• The Korean Journal of Financial Management
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• v.24 no.1
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• pp.85-107
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• 2007

In this study, I analyzed determinant factors of mutual fund return. The samples was distributed into three types according to the ratio of included stocks in funds. The proxies of mutual funds were set up three ways(returns of fund). As a result of the analysis, I found that growth positively affect to fund return, abnormal return and adjusted abnormal return in all samples. While, according to three types of sample, expected and unexpected fund cash flows had differently effect on fund return. Inferentially, it seemed that the ratio of included stocks in fund was the cause of that. But price pressure hypothesis are not supported. In conclusion, it was not found the possibility of stock market disturbance in this analysis.

• The KIPS Transactions:PartC
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• v.18C no.2
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• pp.71-78
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• 2011

Financial accidents such as password exposure of credit cards or bankbooks occur often when a password is inputted to ATM/CD(Automated Teller Machines and Cash Dispenser), so particular attention is required when inputting a password. This study suggested a method to input a password safely to prevent stealing a glance at a password in case of the use of ATM/CD. The method is that users input a password when numbers are randomly displayed and disappear not to notice the password even though someone is next to or behind the users. As methods to input a password safely, the study verified safety by dividing the methods into a test of shoulder surfing, an intuitive perspective, and a theoretical analysis. In addition, the result of implementation to apply the method to ATM/CD shows that a percentage of acquiring a password from the attack of shoulder surfing is found to be lower than an existing method, so password exposure can be prevented.

• Management & Information Systems Review
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• v.34 no.3
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• pp.61-78
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• 2015

The purpose of this study is to analyze the impact of cash holdings on internationalization of listed manufacturing firms. We explore moderating effect of managerial ownership between cash holdings and internationalization of firms. We analysed cross-sectional data of 645 listed companies from 2000 to 2013 using the fixed effects estimation. Empirical results showed that the there was a positive significant relation between cash holdings and internationalization of firms This study also found that managerial ownership have a significant negative moderating effects in the pathway between cash holdings and internationalization Cash liquidities can be rapidly induced internationalization. Managerial ownership increase agency cost, therefore, it might have a negative effects on internationalization These results suggest that agency cost with cash holdings is very important for cash management.

• The Journal of the Convergence on Culture Technology
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• v.9 no.2
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• pp.319-325
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• 2023

This study investigates the impact of over-investment on the market value of cash holdings. In addition, this paper examines whether the effect of over-investment on the value of cash holdings differs depending on firms' ownership structure. The results show that increase in over-investment reduces the market value of cash holdings. This suggests that investors perceive that over-investment deteriorates future business performance and generates excessive burdens on future cash flows. As a result, they provide negative evaluation on the market value of cash holdings. In addition, the negative impact of over-investment on the market value of cash holdings is more significant for owner manager firms where managers hold a high level of equity. Such empirical results imply that owner manager firms are more likely to use their cash holdings for private interest, therefore, over-investment reduces the cash value to a greater extent. This study provides empirical evidence that the effect of over-investment on the market value of cash holdings varies depending on the characteristics of firms' ownership structure.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.312-318
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• 2017

This study calculated the cash flow using the financial information by fiscal year for 25 general hospitals and 23 hospitals, and analyzed the relationship between cash flow and net working capital. The analysis results showed that 73.3% of general hospitals and 83.3% of hospitals did not secure funds required for operating activities by fiscal year. The cash flow types that affect net working capital were expenses not involving cash outflows and changes in borrowings in general hospitals, and expenses not involving cash outflows and income not involving cash inflows and changes in borrowings in hospitals. However, in case of shortage of funds required for operating activities, at general hospital, due to expenses not involving cash outflows being high and income not involving cash inflows being low and resulting in increased borrowing, at hospital, due to expenses not involving cash outflows being high and resulting in increased borrowing. Therefore, for the stability of cash flow in management activities, the adequacy and relevance of the expenses not involving cash outflows need to be reviewed, and it will be necessary to review the appropriate internal policy measures to systematically and rationally manage cash flow in consideration of cash flows.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.67-73
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• 2018

Financial plight condition firms difficulties accessing external funding, these firms will arrange scarce funds using tax avoidance can be a way of improvement of internal cash flow and internal funds securement. This study is empirical evidence presented the association between free cash flow can be represented for financial condition of firms and using tax avoidance for Kosdaq listed firms. Empirical analysis result, presented plus (+) results the association between free cash flow and tax avoidance. these results are in the previous year free cash flow is large firms purpose of internal cash holdings that increase of tax avoidance in order to minimize of cash outflow are based on tax burden. also interaction effect of free cash flow and debt ratio is presented influence of plus(+) on tax avoidance.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.423-426
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• 2004

Costs of public rental housing development project consist on various kinds of profits and expenses such as national housing fund, rental cost, construction cost, financing cost. Therefore, project would not be executed without minute management and precise prediction about each item. Cash (low prediction and analysis are necessary to grasp current situation of project, because construction project which is conducted for a long period has fluent risks and inflows and outflows of cash. Although cash flow analysis has been conducted, cash flow has never been expected and managed. General matters to expect cash flow can be known by actual results and literatures. Hut there is no thesis which is studied about risk to enhance precision of expectation of cash flow. As existing thesises studied the risk about whole project, we haven't known precise relations of cash flow and project. Therefore, in this study, we are supposed to analysis and distinguish risk facts which can affect each item of cash flow for precise cash flow expectation and management of public rental housing development project.

• The Korean Journal of Financial Management
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• v.21 no.1
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• pp.1-32
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• 2004

This paper investigates the stock price and the volume behavior on the ex-dividend day using the December fiscal year firms listed on the Korea Stock Exchange from 1998 to 2000. Using the samples of voluntarily preannounced dividend-raying firms prior to the end of fiscal you, this study corrects the major limitations on previous studies -Kim, S. (1997) and Kim, S. (2003)- which were based on the perfect foresight assumption for firms' upcoming dividends. Also, this paper examines the information content of dividend more properly, since the preannounced date for the upcoming dividend payment is employed for the first time as the event date. Empirical results show that the announcement effects of cash and/or stock dividend is significant around the event date. The ex-dividend day stock returns are negative as expected for the samples of voluntarily preannounced cash dividend-paying firms.

• Proceedings of the Korean Society of Computer Information Conference
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• 2009.01a
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• pp.429-432
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• 2009

최근 현금인출기의 설치가 증가하면서 그에 따른 범죄도 증가하는 추세이다. 현금인출기와 관련한 지능형 범죄가 증가하고 있지만 보안 시스템은 CCTV나 감시카메라를 이용하고 있어 취약한 면이 많다. 특히 감시 카메라는 실제 상황을 단순하게 녹화하는 가능만을 제공하기 때문에 모자나 마스크, 선글라스 등으로 안면을 가리고 현금인출기를 이용하면 범죄 사건 발생 후에 범인의 신원을 확인할 수 없는 문제점이 발생한다 따라서 본 논문에서는 효과적인 현금인출기 보안 시스템을 위한 안면 인식 알고리즘을 제안한다. 이 알고리즘은 현금인출기의 감시 카메라를 이용하여 사용자의 안면을 인식하고, 그 영상에서 장신구 착용 유무 판별함으로써 정상식인 얼굴과 비정상적인 얼굴을 구별한다. 성능평가에서는 정상적인 얼굴, 선글라스 착용 상태, 마스크 착용 상태, 선글라스와 마스크를 모두 작용한 상태에 대하여 안면 인식률을 비교 평가한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1998.05a
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• pp.276-281
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• 1998

본 논문에서는 온라인 전자현금 시스템을 설계하고 개발한다 개발된 전자현금 시스템은 공개키 알고리즘, 맹목 서명, tut-and-choose등과 같은 다양한 암호화 기법들이 사용되어 안전성을 높였으며 특히, 전자현금의 이중 사용(double spending)의 효과적인 방지를 위해 2중 은행 구조(2-level bank structure)를 취함으로써 통신망을 오가는 트래픽의 양을 많이 줄이고자 하였다. 이 구조의 가장 큰 특징을 각 은행마다 그 은행에서 발행하는 전자현금을 구분하기 위해서 전자 현금의 정보에 들어 있는 일련번호(sequence number)의 값을 은행별로 범주화한다는 점과, 이를 지원하기 위해서 각 은행마다 Cash Clearing Agent라는 모듈을 가진다는 점이다.