• Journal of the Korean Institute of Gas
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• v.16 no.6
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• pp.80-86
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• 2012

From 1982, the Korean Ministry of Employment and Labor has executed the risk assessment regulation for manufacturing industries. When a manufacturing company install, transfer, or modify the major facilities, the program inspects and verifies safety of the working place to ensure safety against risks. This study performed cost-benefit analysis of the program for the eight industrial categories that were free from the program. The cost-benefit analysis is the basic method to estimate the effect of the policy execution, and used to justify the policy effectiveness. As a result, there is the biggest benefit in the manufacture of basic metal products and then motor vehicles, trailers and semitrailers, other manufacturing, other machinery and equipment, wood products of wood and cork, rubber and plastic products, food products, furniture in order. Thus the hazard prevention program should be applied into the 8 industrial categories in order to strengthen national competitiveness, protect labors's safety, reduce the social cost and improve the welfare.

• Current Industrial and Technological Trends in Aerospace
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• v.6 no.2
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• pp.40-50
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• 2008

Most of satellite program process consists of mission analysis, thermal, structure, electronics design, and operation, etc. Each step has several steps like design phase, development phase, and verification phase, etc. As to do this kind of process, very high costs and much time are required, further high risk is included. So for solving those difficulties, satellite developers have designed and used satellite simulator system. In early stage of satellite development, simulator system was just used for a fragment of development and verification, so it could not give enough advantage on satellite development. In order to get high advantage on satellite development, full system level simulators which can be used for several steps for development and verification are evolved. So This paper introduces the trend of simulation systems for satellite development and verification used by several satellite developers.

• Journal of the Korean Institute of Gas
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• v.15 no.1
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• pp.15-21
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• 2011

Cost-benefit analysis (CBA) has been performed in order to decide whether the ILI (in-line inspection) suggested as risk mitigation measure (RMM) from quantitative risk assessment is reasonably practicable. As a result of CBA, we could find out the reasonable intervals of implementation of ILI. In order to assess the benefit, value of preventing a fatality (VPF), which measures value of human life, has been used. The adequate VPF figure of high pressure urban gas pipelines for CBA used in this paper is two billion won. As a result of 2 case studies, we found that the most reasonable intervals of ILI suggested as RMM were 13 years or 15 years.

• Journal of the Korean Institute of Gas
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• v.13 no.3
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• pp.22-27
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• 2009

Recently Urban Gas Business Companies have been allowed to construct High Pressure Natural Gas pipelines, if they adopt the Risk Reduction Measures(RRMs) recommended by Korea Gas Safety Corporation(KGS) after safety assessment. This paper presents a Cost Benefit Analysis(CBA) method, when KGS performs safety assessment and recommends RRMs to Safety Appraisal Committee, to help the Committee make judgements on whether the proposed RRMs are reasonably practicable. We carried out quantitative risk assessment to high pressure natural gas pipelines as a case study and analysed cost benefit for the suggested RRMs. In conclusion, we found out the presented CBA method using PF was proper in Korea.

• The Korean Journal of Financial Management
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• v.14 no.1
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• pp.249-267
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• 1997

1996년 법률 제정을 거쳐 1997년 1월 1일 시행된 우리나라의 예금보험제도는 고정보험료 율방식을 채택하고 있다. 국정료율방식(國定料率方式)의 예금보험제도(預金保險制度는) 보험료 산출과 행정비용 등이 적게 들고 도입 및 운영이 용이하다는 장점이 있으나, 가입 금융기관의 도덕적위험(moral hazard)을 초래한다는 중대한 단점을 동시에 가지고 있다. 도덕적위험은 은행으로 하여금 고위험, 고수익을 추구하게 하여 결과적으로 위험이 낮은 은행으로부터 높은 은행으로 부가 이전되는 효과와 높은 위험을 가진 은행에게 오히려 낮은 보험료가 부과되는 부의 왜곡현상을 초래한다. 본 논문은 이와 같은 고정보험료율제도의 단점을 극복하는 장치인 은행위험에 근거한 차등 보험료율제도 즉, 위험조정보험료율제도의 핵심이라 할 수 있는 위험조정예금보험료(RADIP)를 실증적으로 추정해 내는데 그 목적이 있다. RADIP추정은 먼저 은행위험의 측정이 필수적인데, 은행위험인 자산수익률의 표준편차는 실제적으로 산출이 불가능하다. 따라서 이를 위해 본 논문에서는 Problem-Solving FORTRAN 프로그램인 'IMSL'을 사용한다. 그리고 측정된 은행위험을 기초로 RADIP가 최종적으로 측정되며, 이는 향후 고정료율보험료방식의 우리나라 예금보험제도가 차등료율보험료방식으로 전환될 경우 각 은행의 적정 예금보험료를 산출하는 합리적 기준이 될 것으로 생각된다.

• Korean Journal of Construction Engineering and Management
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• v.15 no.3
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• pp.113-119
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• 2014

Recently, the demand on the practical application of life-cycle cost effectiveness for design and rehabilitation of structure is rapidly growing unprecedently in engineering practice. Accordingly, in the 21st century, it is almost obvious that life-cycle cost together with value engineering will become a new paradigm for all engineering decision problems in practice. However, in spite of impressive progress in the researches on the LCC, the most researches have only focused on the Deterministic or Probabilistic LCC analysis approach (Level-1 LCC Model) at design stage. Thus, the goal of this study is to develop a practical and realistic methodology for the Lifetime risk based Life-Cycle Cost (LCC)-effective optimum decision-making at design stage.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.23 no.1
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• pp.17-26
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• 2010

This study presents a decision making process for installation of wind barrier which is used to reduce the wind acting on running vehicle on expressway. At the first stage of this study, the lateral deviations of running vehicles under side winds were computed from the commercial softwares, CarSim and TruckSim, and then the critical wind speeds for car accident were evaluated from predefined risk index. To determine whether it is needed to install wind barrier or not, cost and benefit from wind barrier are calculated during lifetime. In obtaining car accidental risk, probabilistic distribution of wind speed, daily traffic volume, mixture ratio in the volume, and duration time for wind speed range are considered. It is recommended to install wind barrier if benefit from the barrier installation exceed construction cost. In the numerical examples, case studies were shown for risk and benefit calculation and main risky regions on Korean highway were all evaluated to identify the number of installation sites.

• The Korean Journal of Financial Management
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• v.10 no.1
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• pp.77-96
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• 1993

본 논문의 연구목적은 통화선물시장(通貨先物市場)을 대상으로 선물거래를 할 경우에 발생하는 거래비용(去來費用)의 측정(測定) 및 결정요인(決定要因)들을 규명하는데 있다. 먼저 선물시장에서 광의의 거래비용을 정의하고 이를 토대로 일별 총거래비용을 추정하였다. 추정된 총거래비용의 결정요인을 추출하기 위해 중회귀분석을 수행한 결과 거래대상통화와 가격표시통화간의 만기까지의 이자의 차이와 선물가격 의 조건부분산(條件附分散)이 총거래비용에 영향을 미치고 있음을 알 수 있었다. 또한 총거래 비용에서 이자의 차이를 제외시킨 순거래비용을 분석한 결과 거래량이 순거래비용과 양(%)의 유의적인 관계가 있음을 확인할 수 있었다. 이러한 관계를 종합해 볼 때 통화선물시장(通貨先物市場)에서의 거래비용(去來費用)은 이자요인(利子要因)과, 위험을 나타내는 조건부분산(條件附分散) 및 거래량(去來量)에 의해 그 크기가 결정된다고 결론지을 수 있었다. 즉 선물거래시의 거래비용의 크기는 이자차이(利子差異)뿐만 아니라, 분산(分散)과 거래량에 의해서도 영향을 받는다고 할 수 있었다. 이같은 본 연구의 결과는 스프레드를 주된 거래비용으로 정의해온 기존의 연구와는 차별적이라는데 그 의의가 있다.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.339-351
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• 2013

In this research, we analyzed the influence factors and introducing outcomes empirically. The influencing factors over IT Outsourcing set up organizational factors(maturity of information system, the support of CEO), dealing factors(asset speciality, uncertainty, degree of using of information system), and risk factors(risk of safety/security. cost increase, loss of autonomy). The result of this study are as follows. In the organizational factors, degree of a maturity of the information system and the support of CEO were analyzed as the variables affecting the introducing outcomes positively. In the dealing factors, however, the degree of using information system was only analyzed as the variables affecting the introducing outcomes positively, while the speciality of asset and the uncertainty factors were analyzed as the variables not affecting the introducing outcomes. In the risk factors, the risk of safety/security and the increase of cost were only analyzed as the variables affecting the introducing outcomes positively, therefore loss of autonomy, was not analyzed as the affecting variables.

• Proceedings of the Safety Management and Science Conference
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• 2003.11a
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• pp.15-20
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• 2003

본 연구에서는 계절별 기후인자를 고려하여 정성적 및 정량적 위험성 평가를 실시하여 사고 시나리오를 설정하였고, 비용-편익분석을 실시하여 사고 시나리오별 안전관리 비의 효율을 분석하였다. 그 결과, 최악의 시나리오는 비정상조업에서 유지보수 오류이었고, 가능성 있는 시나리오는 HAZOP 구간#4에서 발생되는 가스 누출사고이었으며, 각 사고 시나리오에서 전체 안전관리 투자비에 대한 편익/비용은 0.043과 0.13이었다. 이때 각 사고 시나리오에서 비용 효과적인 안전관리 항목을 평가할 수 있었다.