• The Journal of Asian Finance, Economics and Business
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• 제8권8호
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• pp.103-115
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• 2021

This study investigates the relationship between family ownership and the stock price crash risk. It believes that this relationship would never be in direct connection. The authors design and then find that family ownership is predisposed, in the first place, to the related party transaction, then the related party transaction causes the future stock price crash. This study infers that employing the power of family ownership creates the Type I agency problem, although this is not relevant for the Type II problem. From the perspective of the hoarding theory, family ownerships produce opaque accounts by blurring financial information. The blurred information is probably hidden in the related party transactions. This study, therefore, splits these transactions into accounts receivable, other accounts receivable and other receivables. Finally, this research concludes that the family ownership affects related party transactions. These then are used as an instrument to influence the leaded related party transaction. The latest, leaded related party transactions influence the future stock price crash. This study infers that related party transactions are abusive practices, especially on the types of receivables. It implies corporate governance's revitalisation.

• 융합경영연구
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• 제9권2호
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• pp.1-10
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• 2021

Purpose: In this work, we examine several time series models to predict internet and mobile transaction amount in South Korea, whereas Jeong (2020) has obtained the optimal forecasts for online shopping transaction amount by using time series models. Additionally, optimal forecasts based on the model considered can be calculated and applied to the Corona 19 situation. Research design, data, and methodology: The data are extracted from the online shopping trend survey of the National Statistical Office, and homogeneous and comparable in size based on 46 realizations sampled from January 2007 to October 2020. To achieve the goal of this work, both multiplicative ARIMA model and Holt-Winters Multiplicative seasonality method are taken into account. In addition, goodness-of-fit measures are used as crucial tools of the appropriate construction of forecasting model. Results: All of the optimal forecasts for the next 12 months for two online shopping transactions maintain a pattern in which the slope increases linearly and steadily with a fixed seasonal change that has been subjected to seasonal fluctuations. Conclusions: It can be confirmed that the mobile shopping transactions is much larger than the internet shopping transactions for the increase in trend and seasonality in the future.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제18권2호
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• pp.129-139
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• 2011

We consider an optimal trading rule in this paper. We assume that the underlying asset follows a mean-reverting process and the transaction consists of one buying and one selling. To maximize the profit, we find price levels to buy low and to sell high. Associated HJB equations are used to formulate the value function. A verification theorem is provided for sufficient conditions. We conclude the paper with a numerical example.

• 한국중재학회지:중재연구
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• 제14권2호
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• pp.173-198
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• 2004

Recently in Korea, franchise system has been specially used in the distribution industry. However, it also brought up many problems caused by various issues between franchisor and franchisee. The purpose of this article is to review recent trend of the franchise transaction contracts and resolution of the disputes in Korea. And to expand to use of ADR(Alternative Dispute Resolution) system as a practical dispute settlement procedure including mediation and arbitration. Arbitration means a procedure to settle any dispute in private laws, not by the adjudication of a court, but by the award of an arbitrator or arbitrators, as agreed by the parties. Arbitration agreement is a prerequisite for either party to a dispute to commence arbitral proceeding and may be in the form of a separate agreement or in the form of an arbitration clause in a contract and shall be in writing.

• 통상정보연구
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• 제7권3호
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• pp.97-111
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• 2005

This paper object is application of electronic Customers Relationship Management(e-CRM) for buyer This paper focuses on the possibility of the adaption of Escrow system in Local L/C opening and payment. The purposes of this study are to obtain efficiency and stability of Local L/C and to provide opportunity to accept trust of the transaction parties. The results of the study show that Escrow system is recommended when Local L/C opened, because Escrow system has the following merits: (1) Open system of internet can be used to Local L/C process. (2) Transaction process of Escrow system is very simple. (3) One stop transaction can be applied to all the process of local L/C.

• 경영과정보연구
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• 제26권
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• pp.1-26
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• 2008

Since Capital Asset Pricing Model(CAPM) was proposed in the early 1960s by William Sharpe(1964) and John Lintner(1965) researchers have investigated the validity of the model. The results of empirical researches do not show that expected returns of stocks seem to be determined solely by systematic risk of the stocks as precicted by CAPM. In this paper the relationship between transaction volume and expected returns of stocks was investigated. Empirical cross-sectional analysis about the data collected from Stock Market of Korea Exchange shows transaction volume and variability of stock returns play an important role in pricing assets. The well-known variables which were used traditionally to explain the differences of expected returns among stocks such as the size and beta of a stock seems to be unimportant in pricing assets.

• 패션비즈니스
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• 제13권3호
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• pp.49-61
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• 2009

The purpose of this study is to analyze how the perceived benefits and obstacles of fashion companies, which utilizes the internet as a marketing or commercial transaction tool, have effect on the continuous internet adoption intention, and to analyze the differences between the companies that have introduced the internet commercial transaction and those that have not. A survey was conducted from January $15^{th}$ to February $20^{th}$ in 2009, among the employees of fashion companies carrying out internet business. A total of 314 respondents used in the data analysis, the statistical analysis methods were frequency analysis, factor analysis, reliability analysis, t-test and multiple regression analysis. The results show that the elevation of the business results, improvement in customer relationship and raise in market reactivity of the perceived benefits has effect on the continuous internet adoption intention of fashion companies. There are differences in the elevation of the business results, improvement in consumer relationship, miscellaneous expenses and the continuous internet adoption intention between companies that introduced a internet commercial transaction system and those that have not.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권4호
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• pp.1389-1408
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• 2021

Proof-of-Work (PoW) is the first and still most common consensus protocol in blockchain. But it is costly and energy intensive, aiming at addressing these problems, we propose a consensus algorithm named Proof-of-Work-and-Block-Compression (PoW-BC). PoW-BC is an improvement of PoW to compress blocks and adjust consensus parameters. The algorithm is designed to encourage the reduction of block size, which improves transmission efficiency and reduces disk space for storing blocks. The transaction optimization model and block compression model are proposed to compress block data with a smaller compression ratio and less compression/ decompression duration. Block compression ratio is used to adjust mining difficulty and transaction count of PoW-BC consensus protocol according to the consensus parameters adjustment model. Through experiment and analysis, it shows that PoW-BC improves transaction throughput, and reduces block interval and energy consumption.

• 전자통신동향분석
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• 제37권3호
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• pp.85-96
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• 2022

Recently, the blockchain technology, which can decentralize business ecosystems using secure transactions without trusted intermediaries, has been spotlighted. Full nodes play an important role in maintaining decentralization in that they independently verify transactions using their full historical transaction data. However, the storage requirement of a full node for storing historical data is continuously increasing, and thus, has become harder for users to run a full node due to the heavy price for storage costs. In this paper, we investigate research trends on reducing the costs of storing blockchain transaction data so that nodes with low storage requirements can be used in the blockchain network.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2010년도 추계학술발표대회
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• pp.996-999
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• 2010

Business transactional process is usually long running computation which requests services from multiple enterprises. Web Services Transaction specification (WS-TX) defines a protocol, WS-BusinessActivity which is specifically designed for such lengthy interaction and maintains overall consistency through compensation. However timely web services transaction is prone to compensate due to tasks' missing deadline. Therefore, this paper proposes a reservation-based protocol which is used to select providers who can provide resources promptly and deselect ones who may fail. And this selection happens during resource reservation phase and before real commitment. In this way, we achieve the goal of minimizing transactions' compensation. Finally, we design the framework architecture for the proposed protocol that is extended from WS-BusinessActivity.