• 응용통계연구
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• 제27권2호
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• pp.211-226
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• 2014

국민연금 노령연금 수급자를 대상으로 소득계층별 차별 사망력과 기대여명을 산출하고, 그 결과를 반영하여 노령 연금 수급자의 수급부담구조를 분석하였다. 분석을 위해 노령연금 수급자의 소득계층에 대한 구분은 생애평균소득을 기준으로 3분위로 세분화하였으며, 사망확률 추정을 위해서 사용된 함수는 고연령 사망확률 추정에 주로 사용되는 gompertz모형을 사용하였다. 산출된 기대여명을 이용하여 소득계층별로 생애 총 연금급여액 규모를 추정함으로서 수익비, 내부수익률 및 후세대 부담전가량 분석의 정확성을 높이는데 기여하였다. 기대여명 추정 결과 60세 남자의 기대여명은 약 23.10년이며, 소득계층별로는 21.69~24.63년의 차이를 보이고 있다. 60세 여자의 기대여명은 약 28.84년이며, 소득계층별로는 27.63~29.81년의 차이를 보이고 있다. 즉 하위소득계층의 기대여명의 경우 소득계층을 통합한 경우의 기대여명보다 1.21~1.41년 낮게 추정되었으며, 상위 소득계층의 경우에는 0.97~1.53년 높게 추정되었다. 산출된 기대여명을 사용하여 수익비를 분석한 결과 하위 소득계층의 경우 약 2.68~4.83% 낮게 분석되었으며 상위 소득계층의 경우에는 2.07~4.98% 높게 분석되었다. 내부수익률은 하위 소득계층의 경우 약 0.00~0.74% 낮고 상위 소득계층의 경우에는 0.03~1.73% 높게 분석되었으며, 후세대 부담전가량은 하위 소득계층의 경우 약 3.00~5.74% 낮고 상위 소득계층의 경우에는 2.53~9.68% 높게 분석되었다. 분석 결과는 노령연금 수급자에 대한 소득계층별 기대여명 추정을 통해 나타난 수급부담구조 분석의 결과로서, 기존의 소득계층별 기대여명을 고려하지 않은 시뮬레이션 분석과는 차별성이 있으며, 소득재분배 효과가 있는 국민연금 노령연금 수급자의 수급 부담구조분석 결과에 대한 대표성을 지닌다.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2006년도 춘계학술대회
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• pp.400-404
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• 2006

The environmental problem come because the demage cost of environmental pollution is not properly reflected in market price. The government regulations for market is justified to solve the problem. The policy needs a close analysis of environmental, economical effect for the point of time, methods, rational decision making of the government regulations. Especially, we need to assume and analyze about social expenses by environmental pollution and policy execution. The cost-benefit analysis about environmental pollution is used to support decision making. The value of benefit about damage by environmental pollution or about improvement changes a monetary unit through the cost-benefit analysis. The working like this is said environmental material valuation or measuring valuation. This work is studied about looking for proper analysis model to apply our environmental materials.

• 대한지역사회영양학회지
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• 제23권5호
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• pp.385-396
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• 2018

Objectives: This study aims to evaluate the economic efficiency of a nutrition management program for children under 5 years of age in Kenge, Kwango District, Democratic Republic of the Congo (DR Congo) from 2014 to 2016. Methods: The economic efficiency of a nutrition management program for children under 5 years of age who have recovered from malnutrition status was evaluated using a cost-benefit analysis. The costs were analyzed according to the executed budget incurred during the project period. The benefits were estimated as the monetary value of the saved lives of children under 5 years of age. The economic efficiency of the program was determined by the Benefit-Cost Ratio (BCR). The BCR was calculated by dividing the total discounted benefit by the total discounted costs. The project is economically efficient when the BCR is greater than 1. Results: The costs of the nutrition management program were calculated as 1,677,609,648 Korean Won (KRW). A total of 2,466 children survived with improved malnutrition status through this program. The benefit for the reduction of mortality for children under 5 years of age was estimated to be 6,814,354,467 KRW, the estimated value of life for 2,466 children. The BCR was 4.06. Conclusions: The nutrition management program for children under 5 years of age in DR Congo was found to be a cost-effective project. Successful and efficient Official Development Assistance (ODA) for a health project requires integrated and comprehensive strategies and specialized international development consulting to improve efficiency. Future nutrition management programs should take into account the national health program to maintain the sustainability of the project.

• 환경정책연구
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• 제10권2호
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• pp.61-92
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• 2011

제조업을 중심으로 분석한 환경관련투자 효율성의 주요 연구 결과는 다음과 같다. 내부수익률과 편익의 현재가치를 가변비용절감부문, 투자비용절감부문, 임대수입부문으로 분해함으로써 기존 연구의 범위를 확장했다. 그리고 단기총비용과 임대수입의 역할을 탐구하여 편익의 현재가치는 편익의 크기만을 나타내는 반면, 내부수익률은 효율성의 존재여부를 나타냄을 발견했다. 그리고 내부수익률과 시장이자율을 비교하는 투자효율성 방법론으로 환경관련투자와 관련된 투자효율성과 편익을 분석함으로써 사후 비용편익분석을 수행했다. 그 결과 환경투자, 공해방지투자 모두 비효율적인데, 공해방지투자가 환경투자보다 더 비효율적임을 발견했다.

• 상하수도학회지
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• 제26권4호
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• pp.513-520
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• 2012

The use of food waste disposers (FWDs) can be an emerging option to manage organic food wastes in municipal sewage system. The cost-benefit analysis (CBA) of introducing domestic FDWs is conducted to access the allowable disposer market price and the economic impact on food waste management from conventional solid waste management system. If the convenience value of 10,000 won/month is taken into consideration based on survey results, the introduction of FDWs can lead to net economic benefits, allowing the capital cost of disposer up to 1,000,000 won/unit. Without the consideration of convenience value, the introduction of FWDs becomes profitable if the capital cost of disposer is less than 50,000 won/unit. In case that the value of convenience is more than 7,000 won/month, the reduction of food waste management cost is not valid for the introduction of FWDs to be non-profitable. However, if environmental externalities are considered, the proposed system could become breakeven with the cost of food waste management decreases by 54 % (60,000 won per ton).

• 수산해양교육연구
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• 제27권4호
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• pp.1092-1098
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• 2015

Fishing population has been increasing with national income improvement and the five-day workweek in Korea. Recently commercial fishing facilities like pay fishing pond are emerging as demand of saltwater fishing increases, unlike the past when inland fishing was prominent. In order to do businesses, economic analysis should be done in advance. This study aimed to make an Economic analysis of Uljin pay-fishing place by estimating the cost and benefit, and calculating the rate of economic return. The results show the Uljin pay-fishing place's net present value of 3.5 billion won, internal rate of return of 14%, and benefit cost ratio of 1.16 at 5.5% social discount rate.

• 한국기계기술학회지
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• 제13권2호
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• pp.21-29
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• 2011

This paper examines the applicability of formal safety assessment to the passenger ships. This is followed by an analysis of passenger ship characteristics and a proposed formal safety assessment methodology. Five interlocking steps are described to construct a safety model including novel risk assessment, cost-benefit analysis and decision-making approaches. A case study is carried out in order to demonstrate the proposed methodology. Further development in formal safety assessment in the context of passenger ship safety is finally discussed in detail.

• 한국환경과학회지
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• 제10권2호
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• pp.85-90
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• 2001

The conflicts between environment protection and economic development are becoming increasingly important in environmental decision making of Nakdong River Basin. A science-based evaluation system is now needed to represent both the environmental values and the economic values with a common measure. EMERGY, spelled with an \"m\" evaluates both the work of river and that of human in generating products and services. The monetary cost-benefit analysis and the environmental accounting by EMERGY analysis were applied to determine whether there will have a net benefit in environmental decision making of Nakdong River Basin. Based on the results of the environmental accounting, all alternatives which related to environmental decision making of Nakdong River Basin show that more and more of EMERGY cost becomes needed than the a EMERGY benefit from getting water to drink in the lower basin. From these results, for selecting alternatives to manage water quantity and quality that is sustainable in the environmental use and economic development, environmental accounting concepts must be considered, and the economic structure of Nakdong River Basin should be changed from the present industrial structure to social-economic based on ecological-recycling concept for the sustainable use of Nakdong River.ong River.

• 한국건축시공학회지
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• 제8권2호
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• pp.81-87
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• 2008

High-rise building is taking a place as one of building types from apartment housings to commercial buildings. With taking in account of stability and durability, strength of used materials is increasing gradually in these high-rise buildings. According to this, frequency in use of SD500 re-bar is increasing gradually in high-rise buildings. However the study of SD500 re-bar is insufficient because SD500 re-bar started to be used for domestic buildings lately. Specially because there is no guide or study to refer to, people get into difficulties when to decide the method of re-bar connection in construction using SD500 re-bar. Accordingly in this study, it suggests the method of estimating the economical efficiency on SD500 re-bar connection, and conducts benefit/ cost analysis on lapped splice and coupler splice by applying AHP theory, and then presents its result. After to analyze re-bar diameter of D25, 29, and 32, finally we attained the result that the coupler splice is advantageous in all parts of benefit/ cost more than the lapped splice.

• 한국환경복원기술학회지
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• 제17권6호
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• pp.29-37
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• 2014

The objective of this study is to estimate the cost and benefits of street trees for their planting types, specifically, single row, single row+bottom, double row, double row+bottom. Different planting types are compared and analyzed by using Net Present Value (NPV) and benefit-cost ratio (BCR). Existing data are collected from the literature reviews for the use of meta-analysis method for estimating cost and benefit. The elements for analyzing costs are management and planting costs, and benefits are air purification, energy saving and landscape view. The discount rate is applied at a minimum of 3% and a maximum of 5.5%. The unit used in this calculation is km/year. The result shows that the net benefit is highest in double row, followed by single row, double row+bottom, and single row+bottom. The BCR is the highest in double row, followed by single row, double row+bottom, and single row+bottom. The BCR reaches the break-even point from 9 to 17 years depending on the planting types.