• 대한인간공학회지
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• 제31권1호
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• pp.157-163
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• 2012

Objective: This study is to understand medical management method in shipbuilding industry. Background: In shipbuilding industry, medical management for prevention of work-related musculoskeletal diseases due to limitations of engineering measures may be important measure. Results: Medical management of musculoskeletal diseases can be divided into primary, secondary, tertiary preventions. Primary preventions consist of symptom survey, appropriate work placement with work capacity evaluation, health promotion. Second preventions are early detection of symptomatic patient and appropriate treatment. Tertiary preventions are rehabilitation treatment and early return-to-work by return-to-work evaluation. In addition, patients with psychological counseling for emotional problems are needed. Conclusion: Medical management measures such as improving the work environment to be made are expected to exert greater effects.

• Journal of applied mathematics & informatics
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• 제18권1_2호
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• pp.145-158
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• 2005

We formulate a stochastic control problem on proportional reinsurance that includes impulse and regular control strategies. For the first time we combine impulse control with regular control, and derive the expected total discount pay-out (return function) from present to bankruptcy. By relying on both stochastic calculus and the classical theory of impulse and regular controls, we state a set of sufficient conditions for its solution in terms of optimal return function. Moreover, we also derive its explicit form and corresponding impulse and regular control strategies.

• 산업경영시스템학회지
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• 제35권4호
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• pp.219-226
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• 2012

Recently real-estate investment business is standing out as a new plan for creation of source of income. In this paper, we suggested appropriate real-estate investment strategy through the reconstruct case study of existing one-storied building. That is, we showed the efficient process of decision and propel to reconstruct and the key points for lease business and post management after building completion. Also, we analyzed the rate of return of commercial building investment in order to find its optimum dealing time. Therefore the results of this paper are expected to be a help to old ages and persons laying plans for a similar business.

• 한국컴퓨터정보학회논문지
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• 제21권11호
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• pp.151-158
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• 2016

This study analyzes the stock market reaction of disclosure of technological information using events which are collected in the Korean stock market for the thirteen-year period between January 2002 and December 2014. We find that abnormal return on the disclosure day of full sample firms is positive and statistically significant. However, abnormal return of high R&D intensity subsample is a larger positive number than that of the low one. Using a longer window, it shows that low R&D intensity negatively decreases the long term performance after the adoption of new technological information. The empirical evidence of the studying is expected to serve as a good judging guide-line for the investors.

• 재무관리연구
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• 제24권1호
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• pp.85-107
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• 2007

본 연구는 펀드의 수익률과 현금흐름 간에 관계를 분석함으로써, 펀드의 현금흐름에 의한 주식시장 교란이 있는지를 분석하였고, 주식형 펀드의 수익률에 영향을 줄 것으로 예상되는 결정요인들을 통계적으로 분석해 보았다. 본 연구의 표본기간은 2005년 4월부터 2006년 3월까지로 주가상승기라 펀드의 현금흐름이 뚜렷할 것으로 예상되어 설정하였다. 연구대상은 월별로 116개 펀드이며, 연구기간이 12개월이므로 최종 표본펀드는 1,392개가 된다. 먼저, 수익률과 결정요인 등과의 분석에서는 모든 펀드 유형에서 펀드의 성장성(GRW)이 증가할수록 펀드의 수익률과 초과수익률이 증가하는 것으로 나타났다. 그러나 수익률과 현금흐름과의 관계에서는 성장추구형 펀드만 현금흐름이 수익률에 대해 영향을 주었다. 이는 안정주식형 펀드는 주식편입비가 낮기 때문에 수익률이 현금흐름에 영향을 크게 안 받는 것으로 보이며, 고성장 추구형 펀드는 수익률에 미치는 현금흐름의 영향이 기대와 비기대의 혼재나 기간시차의 혼재로 인해 영향을 받지 않는 것으로 추론된다. 추가로 펀드수익률(FR)에 현금흐름 시차가 미치는 영향을 분석한 결과, 펀드의 전기 현금흐름이 펀드의 당기 수익률에는 영향을 미치지 않았다. 이는 아직까지 국내 펀드시장에서 펀드의 현금흐름에 의해 주식시장이 왜곡되어 펀드수익률의 상승으로 이어지지는 않는 것으로 보인다. 국내 펀드시장이 일천하여 향후 더 많은 표본으로 진보된 연구들이 수행됨으로써 펀드산업이 발전되어야 할 것이다.

• 대한토목학회논문집
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• 제42권2호
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• pp.219-227
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• 2022

우리나라는 고령화 현상이 가속됨에 따라 고령자 관련 교통사고 문제가 지속적으로 대두되고 있으며, 이를 개선하기 위한 노력은 시행 중이나 효과가 뚜렷하지 않다. 따라서 본 연구에서는 통행특성 및 인센티브 정책이 고령운전자의 운전면허증 반납에 미치는 영향을 검토하였다. 분석결과, 고령운전자의 주 구성원인 남성, 고 연령층, 낮은 대중교통 의존도, 긴 운전시간, 통행횟수가 많은 집단의 경우, 운전면허증 반납의사가 낮은 것으로 확인된다. 반면, 금전적 인센티브는 운전면허증 반납의사에 긍정적 역할을 하며, 이를 제공하는 방식에 따라 반납의사 정도에 차이가 존재하는 것으로 분석되었다. 다만, 운전면허 반납의사가 낮은 집단에서는 그 효과가 미미할 것으로 예측된다. 분석결과를 종합해보면, 현재의 정책 하에서는 고령운전자로 인한 사회적 문제를 개선하기에는 한계가 존재하는 것으로 예측되는 바 고령운전자의 운전면허증 반납 유도를 위한 접근방법에 대한 재검토가 필요하다.

• The Journal of Asian Finance, Economics and Business
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• 제7권9호
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• pp.117-123
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• 2020

The objective of this study is to examine whether the four-factor model explains variation in the expected return of stocks on the Stock Exchange of Thailand. The study used individual monthly data for all stock with continuous trading on the Stock Exchange of Thailand. The study used sample data of 429 listed stocks to construct 8 portfolios bases on the industries. In this study, subject to market factors such as size, the book-to-market ratio, the market beta, and stock liquidity are taken into account. The Empirical analysis reveals that not all of the variables included in the four-factor asset pricing model are statistically significant to do affect the formation of the rate of return on stocks calculated on a monthly basis. The result shows that market beta, stock liquidity, and the book-to-market ratio has a significant increase in the rate of return on shares listed on the Consumer Products. It is therefore apparent that at least in respect of monthly analysis, the predictions of bass models in the field of modern finance theory systematic risk measured by the beta coefficient did play a significantly important role in the formation of the rate of return on the Stock Exchange of Thailand.

• 유통과학연구
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• 제21권10호
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• pp.77-84
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• 2023

Purpose: This study aims to determine the impact of green accounting on the distribution of company financial performance. Green Accounting is seen as an accounting approach that considers the environmental impact of business activities and the distribution of financial performance which is expected to provide great benefits to the company. Research Design Data and Methodology: The population of this study is 168 manufacturing companies listed on the Indonesia Stock Exchange from 2018 to 2020. The research theory uses the Legitimacy Theory and the Shareholder Theory. Research data were analyzed using multiple regression models with purposive sampling. Green Accounting in this study uses environmental cost proxies using Return on Capital Employed (ROCE). Financial performance uses the Return on Equity (ROE) proxy. Results: research shows that the influence of green accounting can provide important input to operational managers in manufacturing companies in making decisions regarding environmental costs and environmental protection that will provide economic benefits for the company. In addition, these findings also clarify the great benefits of green accounting policies for a company's production process. Conclusion: Green Accounting has a long-term impact through the company's financial performance. Green Accounting can be the basis for companies in deciding whether to invest or not.

• 디지털융복합연구
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• 제19권12호
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• pp.175-182
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• 2021

본 연구는 최근 발표된 "코스피 200 ESG 지수"를 중심으로 과연 "코스피 200 ESG 지수"가 주가와의 관련성이 있는 지를 살펴보고자 한다. 구체적으로 코스피 200 ESG 지수의 편입 기업이 지수편입으로 인한 주가의 평균초과수익률과 누적평균초과수익률을 나타내는 지 실증 분석하였다. 연구방법은 정상적 기대수익률을 OLS에 의해 추정된 계수를 이용한 시장모형(market model)에 의한 수익률을 사용하여 사건연구를 수행하였다. 연구결과를 요약해보면 다음과 같다. 첫째, 기업의 코스피 200 ESG 지수 최초 편입은 유의한 양(+)의 평균초과수익률과 누적평균초과수익률을 나타냈다. 둘째, 기업의 코스피 200 ESG 지수 편입은 유의한 양(+)의 평균초과수익률과 누적평균초과수익률을 나타냈다. 본 연구를 통하여 시장에서 투자자들이 단순히 재무정보만이 아닌 비재무적 정보로서 ESG 지표에 대한 인식을 하고 있다는 점을 확인할 수 있었다. 더불어 투자자는 ESG지수를 투자를 위한 정보로 인식한다는 점을 실증적으로 분석한 점이 본 연구의 기여점이라 할 수 있다. 본 연구는 최신의 ESG 지수를 이용했다는 점에서 차별점이 있지만, 동시에 연구기간이 짧고 연구표본이 제한적이라는 점에서 한계점을 지닌다.

• 기술혁신연구
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• 제5권1호
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• pp.206-222
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• 1997

The conventional analysis with which justifies government intervention of the private sector's innovation activities is the market failure approach. According to such analysis, fund allocation through autonomous market mechanisms is not optimal in technology financing because of the disparity between the desirable level of investment for society as a whole and that for private firms. To optimize the fund allocation, public policies such as subsidy, preferencial loan and venture capital investment programs are designed for technology development projects performed by private firms. They, however, have not been effective in increasing private investment for such projects. In most cases, it was found that little considerations given to the relationship between uncertainty embodied in technology development projects and each types of financing. With respect to optimizing fund allocation, technology development projects should be financed by different means according to their probability of success and the expected value of technology. Employing various theoretical models on financing decision-making we verify here that technology development projects to be supported by commercial banks or venture capital institutions is limited contingent upon levels of uncertainty adn expected value. Under the assumption that financial institutions are risk averse, loan or investment can be available only if the probability of success of the project is higher than the probability premium and the current market rate of interest. Therefore, the projects that have lower probability of success and/or small expected return are excluded from commercial loan or investment programs. However, the remaining projects, whose probability of success is low but with high expected return, may be applied under government subsidy programs. To achieve optimality of fund allocation and to activate technology financing, we conclude that there should be a systematic division of role among financial institutions including government commercial banks, and venture capital institutions.