estimating system for the field surveying and surveying results in commercial GIS companies for the site investigation. With this cost estimation model, the benefit of the current national map revision program to the local autonomous entities was estimated as 265,960,999 won. And cost benefit ratios according to several revision frequencies from 0.5 to 4 year were also compared to find the optimal frequency.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.479-484
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• 2009

우리나라에서 많은 하천정비사업이 이루어지고 있으며 하천정비사업을 위해 하천설계가 실시되고 있다. 하천설계시 호안 설계가 중요한 비중을 차지하고 있으나 현재까지 설계된 사업에서 적절한 호안공법이 선정되었는지는 검증이 되지 않고 있다. 따라서 하천설계에 적용된 호안공법의 적합성을 평가할 필요가 있으며, 이에 따라 본 연구에서는 자연형 하천설계에 적용된 호안공법의 적합성을 평가하였다. 평가방법은 편익(B)/비용(C)방법을 사용하였다. 편익평가방법은 기존의 호안을 평가하는데 사용되는 방법을 기본으로하여 약간의 수정을 가하여 사용하였다. 평가항목은 수리적안정성, 환경생태성, 어메너티의 항목으로 되어 있고 각 항목은 몇 개의 소항목으로 구성되어 각 항목별로 평가점수를 부여한다. 다음 하천의 위치에 따라 도시, 농촌, 산지로 분류하여 위치별 가중치를 도입한다. 편익을 하천위치에 따라 3가지 항목평가 점수와 가중치를 곱한 값을 더하여 산정하였다. 비용은 호안시공비와 재료비의 합으로 산정하고 5단계로 등급을 나누었다. 최종적으로 계산된 편익과 비용을 이용하여 호안의 경제성을 평가하였다. 평가에 이용된 하천은 하천분류별로 각각 몇 개씩 선정하였으며 하천보고서를 이용하여 평가하였다. 평가결과는 각 하천별로 점수화할 수 있으며 따라서 호안설계점수를 상대적으로 비교할 수 있다. 호안공법별로 평가한 결과 식생매트를 사용한 호안의 경제성이 가장 좋으며 방틀공법을 사용한 호안의 경제성이 가장 나쁜 것으로 나타났다. 본 연구의 평가방법은 호안을 설계할 때 가장 적절한 호안공법을 선정하는데 도움을 줄 수 있을 것이다.

• Environmental and Resource Economics Review
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• v.33 no.1
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• pp.33-57
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• 2024

This study analyzes the purchase subsidy for electric light-duty vehicles in terms of environmental benefits and total cost of ownership(TCO). For the environmental benefits, we considered the emissions from the power generation mix and reflected the change in efficiency of electric vehicles according to the temperature distribution. The environmental benefits of driving electric vehicles were estimated to be between KRW 2.2 million and KRW 5.3 million. Also, the TCO of electric vehicles compared to diesel vehicles under the current purchase subsidy was estimated to be about KRW 3.6 million lower for business use and about KRW 6.6 million lower for non-business use. These results imply that it is reasonable to lower the unit price of the purchase subsidy even within the same budget. Moreover, the remaining budget could be better spent on upgrading the charging infrastructure, which would reduce the inconvenience of charging for potential buyers.

• 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.