• Journal of Digital Convergence
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• v.20 no.1
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• pp.155-163
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• 2022

The ecology of Korean Production Industry has been changing rapidly. Small & medium size independent production companys have been shrinking in market share while big size production companys are taking larger share than before. This study intends to show the dramatic change of the ownership in Korean production industry and the consequencies. When considering positive development of production industry, small & medium size independent production companys should play important roles but the environment of the industry is not easy for them. The implication of this study is that small & medium size independent production companys have to search for survival strategies to adapt environmental change.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.149-157
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• 2017

This study investigated one of the contemporary financial issues that is still being debated among governmental policy makers, corporate managers, and investors in the domestic capital market. We attempted to identify the most optimal level of cash holdings for firms during the most updated fiscal years (from 2011 to 2015). The study utilized empirical methodologies, such as ANCOVA and RANCOVA, with respect to the 'inter-' and 'intra-industry' analyses for KOSPI-listed firms. Regarding the first hypothesis testing for inter-industry influence, we revealed with statistical significance that there were differences; however, there were only 3 pronounced industries among the 25 industries sampled in this study. Regarding the second hypothesis, only a few (i.e. two) industries showed no statistically significant intra-industry influence. Based on our results, most KOSPI-listed firms still seem to be searching for their optimal levels of cash reserves. Hence, we can anticipate that the value maximization as a corporate goal can be achieved after adjusting the current levels of their cash holdings according to the optimal points.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.4
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• pp.446-453
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• 2018

The study examines corporate research & development (R&D) expenditure in modern finance. Firms may face one of the essential issues to maintain their optimal levels of R&D expenditures in order to increase corporate profit. Accordingly, financial determinants that may influence R&D spending are statistically tested for firms listed on the KOSPI stock market during the period from 2010 to 2015. Financial determinants which may discriminate between firms in high-growth and low-growth industries are examined on a relative basis. Explanatory variables including one-period lagged R&D expenses (Lag_RD), cross-product term between the Lag_RD and type of industry (as a dummy variable), and advertising expenses (ADVERTISE) significantly influenced corporate R&D intensity. Moreover, high-growth firms in domestic capital markets showed higher Lag_RD, profitability (PROF) and foreign equity ownership (FOS) than their counterparts in low-growth sectors, whereas low-growth firms had higher market-value based leverage (MLEVER) and ADVERTISE. Overall, these results are expected to influence decision-making of firms concerning the optimal level of R&D expenditure, which may in turn enhance shareholder wealth.

• Journal of Industrial Convergence
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• v.7 no.1
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• pp.63-82
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• 2009

Many The purpose of this paper is to revisit the existence of monthly effect in the Korea Stock Market. We conducted additory test about KOSPI200 from January 1990 to December 2002 and about KOSDAQ from January 2002 to December 2006. The other main focus is examine Size Effect in Korean Stock Market. We also indicate Information hypothesis throught our findig. Data used in this paper are monthly returns of KOSPI and KOSDAQ from 1980 to 2006. As a result, Evidence is provided that monthly abnormal returns in January have large means relative to the remaining eleven months. The relation between abnormal returns and size is always negative and more pronounced in January than in any other month-even in years. More than fifty percent of the January premium is attributable to large abnormal returns during the first week of trading in the year particularly on the first trading day. This finding is highly significant in the mall sized capital stock of KOSPI market. We found January effect and Size Effect in the KOSPI market, but we didn't find January effect and Size Effect in the KOSDAQ market and KOSPI200.

• Journal of Korea Society of Digital Industry and Information Management
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• v.5 no.3
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• pp.19-28
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• 2009

Computer system performance has always had the possibility of affecting business profitability, but with the advent of the World Wide Web where customers interact directly with Web servers, response time can have a direct and dramatic impact on business revenue. This paper is written in the operation environment and system analysis of HTS(Home Trading System) running K Securities. This paper also shows the method for performance improvement through investigation and analysis for the overall systems resources whether HTS has an appropriate performance or not. Performance analysis includes specially CPU analysis, Memory analysis, Disk Input/Output analysis and application analysis. Besides providing more detailed server specification for expansion from now on, system performance can be maintained with effect in the future. Through this study it is possible to manage the performance of HTS more easily and to solve problems such as a bottleneck more quickly.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2001.11a
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• pp.187-190
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• 2001

음성정보 산업은 오래 전부터 정보화 사회의 핵심 분야로서 잠재가치를 인정받아 왔지만, 불행히도 기술개발 및 시장 수요가 뒷받침되지 않아 먼 미래의 산업으로 인식되어 왔다. 그러나 최근 음성처리기술이 가시화 되고 인터넷 이용이 활성화되면서 보이스포탈, 음성 증권정보 등 음성과 인터넷이 결합된 서비스가 급격히 증가하고 있다. 현재 인터넷의 사용이 많아지면서 회원가입을 받는 사이트들이 늘어나게 되었다. 본 연구에서는 이러한 웹사이트의 회원가입에서의 고객의 신분 확인 및 회원의 검증과 청소년 고객의 고의적인 오류자료 입력 방지와 전화로 고객을 응대하는 업무가 집중적으로 많은 콜 센터 등의 응용 프로그램 환경에 있어서 전화 통신의 편리성, 응대 시간 축소, 전화 업무 자동화 기능 등을 가능하게 하기 위한 기술의 개발에 대해 연구하였다.

• Journal of Korean Institute of Industrial Engineers
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• v.43 no.1
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• pp.30-38
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• 2017

Contingent convertible (Coco) bonds have been issued in 2009 after financial crisis for improvement of capital structure in international banks. With more focuses on coco bonds in financial market, academic fields have paid attention to the instrument for optimal structure for issuers and rational pricing methodologies. However, there is a crucial discrepancy in prevailing pricing model and their target subjects. Though most of the coco bonds have been issued based on accounting triggers, many of existing models are based on market prices and therefore exhibit limitations in practical use. In this paper, a more practical pricing method for accounting triggered coco bonds is proposed using stochastic equity ratio process. Empirical results tested on coco bond issued by JB financial group supported the proposed approach with favorable performance in tracking actual market prices.

• The Korean Journal of Financial Management
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• v.15 no.2
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• pp.23-53
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• 1998

본 연구의 목적은 우리나라 상장기업들의 기업규모 및 시장지배력이 연구개발투자활동에 미치는 영향을 분석하는데 있다. 가설검증을 위하여 1997년 3월말 현재 한국증권거래소에 상장된 72개 제조기업을 대상으로 상관분석과 회귀분석을 실시하였다. 실증분석결과 연구개발투자 활동은 기업규모와 관련성이 크며, 기업규모가 일정 크기에 이를 때까지는 연구개발 활동이 증가하지만, 일단 그 선을 넘어서면 기업 규모에 비례해서 증가하지는 않는 것으로 나타났다. 또한, 시장지배력을 나타내는 시장집중률 및 시장점유율과 연구개발 활동간에는 유의한 부(-)의 효과가 존재하는 것으로 나타났다. 그리고, 매출액성장률과 연구개발투자 활동간에는 분명한 관계를 확인할 수가 없었으나, 기술기회는 연구개발 활동과 예상대로 정(+)의 관계가 있는 것으로 나타나 성장기회가 높은 산업일수록 연구개발 활동이 많은 것으로 나타났다. 이 연구는 기업의 규모 및 시장지배력이 연구개발투자 활동에 미치는 영향을 우리나라 기업을 중심으로 실증적으로 검증함으로서 기술혁신을 위한 산업조직 및 개별기업의 연구개발 투자를 위한 의사결정과 관련한 시사점을 제공한 점에 의의를 찾을 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.943-945
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• 2022

2030 세대의 주식시장 참여율은 갈수록 늘어나는 데에 반해 증권업의 높은 진입 장벽과 부족한 정보로 손실을 보는 경우가 적지 않다. 이러한 상황에서 정보의 주체인 개인이 본인 데이터에 대한 권리를 가지고, 본인이 원하는 방식으로 데이터를 관리하는 패러다임인 '마이데이터' 서비스가 최근 떠오르고 있다. 본 논문에서는 위의 문제를 해결하기 위하여 마이데이터를 토대로 특정 주식 종목과 유사한 종목들을 먼저 선별한 후 순수익이 높게 예측되는 종목을 최종 추천하는 모델을 제안한다.

• The Journal of the Korea Contents Association
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• v.9 no.8
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• pp.208-218
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• 2009

Entertainment industries have recently shown continuous growth as a potential high value-added market and are being acknowledged as the most promising high-efficiency industry. The following case study offers the understanding of the financial situation and the diversification of three management companies like SM entertainment, Yedang entertainment, and Sidus HQ. I analyzed through IR which is on homepage of each company, audit reports and some articles of news papers, etc. The results of this study will show that diversification of three companies are relatively stable and make efforts to expand their activities.