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한국시스템다이내믹스학회> 한국시스템다이내믹스 연구

한국시스템다이내믹스 연구 update

Korean System Dynamics Review

  • : 한국시스템다이내믹스학회
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수록정보
18권2호(2017) |수록논문 수 : 6
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18권2호(2017년) 수록논문
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KCI등재

1Systems Thinking Approach to the Debt Service in Project Finance

저자 : 정철한 ( Jong Chol Han ) , 박민재 ( Park Min-jae ) , 엄재근 ( Eom Jae-gun )

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 5-26 (22 pages)

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Project financing (PF) has been widely used to facilitate large-scale infrastructure projects that are needed to sustain the economic growth. Since several global financial crises, financial institutions have begun to apply more stringent screening criteria for PF loans, and project sponsors have also started to focus on risk management of debts. This study identifies risk factors of a project and their impact on debt service of PF loan, utilizing causal loop diagrams of system dynamics. The debt serviceability is effectively measured by the debt service coverage ratio (DSCR), and the breach of DSCR results in the trigger of default. This study presents suggestions for policies on those risk factors in the context of causal feedbacks on the cash flow stream.

KCI등재

2기업의 Big Bath 분석에 대한 시스템 사고에 의한 접근: 한국 조선업을 중심으로

저자 : 엄재근 ( Eom Jae-gun ) , 권경헌 ( Kwon Kyung-heon ) , 김회춘 ( Kim Hoi-choon )

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 27-44 (18 pages)

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The purpose of this study is to study the structural problems regarding the Big Bath related to earnings management to companies. This paper examines the behavior of Big Bath on CEO changes and suggests alternatives to structural problems. CEO are always tempted to control earnings. This is because the ability of CEO is evaluated according to how much profit the company makes. It is natural that it is necessary to raise profits under CEO`s management, but it is very difficult actually. Earnings adjustments under accounting method can be made easily. The previous study showed a new CEO had tried to arrange the bad debts through the allowance for accounts receivable loss as much as possible. In other words, the new CEO does not have responsibility for management on the first year. Through it, a new CEO can show the improvement in earnings from the following year and receive the trust from shareholders and investors. In this study, we will look at the system structure of the Big Bath. Through this, we will look at the problems of the structure of the company and consider the alternative.

KCI등재

3시스템 사고로 본 재원일수 영향요인 연구: 진료비 지불제도를 중심으로

저자 : 최예슬 ( Choi Ye Seul ) , 정윤 ( Chung Yoon ) , 이견직 ( Lee Kyun Jick )

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 45-64 (20 pages)

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There have been various studies related to length of stay which has a direct effect on the national health expenditure so far. However, the majority of studies have only identified the factors affecting length of stay and tried to find the correlation. Based on systems thinking methods, this study tried to explain the causal relation of influencing factors of length of stay. In particular, this study examined the overall feedback structure by constructing a causal map using influencing factors to overcome the existing methodological limitations. Result suggests a fundamental revision of the lower medical cost system will be more helpful in enhancing the quality of medical services and the profitability of hospitals and in improving the financial condition of the National Health Insurance in the long term. Major contribution of this study is that this research offered a holistic view by integrating the medical fee payment system of the country, medical quality in hospitals, and the relation between the household budget for medical fees of patients and the financial condition of the National Health Insurance.

KCI등재

4Effect of Lead Time on Anchor-and-Adjust Ordering Policy in Continuous Time Stock Control Systems

저자 : Ahmet Mutallip , Hakan Yasarcan

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 65-85 (21 pages)

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Anchor-and-adjust is an ordering policy often used in stock control systems. Weight of Supply Line, the relative importance given to the supply line compared to the importance given to the stock, and Stock Adjustment Time, the intended time to close the discrepancy between the desired and current levels of the stock, are the two critical decision parameters of the anchor-and-adjust ordering policy. In this study, we conduct an extensive simulation study using a generic stock management structure and offer suggestions for the selection of these two decision parameters. The decision parameter values are significantly affected from the order and duration of the lead time.

KCI등재

5국립공원 반달가슴곰 복원사업의 사회생태시스템 동태성 분석 및 관리계획

저자 : 최윤의 ( Choi Yun Eui ) , 김정진 ( Kim Jeong-jin ) , 정대호 ( Jung Dae-ho ) , 송동주 ( Song

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 87-114 (28 pages)

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Jirisan National Park is a habitat for Asiatic black bears, but it is also a place for local residents and hikers to enjoy nature. Therefore, understanding of the social-ecological system formed by the interaction of nature and humans is becoming an important topic of the Asiatic black bear restoration project. Now, in addition to securing a quantitative population of bears, realizing the harmonious coexistence of wildlife and humans and restoring the health of the whole ecosystem and biological members, the setting of a new goal and a management plan should be established to manage the habitat environment of Asiatic black bears in consideration of the social-ecological system. In this study, we established a management plan based on the analysis of the social-ecological system of the Asiatic black bear restoration project at Mt. Jiri, using systematic thinking. The results of the study can be used to improve current management plans and establish new plans at the Species Restoration Center in the Korea National Park Service.

KCI등재

6고령사회 노인빈곤의 인과순환구조 분석

저자 : 조성숙 ( Cho Sungsook )

발행기관 : 한국시스템다이내믹스학회 간행물 : 한국시스템다이내믹스 연구 18권 2호 발행 연도 : 2017 페이지 : pp. 115-137 (23 pages)

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This study aims to analyze the causal loop structure as well as the dynamics of poverty of the elderly in Korea as one of the main problems of the aged society and to provide its measures to solve the problem from the Systems Thinking approach. To achieve these purposes, the study presents the followings. Firstly, it overviews the present conditions and effects of the population aging and the reality of poverty of the elderly in Korea and further reviews the existing studies relevant to poverty of the elderly. Secondly, it builds the causal loop diagram explaining poverty of the elderly in the process of the population aging and further analyzes the causal loop structure and the dynamics of poverty of the elderly. Lastly, it draws conclusion with the policy suggestions based on its feedback structure. This research is expected to be a meaningful material as the first study to understand poverty of the elderly and seek for its measures in the macroscopic context from the Systems Thinking approach.

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