• 한국지하수토양환경학회지:지하수토양환경
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• 제16권4호
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• pp.10-22
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• 2011

Human health risk assessment for petroleum, oil and lubricant (POL) contaminated sites is challenging as total petroleum hydrocarbon (TPH) is not a single compound but rather a mixture of numerous substances. To address this concern, several TPH fractionation approaches have been proposed and used as an effective management tool for the POL-contaminated sites in many countries. In Korea, there are also recognized needs to establish a reliable and cost-effective human health risk assessment strategy based on the TPH fractionation method. In order to satisfy the social and institutional demand, this study suggested that the comprehensive risk assessment strategy based on a newly modified TPH fractionation method with 10 fractions, the Korean Standard Test Method (KSTM)-based analytical protocol and a stepwise risk assessment framework should be introduced into the domestic contaminated land management system. Under the proposed strategy, POL-contaminated sites can be effectively managed in terms of human health protection, and remedial cost and time can be determined reasonably. In addition, more researches required to increase our understanding of environmental risks and improve the domestic management system were proposed.

• 통상정보연구
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• 제9권2호
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• pp.65-86
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• 2007

This paper reviews the properties and application methods of widely used types of risk measures, identifies the rationale and business-side effects of hedging, derives the theoretical formula of optimal hedging ratio, and analyzes the various functional aspects of VaR(Value-at-risk) as a risk measure and a hedging tool. Especially this paper focuses on the characteristics of VaR compared with other risk measures in terms of their own principal determinants and identifies its stronger aspects in the dimension of hedging strategy tools. As well, this paper provides the detailed processes deriving the optimal hedge ratios based on the distributional parameters and risk factors. In addition, this paper presents the detailed and substantial processes of estimating the minimum variance hedge ratio and minimum-VaR hedge ratio using the actual data and shows that the minimum variance hedge ratio proves helpful for many cases although it is not appropriate for the non-linear portfolio including the option contracts. We demonstrate the trade-off relationship between the minimum variance hedge strategy and the minimum-VaR hedge strategy in their hedging costs and performances through calculation of the respective VaRs and variances of unhedged and hedged portfolios and the optimal hedge ratio and hedging effectiveness values for the given long position in US Dollar with the short position in Euro.

• 경영과학
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• 제31권1호
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• pp.49-61
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• 2014

We investigate the hedging effectiveness of incorporating single-stock futures into the corresponding stocks. Investing in only stocks frequently causes too much risk when market volatility suddenly rises. We found that single-stock futures help reduce the variance and risk levels of the corresponding stocks invested. We use daily prices of Korean stocks and their corresponding futures for the time period from December 2009 to August 2013 to test the hedging effect. We also use system trading technique that uses automatic trading program which also has several simulation functions. Moving average strategy, Stochastic's strategy, Larry William's %R strategy have been considered for hedging strategy of the futures. Hedging effectiveness of each strategy was analyzed by percent reduction in the variance between the hedged and the unhedged variance. The results clearly showed that examined hedging strategies reduce price volatility risk compared to unhedged portfolio.

• 정보학연구
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• 제4권2호
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• pp.51-68
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• 2001

본 연구는 벤처기업 최고경영자의 성격특성이 경영전략에 미치는 영향을 살펴보기 위한 것이다. 성격특성은 크게 성격타입, 통제위치(locus of control), 위험감수성향 등 세 가지로 나누었으며, 이러한 성격특성의 차이에 따라서 공격형 전략을 선택하는가, 방어형 전략을 선택하는가를 측정하였다. 서울·경기지역의 벤처기업협회에 등록되어 있는 벤처기업을 대상으로 설문을 배포하여 유효한 87개 샘플을 분석대상으로 삼았다. 연구결과 A형 성격일수록, 내재론자일수록 그리고 위험감수성이 강할수록 공격적인 진입전략을 선택하고, B형 성격일수록, 외재론자일수록 그리고 위험회피성이 강할수록 방어적인 틈새시장 전략을 선택한다는 결과가 도출되었다. 또한 다중회귀모형을 통하여 독립변수의 상대적 중요도를 검증한 결과, 통제위치와 위험감수성 변수가 성격타입보다는 경영전략의 선택에 더 영향을 미치는 것으로 조사되었다.

• The Journal of Asian Finance, Economics and Business
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• 제7권4호
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• pp.9-19
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• 2020

The study aims to answer why the previous studies find the positive or insignificant effect of the CEO's abilities on firm performance. Using 34,285 CEO-firm-year panel data from the U.S. publicly traded firms drawn from the BoardEx and EXECUXOMP database during from 1992 to 2014, the results show that the fit of the CEO's generality or specialist ability with firm strategy matters on firm performance and risk. This study computes a discrete STRATEGY composite measure to construct firm strategy types, such as Prospect or Defend and use CEOs' résumés to construct an index of general skills that are transferable across firms and industries. The results find that generalist CEOs are more suitable for prospectors than specialist CEOs. Firm performance is much better when specialist CEOs work for Defenders. Although the firm performance is better too for the generalist CEOs who fit for the Prospect strategy, the firm's risk is up too. The result suggests that firms need to consider their chosen business strategy to recruit and select CEOs Our findings provide direct evidence that the match between CEO's ability and the firm's strategy is crucial to firm performance and risk.

• 디지털융복합연구
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• 제11권12호
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• pp.29-40
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• 2013

본 연구는 조직의 전략과 IS 전략 간의 적합성 요인이 IT 아웃소싱에 미치는 영향요인과 도입성과 간의 조절적 역할을 공공기관을 중심으로 분석하였다. IT 아웃소싱에 미치는 영향 요인은 조직요인(정보시스템 성숙도, CEO의 지원), 거래요인(자산 특수성, 불확실성, 정보시스템의 사용정도), 위험요인(안전성(보안)의 위험, 비용의 증가위험, 자율성 상실의 위험)으로 설정하였고, 성과요인은 경제적 효과와 기술적 효과로 설정하였으며, 조직의 전략과 IS 전략 간의 적합성 요인을 조절변수로 설정하여 분석하였다. 분석 결과는 다음과 같다. 조직의 전략 및 IS 전략의 적합성 요인은 조직요인의 하위 변수인 정보시스템 성숙도, CEO의 지원, 거래 요인의 하위 변수인 불확실성, 정보시스템의 사용정도, 위험 요인의 하위 변수인 안전성(보안)의 위험, 비용의 증가 위험, 자율성 상실의 위험 요인들과 도입성과 간에 조절적인 역할을 하는 것으로 분석되었다. 따라서 조직에서 아웃소싱을 통하여 정보기술의 도입 성과를 높이기 위해서는 조직의 전략과 IS 전략이 잘 조화롭게 추진될 수 있어야 할 것이다. 그러나 적합성 요인이 자산 특수성 요인과 도입성과 간에서는 조절적인 역할을 하지 못하는 것으로 분석되었다.

• 정보학연구
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• 제7권4호
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• pp.103-117
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• 2004

최근 경영환경의 불확실성이 커짐에 따라 신규사업 분야 진출, 해외시장 개척 등에 따른 전략 수행상의 리스크, IT 관련 리스크 등 운영상의 리스크가 점점 커지고 있으며, 이러한 리스크의 범주도 확대되고 있다. 최근에 리스크에 대한 개념은 기업의 목적(objectives) 달성에 장애가 되는 요소는 모두 리스크의 범주에 포함시키고 있다. 좀 더 세부적으로 살펴보면 기업을 구성하고 있는 기능, 프로세스의 목적을 정의하고 목적달성에 장애가 되는 요인은 모두 리스크로 정의하고 있는 차원에서 본 논문은 우리나라 기업의 효율적인 리스크관리 방안을 살펴보는 것이다.

• Environmental Analysis Health and Toxicology
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• 제20권4호통권51호
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• pp.259-271
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• 2005

Engineered nanoparticles exhibit a variety of unique and tunable chemical and physical properties. These unique properties make the nanoparticles central components and widespread potential applications in nanoindustry. However, the potential toxicities of nanoparticles have not been fully evaluated. Recently, the impacts of nanoparticles to human and environment became the emerging issue of toxicology. In this article, physicochemical properties and toxicities of carbon nanotube, fullerene, quantum dots, and other types of nanomaterials were reviewed and the strategy of risk assessment were suggested based on the frame of chemical assessment.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.1113-1122
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• 2020

The purpose of this study is to examine how the Indian banks have adjusted their risk-based capital ratios during 2009-2018 to meet the regulatory requirements. Banks can, in principle, increase their risk-based regulatory capital ratio, either by increasing their levels of regulatory capital or by shrinking their risk-weighted assets by adjusting asset growth or risk in the portfolio. We investigate banks' capital behavior by decomposing the change in the capital ratio into the contribution of its components and analyzing their variance across regulatory regimes and banks' ownerships. We further investigate how each component of the capital ratio is adjusted by the banks by breaking down them into balance sheet items. We find that the banks' capital behavior significantly differed between public and private sector banks and between the two regulatory regimes. During Basel II, banks, in general, followed a strategy of aggressive asset growth with increased risk-taking. The decline in the CRAR because of such an expansionary strategy was adjusted by augmenting additional capital. However, during Basel III, due to higher capital requirements, both in terms of quantity and quality, banks followed a strategy of cutting back their asset growth and reducing the risk in their portfolio to maintain their CRAR.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2009년도 추계학술대회
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• pp.227-229
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• 2009

Recent discussions in the active growth strategy based on getting a green environment, changes in the management of companies involved in environmental management is the analysis of various risk factors and the green growth at the same time the company's growth strategy is required. Thus, the corporate position on the green growth strategy based on risk management to analyze and respond to face reality, and respond to the scene of the applied methodology is required. In this study, contact the section of Environment to assess potential business risks that the EMEA Environment Mode Effects Analysis methodology through research and development company's in, contact the section of Environment to effectively analyze risk management by addressing the degree of risk assessment as a future-oriented and objective can manage is to provide technical management model.