• The Korean Journal of Financial Management
• /
• v.11 no.1
• /
• pp.97-122
• /
• 1994

시장균형상태(市場均衡狀態)의 조건(條件)하에서 주식의 기대수익률을 설명할 수 있는 가격결정(價格決定) 요인(要因)이 무엇을 의미하는가를 규명하는 일은 증권시장을 설명하기 위한 중요한 과제이다. 본 논문의 연구 목적은 재정가격결정모형(栽定價格決定模型)을 적용하여 주식수익률에 대한 요인(要因)을 분석(分析)하고, 최적 포트폴리오 구성 주식수와 유의적인 가격결정 요인 및 이들이 설명하는 경제적(經濟的) 의미(意味)를 찾는데 있다. 특히 ML방식의 요인분석 과정에서 헤이우드 상황(狀況)(Heywood case)을 확인하고 정밀한 요인(要因)의 추정을 위하여 이를 제거하였으며, 헤이우드 상황(狀況)이 미치는 영향을 분석하였다. 실증분석(實證分析) 결과(結果) 요인분석에서 최적 포트폴리오 구성 주식수는 35개이며, 이때의 가격결정(價格決定) 요인수(要因數)는 $2{\sim}3$개 정도이다. 그리고 주식의 가격결정요인으로 일관성 있게 설명하는 경제변수(經濟變數)로는 종합주가지수, 산업생산성지수, 실업률지수, 기업소규모지수 등이다. 그리고 Heywood case 발생 표본은 균형모형 설정에 교란요인이 됨을 검증하였다.

• The Korean Journal of Applied Statistics
• /
• v.29 no.4
• /
• pp.753-771
• /
• 2016

Value at Risk (VaR) is widely used as an important tool for risk management of financial institutions. In this paper we discuss estimation and back testing for VaR of the portfolio composed of KOSPI, Dow Jones, Shanghai, Nikkei indexes. The copula functions are adopted to construct the multivariate distributions of portfolio components from marginal distributions that combine extreme value theory and GARCH models. Volatility models with t distribution of the error terms using Gaussian, t, Clayton and Frank copula functions are shown to be more appropriate than the other models, in particular the model using the Frank copula is shown to be the best.

• Korean Journal of Construction Engineering and Management
• /
• v.2 no.2 s.6
• /
• pp.68-80
• /
• 2001

While opportunities for international construction firms have been growing with globalization, the risk of international construction projects is significantly increasing in severity and complexity. However, the traditional risk management approach in the construction industry has maintained a profit focus. In addition, this approach has not considered the overall risk at the corporate level, but rather has focused only on the risk of individuals at the project level. Corporate risk management should be implemented from the initial stages of new project selection. This paper suggests the Multi-criteria Integrated Systematic Analysis as a strategic decision-making tool for international construction contractors. The model integrates the multi-criteria of risk, return, and efficiency to choose the optimal set of new portfolios at the corporate level. This model also introduces the Value at Risk (VaR) concept to the international construction industry to present the total risk at the corporate level. To validate this model, this paper tested an experimental case study using the historical data of a global general contractor.

• Proceedings of KHEA Conference
• /
• 2003.04a
• /
• pp.193-193
• /
• 2003

• Korean Journal of Construction Engineering and Management
• /
• v.15 no.6
• /
• pp.105-112
• /
• 2014

The objective of this study is to examine the relationship between the degree of business diversification of a construction company and two of the indicators that represent financial stability, namely, a current ratio and a debt ratio, in order to draw policy implications. The current ratio and the debt ratio were used as variables that represent financial stability of a construction company. Berry-Herfindahl Index was used to measure the degree of business portfolio diversification of a construction company. For the analysis, quarterly time series data were retrieved from the financial information disclosure system of Korea's Financial Supervisory Service for the period between the first quarter of 2001 and the third quarter of 2013. The analysis results showed that a higher current ratio and a debt ratio led to a greater extent of business diversification. A higher level of business diversification led to a higher current ratio and a lower debt ratio. It was also shown that the impact of business diversification on the current ratio and the debt ratio outweighed the impact of changes in the current ratio and the debt ratio on business diversification. Meanwhile, an increase in the level of business diversification showed a quite positive effect as it raised the current ratio and lowered the debt ratio of a construction company. These findings suggest that diversification of business portfolio is essential for construction companies to strengthen their financial stability.

• Journal of Technology Innovation
• /
• v.26 no.4
• /
• pp.1-28
• /
• 2018

With the growing number of emerging carmakers, automotive parts manufacturers have to penetrate into emerging markets. They can provide large existing carmakers with fully customized parts because of economies scale, but cannot do this for small emerging carmakers due to their small and highly volatile volume order. Once the order by an emerging carmaker is placed, a part manufacturer is exposed to high risks both of decrease in profit margin and high opportunity cost. The platform-based mass customization can be a solution for cost reduction, but the risks of volatility in volume hard to manage. Tackling this issue, we presents a method of optimizing the product portfolio to maximize profits while managing volatility of volume order by emerging carmakers at an affordable level. It is the first robust product portfolio method to keep the scaled deviation of profits at a fixed level under volume order uncertainty. Also, the effect of on the platform-based mass customization on cost is considered. This model can be a building block of conservative market penetration as well as product development strategy while minimizing the financial risks. We conducted an empirical study of a part manufacturer targeting on eighteen automobile manufacturers in North America, Europe and Asia with it powered lift gate.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.07a
• /
• pp.195-196
• /
• 2014

취업열기가 뜨거워지고 있는 가운데 취업시장의 문턱에 들어서는 학생들은 본인의 이력관리를 위해 수많은 노력을 하고 있다. 이 시스템은 교내의 모든 학생들이 미래 직업을 준비할 수 있도록 하고 학교생활을 하는 과정에서 자기성찰의 기회를 제공하여 자기 계발 방향을 찾도록 하는 것이 주된 목적이다. 따라서 본 시스템은 취업시장의 문화를 혁신하고자 하는데 목적이 있다. 본 개발 시스템은 학생의 대내외적인 활동에 활용되는 모든 자료를 체계적으로 정리 및 관리할 수 있는 시스템으로 대학에서 취업을 목적으로 진행하는 프로젝트 관련수업의 결과물과 포트폴리오 관리에 목표를 두고 주로 학생의 취업연계 기능에 초점을 맞추어 개발되었다. 학생들은 학생간의 포트폴리오 정보를 공유하고 해당 시스템의 평가모듈을 통해 교수의 조언과 평가를 받아 보다나은 결과물을 창출 할 수 있다. 이렇게 학생, 교수, 기업이 서로 의사교류를 통해 원만한 관계를 유지할 수 있으며 학생과 기업 간의 win-win 효과를 얻을 수 있다.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.4 no.2
• /
• pp.152-161
• /
• 2009

Insider threat is becoming a very serious issue in most organizations and management is responsible for security implementation. This study is to develop a personnel security management indicators in the areas of Personnel Assurance, Personnel Competence, and Security Environment and protection against insider threats. In this study, the information security management system.

• Product Safety
• /
• s.63
• /
• pp.38-40
• /
• 1998

퍼실리티 매니지먼트(facility management;FM)란 새로운 경영관리 기법으로 FM은 토지$\cdot$오피스$\cdot$시설$\cdot$설비$\cdot$기타 경영자산을 단순히 유지하고, 관리하는 것 뿐만 아니라 사업 포트폴리오의 관점에서 경영자산의 효과적인 활용이나 재분배를 도모하는 것을 의미한다.

• The Korean Journal of Financial Management
• /
• v.23 no.2
• /
• pp.1-25
• /
• 2006

This paper studied the performance of momentum strategy and contrarian strategy based or past stock return ratio of Korean stock market. The comparative study shows that the volatility of stock markets that can be found the performance of momentum strategy is smaller than that of emerging stock market. Accordingly, This paper examines that the performances of momentum strategy and contrarian strategy are affected by the larger volatility in Korean stock market. Further analysis using the 6 years sub-portfolios reveals that the momentum strategy is significant only during 1980 to 1986 time period when it had the least market volatility. Additionally, we investigate whether firm-level volatility as well as market volatility influence on the performance of contrarian strategy, and figure out that the momentum strategy is significant for the portfolio composed of firms with smaller volatility for previous period, while not significant for the portfolio composed of firms with larger volatility.