• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.389-392
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• 2002

Local Mechanical work is researched which spending unnecessary labors and time due to unnecessary material accumulation and fabricated on site. Accordingly, this study analyzes the work process of mechanical equipments by Lean Production principles. Value Stream Analysis(VSA) uncovers waste factor of the existing method and manufactory production method using Value Stream Mapping(VSM). In the results, this study presents improvement of the existing method problems and negative factors of manufactory production.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.416-421
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• 2001

The domestic reinforcement concrete works have mainly worked the process of re-bar fabrication/assembly on site and re-bar works affected by structural safety, durability, and schedule with form work. Accordingly, This study analyzes the process of re-bar fabrication/assembly on site to apply lean production principles to construction Value Stream Analysis(VSA) is analyzed into value-adding activity and non-value-adding activity on construction process through value analysis and Value Stream Mapping(VSM). In the results, non-value-adding activity generates waste such as the activity steps, labors, equipments, materials, time, and so on. Additionally, push-driven production is investigated making low productivity from the overproduction and so on. To resolve the problems in the process, The purpose of this paper eliminates waste factor through maximizing the value-adding activity generating value added and minimizing non-value adding activity. Particularly, it makes flow production and pull-driven production through minimizing work-in-process(WIP ).

• Journal of Korea Port Economic Association
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• v.31 no.3
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• pp.1-14
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• 2015

This study utilizes Monte Carlo simulation to forecast the time charter rate of vessels, the three-month Libor interest rate, and the ship demolition price, to mitigate future uncertainties involving these factors. The simulation was performed 10,000 times to obtain an exact result. For the empirical analysis - based on considerations in ordering ships in 2010-a comparison between the Monte Carlo simulation-based stochastic discounted cash flow (DCF) method and traditional DCF methods was made. The analysis revealed that the net present value obtained through Monte Carlo simulation was lower than that obtained via regular DCF methods, alerting the owners to risks and preventing them from placing injudicious orders for ships. This research has implications in reducing the uncertainties that future shipping markets face, through the use of a stochastic DCF approach with relevant variables and probability methods.

• Korean Business Review
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• v.22 no.2
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• pp.61-86
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• 2009

The purpose of this article is to investigate the effects of cash flow and accrual, which are the elements of earnings, and those of the elements of cash flow and accrual on the consistency of cash flow and firm's value. We analyzed 4 kinds of regression models, of which the independent variables are this period's cash flow, the elements of cash flow, accrual, and the elements of accrual, and the dependent variables are the next period's cash flow, and the stock price at the end of financial statements disclosure months, respectively. The sample firms were the manufacturing companies listed on the Stock Exchange 1980 through 2006, of which the fiscal year ended in December. And, the results of the analyses are as follows: Cash flow and accrual are shown to have significant relationships with cash flow consistency and the evaluations of firms' value. And, the elements of cash flow or accrual proved to have more influence than the total amount of them, on cash flow consistency and the evaluation of firms' value. Also, the results present that some of the elements of cash flow and accrual differently affect cash flow consistency and the evaluation of firms' value. Accordingly, this study indicates that each of the elements of cash flow and accrual needs to be considered respectively rather than the total amount of them, in the case that cash flow and accrual are used in the decision-making concerned with the forecast of cash flow and the evaluation of firms' value. This study also shows that each element of cash flow and accrual needs to be used differently for cash flow forecast and the evaluation of firms' value.

• The Korean Journal of Financial Management
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• v.14 no.2
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• pp.21-55
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• 1997

본 연구는 기업규모, 장부가치/시장가치 비율, 순이익/주가 비율, 현금흐름/주가 비율, 레버리지 등 기본적 변수를 사용하여 주식수익률에 유의적인 변수를 확인하고, 또한 Fama and French(1993) 등에 의해서 제시된 다요인모형(multi-factor model)이 한국주식시장에서 적용가능한 지를 살펴보았다. 이를 위하여 본 연구에서는 Fama and MacBeth(1973)의 횡단면회귀모형과 Black, Jensen, and Scholes (1972)의 시계열모형을 사용하였으며, 실증분석결과를 요약하면 다음과 같다. 먼저 횡단면분석결과에 의하면, 장부가치/시장가치 비율(BE/ME), 현금흐름/주가 비율(C/P) 등이 주식수익률의 횡단면적 차이를 설명할 수 있는 유의적인 변수로 나타났다. 그리고 통계적 의미에서는 1월효과가 존재한다고 보기 어려우나, 경제적 의미에서 1월효과가 존재하는 것으로 생각된다. 시계열분석결과에 의하면, 시장요인, 기업규모요인, 장부가치/시장가치요인(또는 현금흐름/주가요인) 등의 3요인에 의해서 국내 주식수익률의 공통적 변동을 잘 설명할 수 있다. 즉 국내 증권시장에서도 Fama and French(1993)의 3요인모형이 성립될 수 있는 것으로 판단된다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.527-530
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• 2002

The purpose of this study is to present an improvement of the form work process. The current slab form work has waste factor by unnecessary process and not complete integration with the finishing process. Therefore the study used value stream analysis methodology for effective improvement of slab form work process. The main contents of the study are as follows; 1) Understanding of non-value adding activities in existing slab form work process 2) Process integration by value stream mapping 3) Effect analysis of time-cost reduction. The study recommends that, as a future research, development of tool and technique for the non-value adding activities are eliminated in building construction.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.580-587
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• 2016

This paper examined the relationship among corporate cash flow, its accruals, and its factors with its continuity of profit and corporate value by regression analysis of KOSDAQ based midsize manufacturing enterprises for 11 years from 2004 to 2014 year. Through this empirical analyze, corporate operators can have a chance to find opportunities to improve the efficiency of business operations, and to the potential investors, it can give the perspective through providing the basic information for the rational investment decisions. Through this analysis, its cash flow, accruals and its factors showed continually a significant relationship with its corporate operating profits and its market values. Thought out the relation analysis, its cash flow, its accurals and the factors of the accruals, account receivables, inventories affected the positive(+) impact on its business profits. But, its account payables affected negative(-) impact on its business profit. The other hand, the cash flow from operating activities and accruals related to capitalization of assets and liabilities fluctuations affected a positive(+) effect on the company market value.

• Journal of Information Management
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• v.32 no.2
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• pp.54-71
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• 2001

This paper analyzes the role of technology valuation in licensing, a commonly used type of transaction of technology, and reviews methods to analyze information on technology valuation for technology licensing. It contemplates the concepts, types and practical application of cost-based valuation, market-based valuation, discounted cash flow, and economic analysis. It shows that each method considers how to share profits associated with technology between licensor and licensee in a fair and reasonable manner when we apply any method to technology licensing.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.21-24
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• 2011

본 연구는 기업규모, 장부가치/시장가치 비율, 순이익/주가 비율, 현금흐름/주가 비율, 레버리지 등 기본적 변수를 사용하여 주식수익률에 유의적인 변수를 확인하고자 하였다. 이를 위해 본 연구에서는 횡단면 자료와 시계열 자료를 결합한 패널자료(panel data)를 이용하여 패널자료분석방법으로 연구모형을 실증적으로 분석하였다. 일반적으로 패널자료를 사용하면 Hsiao(2003)가 지적한 바와 같이 표본의 크기를 확대시켜 자유도를 증가시키고 이론적으로 설명변수간 다중공선성(muti-collinearity) 문제를 완화할 수 있다. 실증분석결과에 의하면 기업규모(SIZ), 장부가치/시장가치 비율(B/M), 순이익/주가 비율(E/P), 현금흐름/주가 비율(C/P) 등이 주식수익률의 횡단면적 차이를 설명할 수 있는 유의적인 변수라 할 수 있다.

• Proceedings of the KAIS Fall Conference
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• 2003.06a
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• pp.143-145
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• 2003

본 논문은 벤처기업을 합리적으로 평가할 수 있는 평가모형과 방법을 제시할 목적으로 코스닥 등록기업 중 무작위추출에 의해 선정된 99개 빈처기업을 분석표본으로 삼았으며 기업별 시장주가로 2000년 1월부터 2001년12월까지의 최고, 최저, 평균주가를 추출하였다. 본 논문에서는 벤처기업가치평가 모형으로 실물옵tus 평가 모형 쿵 성장옵션모형을 이용하여 각 기업의 현재가격, 행사가격, 변동성, 행사기간, 무위험이자율의 5개 변수로 벤처기업의 옵션가치를 산출하고 여기에 잔존가치를 현금흐름 할인법으로 한인 산출하여 그 값을 합하여 기업가치를 평가하였고 또한 현금흐름 할인법(DCF)을 이용하여 기업가치를 평가하였다. 여기에 사용된 각종 파라미터 값은 우리나라 벤처기업과 산업의 자료를 중심으로 추출하여 본 모형에 적용, 기업의 가치를 실증적으로 평가하였다.