• Journal of the Korea Convergence Society
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• 제10권5호
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• pp.213-219
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• 2019

This study is designed to analyze the effect of entrepreneurship orientation of owner managers on product innovation performance through user innovation participation by using Korea Innovation Survey 2014 (KIS 2014) conducted by STEPI (Science and Technology Policy Institute). The findings show that entrepreneurial orientation of owner managers measured by a proxy variable of ownership ratio has positive relationship with innovation performance of firms. They also present that user innovation activity has a partial mediating effect on the relationship between the entrepreneurial orientation of owner managers and innovation performance of firms. This study suggests that the higher the entrepreneurial orientation of the owner manager, the higher the innovation performance. The innovation performance can be intensified when the open innovation strategy is implemented through the user participation.

• The Journal of the Convergence on Culture Technology
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• 제5권2호
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• pp.77-82
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• 2019

The purpose of this study is to analyze the relationship between the controlling shareholding ratio and the business diversification of savings banks The difference in this study is the analysis of the relationship between the controlling shareholding ratio of the savings bank and the business diversification using panel data. In this study, the semi-annual financial statements for the period 2014-2018 were used on the basis of a sample of 79 saving banks. The research model is analyzed using random effects generalized linear square (GLS) model considering the autocorrelation problem. As a result of the empirical analysis, it is estimated that the relationship between the controlling shareholding ratio of the savings bank and the business diversification is significant (+). This is the result of supporting the hedging hypothesis.

• Journal of Industrial Convergence
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• 제19권5호
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• pp.13-19
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• 2021

In this study, the relationship between R&D investment and firm value was approached from ESG's G(governance) perspective to verify the moderating effect of the corporate governance and ownership structure. To this end, a panel analysis was conducted on a total of 2,825 samples of 405 manufacturing companies listed on the KOSPI market during 2013~2020. The main analysis results are as follows. First of all, we found that R&D investment has a negative impact on firm value, at least in the short term, and that these relationships are moderated by corporate governance and ownership structure. When professional CEO with high level of expertise in business and management does lead R&D investment, the negative impact of R&D investment on firm value is mitigated compared to owner-manager. Also, the stronger the power of outside blockholders, the more transparent the management and disclosure of information, alleviating the information asymmetry between internal and external shareholders, which mitigates the negative impact of R&D investment on firm value. The findings suggest that the factors of ESG may not only have a direct impact on firm value, but also have a moderating effect on firm value.

• Journal of Digital Convergence
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• 제19권1호
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• pp.177-186
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• 2021

This study examined the effects of the firm characteristics of the manufacturing industry on the female employment ratio. Three hypotheses regarding female employment ratio, were tested for 5,729 firms that could use financial data among the firms listed on the KOSPI from 2011 to 2019, in terms firm size, listing period, and foreign ownership. Follwing the analyses, three hypotheses were mostly adopted. It was found that as the size firm and foreign ownership ratio increased, the female employment ratio increased in the number of regular and permanent contract employees, fixed-term employees, and total employees. As for the listing period, the higher the value, the lower the female employment ratio in the number of regular and permanent contract employees, fixed-term employees, and total employees. These research results may be used as basic data for gender equal employment policies such as Affirmative Atcion for Gender Equal Employment.

• Journal of the Korea Convergence Society
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• 제12권8호
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• pp.207-214
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• 2021

Existing studies have shown consistent results that a diversification discount phenomenon occurs, which means that the value of the company decreases as the degree of diversification of a company increases. Nevertheless, it is explained by the agency theory as a factor that continues to promote diversification by companies. And in order to solve the agency problem, it is important to form an effective governance structure. In order to solve these problems, this study aims to study how the directors' concurrent information affects the monitoring effect of the board of directors through this affects diversification.To this end, research was conducted on KOSPI companies for 6 years from 2011 to 2016.As a result of the analysis, in the case of the concurrent appointment of the CEO and the inside director, there was a positive (+) effect, but the significance could not be confirmed. In the case of adjunct appointments as outside directors, positive results were confirmed that were significant for diversification.

• Journal of the Korean Society for information Management
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• 제38권2호
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• pp.227-250
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• 2021

This study analyzed humanities and social science (HSS) journals of KCI to examine the multidisciplinarity and interdisciplinarity in the general and miscellaneous fields (hereinafter referred to as 'GM fields'), The multidisciplinarity and interdisciplinarity identified in this study will be a foundation to improve classification of KCI journals in GM fields. Each journal's multidisciplinarity and interdisciplinarity were measured by journal-level entropy and document-level entropy, respectively, in the citation relationships. According to the analysis, GM field journals have wide ranges of multidisciplinarity and interdisciplinarity. To improve classification quality of journals in GM fields, the general humanities should be considered as a new classification class for the multidisciplinary and interdisciplinary journals in the humanities. Furthermore, this study proposes a strategy to reclassify GM field journals of HSS according to their multidisciplinarity and interdisciplinarity.

• Journal of Internet of Things and Convergence
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• 제8권5호
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• pp.55-61
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• 2022

Today's payment systems are becoming unmanned and changing to a way of paying with kiosks. This has the advantage of convenient payment because consumers can select a menu and specify the number of products to be purchased with just a touch of the screen. However, from the point of view of system security, the actual kiosk system has various vulnerabilities. This can hijack the administrator account, gain system privileges, and perform malicious actions. In addition, it is exposed to a number of security threats, such as the possibility of wasting unnecessary resources by abnormally increasing the number of payments, and causing the device to fail to operate normally. Therefore, in this paper, if any node of a participant in the solana blockchain approves an incorrect fork, the stake of the voting nodes is deleted. Also, since all participants can see the transaction history due to the nature of the block chain, I intend to write a thesis on a system that improves the vulnerability of kiosk payments by separating the access rights through the private blockchain.

• Asia-Pacific Journal of Business
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• 제12권3호
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• pp.329-342
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• 2021

Purpose - The purpose of this study is to analyze the effect of investment by the National Pension Service, which has a high share as a single fund, on the dividend payout ratio. Design/methodology/approach - This study secured a share through DART of the Financial Supervisory Service and disclosure of the National Pension Service. We also used a fixed-effects model and 2SLS to analyze the data. Findings - First, it was found that there was a possibility of conflicting interests among shareholders concerning the company's dividend payment policy. Second, in the range of 3% to 4.9% of the National Pension Service shareholding, an additional increase in the holding ratio was found to have a positive (+) effect on the dividend rate. Third, after the introduction of the Stewardship Code, it was found that the increase in ownership of the fund had a positive (+) effect on the company's dividend payout ratio, regardless of the share ratio range. Moreover, the relationship between the fund ownership and the dividend payout ratio showed a clear positive relationship when free cash flow was high along investment opportunities were low. Research implications or Originality - First, This study included less than 5% of the share in the analysis. Second, We used the recent changes in fund shareholder activities. Third, We tested an instrumental variable to confirm the relationship between the National Pension Service share and the dividend ratio.

• The Journal of Bigdata
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• 제6권2호
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• pp.51-60
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• 2021

The market size of wearable devices is growing rapidly every year, and manufacturers around the world are introducing products that utilize their unique characteristics to keep up with the demand. Among them, smart watches are wearable devices with a very high share in sales, and they provide a variety of services to users by using information collected in real-time. The quality of service depends on the accuracy of the data collected by the smart watch, but data measurement may not be possible depending on the situation. This paper introduces a method to restore data that a smart watch could not collect. It deals with the similarity calculation method of trajectory information measured over time for data restoration and introduces a procedure for restoring missing sections according to the similarity. To prove the performance of the proposed methodology, a comparative experiment with a machine learning algorithm was conducted. Finally, the expected effects of this study and future research directions are discussed.

• The Journal of the Convergence on Culture Technology
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• 제9권2호
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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.