• Convergence Security Journal
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• v.15 no.1
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• pp.69-82
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• 2015

This dissertation introduce how to react against the cybercrime and analysis of malware detection. Also this dissertation emphasize the importance about efficient control of correspond process for the information security. Cybercrime and cyber breach are becoming increasingly intelligent and sophisticated. To correspond those crimes, the strategy of defense need change soft kill to hard kill. So this dissertation includes the study of weak point about OS, Application system. Also this dissertation suggest that API structure for handling and analyzing big data forensic.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.213-219
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• 2017

In recent years, the definition of corporate governance is a stakeholder-oriented corporate governance that can meet the needs of sustainability management and corporate social responsibility. The purpose of this study is to empirically analyze the effect of corporate governance on employees and creditors corporate governance on earnings management by using regression analysis. The results show that the corporate governance of employees and creditors plays a role in reducing the simultaneous profit management of discretionary accruals, which is the accrual of asset impairment loss, which is the accrual of negative I could confirm. The results of the empirical analysis show that stakeholder-centered corporate governance can play a role in controlling managers' behavior and market. In addition, the results of this study suggest that the responsibility of stakeholders as corporate governance is important for sustainable management of modern corporations where corporate social responsibility is important.

• The Korean Journal of Financial Management
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• v.23 no.1
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• pp.165-191
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• 2006

I examine the relationship between values and security designs of MBS(mortgage-backed securities), using four different types of them. To this end I consider a pass-through and three different kinds of CMOs(collateralized mortgage obligations). It turns out that the pass-through has the lowest value and that, among CMOs, that of a senior-mezzanine-subordinate design has the highest value. This implies that CMOs of a simple and extreme design, like that of a senior-subordinate design, are not likely to be the best CMOs for risk averse buyers. Another critical finding is that the optimal security design of CMOs or MBS does exist in the form of an interior solution. This indicates that MBS issuers could charge higher prices of MBS given their underlying mortgages by tailoring MBS security designs to the needs or utilities of MBS buyers, usually by removing and combining risks of component tranches of MBS. Accordingly a thorough study of realistic utility functions of MBA buyers could enhance the values or prices of MBS to be issued.

• The Korean Journal of Financial Management
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• v.21 no.2
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• pp.153-181
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• 2004

This study is to explore whether the relationship among financial markets changed according to financial development. For this study, data analysis was conducted through analytic methods incorporated structural breaks such as Zivot and Andrews'(1992) unit root test Gregory and Hansen's(1996a,b) cointegration test, etc. In study results, it was found that dynamic relationship between stock price and interest rate was changed from negative to positive after the structural break(Oct 1999). It may be resulted from the fact that asset substitutability between stock and bond was increased since stock investment became popularized The negative relationship between stock price and exchange rate was reinforced after the structural break(the foreign currency crisis). Also, the negative relationship between interest rate and exchange rate was strengthened after the structural break(Oct. 1999).

• Journal of Venture Innovation
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• v.2 no.2
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• pp.117-126
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• 2019

This study conducted correlation analysis and multiple regression analysis using financial statements, loan structure, ROA and ROA volatility of domestic commercial banks, regional banks and special banks for the past five years (2012 ~ 2016). The result is as follows. First, as a result of correlation analysis, bank's ROA is positively related to household loans and SME loans, but it is negatively correlated with the ratio of loans to large companies, sector bias, and loan loss provision ratio. Second, ROA volatility was negatively related to household loans and SME loans, but it was positively correlated with large corporate loans, sector bias ratio, and loan loss provision ratio. Third, as a result of the regression analysis, the variables that have a statistically significant effect on the ROA volatility of banks were household loans, SME loans, and large enterprise loans. From these empirical results, special banks with high volatility in profits need to diversify loan types and sectors in order to achieve business performance outside of policy finance. and Especially, Suhyup Bank and Nonghyup Bank, which have a large commercial role, have a large size per unit by focusing on short-term profit and Rather than focusing on large companies or large loans that are easy to obtain financial information, it is necessary to focus management capabilities on household loans and SME loans by developing capabilities such as screening techniques.

• Journal of the Korean association of regional geographers
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• v.8 no.2
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• pp.270-279
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• 2002

1997년 IMF 경제위기 이후 한국사회의 뚜렷한 변화의 하나는 빈부격차의 확대와 함께 사회계층의 양극화가 진행되고 있다는 점이다. 이 논문의 목적은 사회적 양극화의 주요 원인은 무엇이며, 사회적 양극화가 공간적으로는 어떻게 나타나는가를 서울을 사례로 하여 규명하는 데 있다. 서구 선진자본주의 국가에서 사회적 양극화에 대한 논의는 이미 1990년대 초 세계화 또는 세계도시가 주요한 연구주제로 등장하면서 시작되었다. 1980년대 이후 선진자본주의 국가를 중심으로 한계에 도달한 포드주의 축적체계가 포스트 포드주의로 급속히 전환되면서 사회적 양극화가 자본의 유연화 및 세계화 전략과 맞물리는 현상으로 인식되었기 때문이다. 이런 점에서 최근 전개되고 있는 한국의 사회적 양극화는 서구 선진국과 유사하다. 1997년 경제위기 이후 세계화가 급속히 진행되는 가운데 지식기반경계의 대두로 고소득 전문직이 등장하는 반면, 중산층의 몰락과 더불어 임시적 고용이 확대되고 실업이 만성화되는 등 자본의 세계화와 유연화 과정에서 나타나는 양극화 양상이 보이기 때문이다. 이와 같은 맥락에서 한국의 사회적 양극화는 이미 1990년대 초부터 진행되어 왔으며, IMF 경제위기는 단지 그러한 사회적 양극화를 급속히 진행시키는 방아쇠 역할을 하였다고 할 수 있다. 그러나 양국의 사회적 양극화는 직업구조와 임금소득의 격차만으로 설명하기 어려운 또 다른 특성을 갖는다. 왜곡된 시장구조에서 무엇보다도 부동산과 같은 자산소득의 격차가 큰 역할을 하기 때문이다. 서울은 이와 같은 한국의 사회적 양극화가 한 도시 내에서 전형적으로 전개되는 곳이라고 할 수 있다. 한국 내 어떤 도시보다도 세계화되어 있고 전문지식을 기반으로 하는 산업이 발달하고 있기 때문이다. 서울의 사회적 양극화는 공간적으로도 나타난다. 일반적으로 서울은 크게 주거지로서는 공동화되고 있는 중구 종로구 용산구 등 사대문안의 구도심지역, 강남구 서초구 송파구 등을 중심으로 한 1970년대 이후 계획적으로 계발된 이른바 강남의 신흥주택 및 신산업 지역, 영등포구 구로구 금천구 성동구 동대문구 등 제조업 중심의 구 산업 및 저소득층 주거지역 그리고 그 나머지 강북 강서 강동 등의 전형적인 주거지역 등 4개 유형으로 지역이 구분된다. 그러나 IMF 경제위기 이후에 강남구 서초구 송파구를 중심으로 하는 고소득증의 주거지와 그 나머지 주거지로 공간적 양극화가 이루어지고 있다. 사회적 양극화의 이와 같은 공간화 과정에는 자산소득의 격차를 확대하는 강남구 서초구 송파구의 높은 지가 및 아파트 가격이 중요한 역할을 하고 있다. 높은 부동산 가격이 이 지역에 대한 일종의 진입장벽을 참음으로써 고소득층에 의한 공간독점을 가능하게 하기 때문이다. 공간적 양극화를 촉진하는데는 지하철 및 문화복지시설의 집중 둥 불균형적인 공공투자와 강북에서 이전한 명문고등학교를 중심으로 형성된 8학군 등 양호한 교육환경 또한 중요한 역할을 하고 있다. 서울의 사례에서 확인할 수 있듯이, 한국에서의 사회적 양극화는 직업구조와 임금소득이라는 일반적인 요인 외에도 부동산 가격 및 소득 그리고 생활인프라의 격차를 통해 공간적 양극화물 야기하고 있다. 이러한 현상이 한국내 다른도시에서도 전개되고 있는지, 공간적 양극화로 인한 도시문제는 무엇이고 대처방안은 무엇인지 등에 대해서 후속연구가 요구된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.8
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• pp.3417-3426
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• 2012

This study aims to determine how ownership structure (share-holding ratio of insiders, foreigners) affects agent costs (the portion of asset efficiency or non-operating expenses) through empirical analysis. However, as existing studies on correlations between ownership structure and agent costs adopted Pooled OLS Model, this study focused on additionally formulating Fixed Effect Model and Random Effect Model aimed to reflect the time of data formation and corporate effects as study models based on verification results on the suitability of Pooled-OLS Model before comparative analysis for the purpose of improvement of credibility and statistical validity of the results of empirical analysis based on the premise that the Pooled OLS Model is not reliable enough to verify massive panel data. The data has been accumulated over 10 years from 1998 to 2007 after the IMF crisis hit the nation, from a subject 331 companies except for financial institutions. As a result of the empirical analysis, verification of the suitability of model has determined that the Random Effect Model is appropriate in terms of asset efficiency among agent costs items. On the other hand, the Fixed Effect Model is appropriate in terms of non-operating costs. As a result of the empirical analysis according to the appropriate model, no hypothesis adopted in the Pooled OLS Model has been accepted. This suggests that developing an appropriate model is more important than other factors for the purpose of generating statistically significant empirical results by showing that different empirical results are produced according to the type of empirical analysis.

• Korean small business review
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• v.42 no.2
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• pp.23-42
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• 2020

In this paper, it is analyzed that the financial factors of successful/unsuccessful companies in restructuring among Korean SMEs. For this purpose, the cases of 494 SMEs that had been subjected to workout programs due to financial distress between 2008-2014 were collected from A bank which is a SME financing bank, and had been subjected to logistic regression and t-test. And the sample cases are categorized into two groups, companies subject to external audit and the others, to provide more reliability. The result suggests; First, in all sample cases of SMEs, those are success factors for workout in connection with smaller total assets, lager sales amount, lower ratio of intangible assets, higher ratio of operating profit, lower ratio of short-term debt, higher ratio of long-term debt, and longer corporation history. Secondly, several factors have different influence on companies subject to external audit and the others. Lastly, the success factors for workout in Korean SMEs turned out to be different from those suggested in previous studies that are focused on large company. Some of the financial factors that led financially distressed firm to a successful restructuring showed the same results as large companies, but some of them were not related to them or even had the inverse influence on SMEs. This implies that SMEs have their distinctive success factors.

• Journal of Digital Convergence
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• v.15 no.11
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• pp.175-185
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• 2017

This paper aims to determine whether the changes in management performance of domestic agricultural cooperatives had an effect on the election results of Korean Agricultural Cooperatives in 2015. Financial performance data (2012-2015) prior to the Nation-wide Cooperatives elections in 2015 were reviewed to determine the impact of the election outcome on the election results. 2SLS Probit regression analysis shows that the significant parameters for incumbent president turnover in the 2015 election were the candidates' age, net profit decrease in 2014, and ROA comparison to similar asset-size group. These results support the conclusion that the union members of KAC consider whether the age of president is over 60, whether the net profits of the cooperatives are worse than the previous year, and compare the results of similar groups' managerial performance (ROA).

• Journal of the Korean Regional Science Association
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• v.31 no.1
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• pp.83-101
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• 2015

This paper examines port redevelopment and urban regeneration projects of foreign advanced countries and investigates policy implications to apply to Korean port cities. Busan and Incheon have started to redevelop old port facilities located near old city centers and they have been faced several problems. Significant findings are found from the experiences of Inner Harbor in Baltimore, Darling Harbor in Sydney, Hafencity in Hamburg, Eastern Dockland in Amsterdam and Minatomirai 21 in Yokohama etc. At first, port and city have to be integrated to an unique regeneration project in order to solve the spatially disconnected problems originated from separate development in the initial stage. Preservation of historical regional assets is highly recommended to characterize its own value which is emphasized in the age of post modernism. Accurate and consistent design guidelines of port cities are stressed to build high standard cities. In the perspective of investigating a new business model, anchor facilities and place marketing strategies are introduced to induce more people to the place specially in the beginning stage. In addition, creative financing methods and competent implementing bodies are emphasized to running the projects stably regardless of real estate market status.