• 한국정보시스템학회지:정보시스템연구
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• 제27권3호
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• pp.43-62
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• 2018

Purpose Since the Bitcoin, which was the first virtual currency, was made at 2009, almost 1,000 virtual currencies appeared onstage in the world. Even though virtual currencies have the function of money as a medium of exchange or contract, any of those has not yet entered the commercialization stage. Instead, some of the virtual currencies show the nature of investment assets. In the case of virtual money investment, users tend to use all the information of the world because information transfer is very easy and capital movement is almost free between different countries. In addition, as the transaction sizes of virtual currencies increase, a virtual currency price is no longer independent and is likely to be affected by the prices of other virtual currencies. Therefore, it is necessary to understand the influence among virtual currency markets, which helps successful implementation of investment strategies. Design/methodology/approach This study focuses on the investment product function of virtual money and conducts the analysis using the time series model used in the financial and economic areas. In this paper, we try to analyze the return and volatility transfer effect of virtual money markets through GJR-GARCH model. Findings This study is expected to find out whether we can make market forecasts through reflecting changes in other markets. In addition, we can reduce the trial and error of user decision making by using the information on the yield and volatility transition effect derived from the research results, and it is expected to reduce the opportunity cost of users.

• Journal of Information Technology Applications and Management
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• 제29권2호
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• pp.17-25
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• 2022

Although the two types of currencies compete, the possibility of a virtual currency price bubble is diagnosed by assuming an economic model with currencies (won, virtual currency) that are intrinsically worthless. The won is supplied by the central bank to achieve the price stability target, while the supply of virtual currency increases by a fixed number. According to the basic price theory equation, as a simple proposition, cryptocurrency prices form a Martin Gale process [Schilling and Uhlig, 2019, p.20]. Based on the existing theoretical proposition, we applied the variance ratio verification method [Linton and Smetanina, 2016] and a simple technical chart method for empirical analysis. For the purpose of this study, the possibility of a bubble was empirically analyzed by analyzing the price volatility formed in the Korean virtual currency market over the past year, and brief policy implications for this were presented.

• 한국콘텐츠학회논문지
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• 제18권7호
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• pp.519-526
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• 2018

최근 가상화폐에 대한 관심이 증대되고 있는 실정이다. 전통적인 자산을 추구하는 것이 안전하다는 견해도 있으며 가상화폐로 인해 다각화될 수 있는 금융사회에 긍정적인 변화를 기대하기도 하는 입장의 자산전문가들도 있다. 현재 가상화폐 시장은 미성숙한 상황이라 볼 수 있으며, 아직 가상화폐에 대한 안정성이 확보 되지 않은 상태이기에 가상화폐의 거래에 대한 잠재적인 위험이 발생할 가능성이 높다. 본 연구에서는 가상화폐가 시장거래에 있어서 안정화에 기여할 수 있는 평가요인들을 도출하여 중요우선순위를 도출하고자 한다. 주요 평가요인으로는 거래환경의 관점, 기술적 관점, 이익적 관점으로 선정하였으며 이에 따른 하부요인들의 중요도는 AHP를 적용하여 분석하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 춘계학술대회
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• pp.203-204
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• 2018

최근 전 세계적으로 비트코인을 필두로 다양한 가상화폐의 관심도가 증가함에 따라 가상화폐에 대한 투자 및 거래가 활성화되고 있다. 그러나 가상화폐는 가격이 불안정하여 금액 변동률 폭이 매우 크기 때문에 잦은 금액 확인이 요구되어 가상화폐 투자자들은 자주 가상화폐 거래소를 확인을 해야 하는 문제점이 발생한다. 따라서 본 논문에서는 가상화폐 가격 정보 데이터를 수집하여 RGB로 표현하는 가격정보 안내 시스템을 사용함으로서 거래소에서 낭비되는 시간을 크게 줄이고 사용자만이 데이터 표현을 이해할 수 있어 기밀성을 지원할 것으로 기대한다.

• 인터넷정보학회논문지
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• 제22권4호
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• pp.111-121
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• 2021

본 연구는 가상화폐의 국내 연구동향 고찰을 통하여 향후 가상화폐관련 연구에 시사점을 제공하고자 하였다. 연구결과 가상화폐 국내 연구는 고찰 한바와 같이 2018년도부터 본격화 하고 있으나 학술지논문은 14개, 학위논문 14개 총 30여개 정도로 아직 연구가 미진한 편이다. 세부 주제별로 보면 상대적으로 법적, 과세, 시장 측면은 연구는 수용의도 측면의 연구보다는 많은 편이다. 본 연구에서 연구주제로 구분한 법적, 과세, 범죄, 시장, 수용의도 측면 연구 중 상대적으로 수용의도 측면의 연구가 학술적 가치를 지니고 있을 것이라고 보면 향후 가상화폐 관련 연구는 수용의도 등 좀 더 학술적인 주제가 활발히 진행 될 필요가 있다고 사료된다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 춘계학술대회
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• pp.114-115
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• 2018

최근 사회적 화두가 된 비트코인은 블록체인 기술을 활용한 수평적 및 분권적 디지털 가상화폐라 불리기도 하며 암호화폐의 일종이다. 블록체인은 피어-투-피어(P2P) 네트워크상에서 공유되는 분산원장이라고 할 수 있는 블록체인은 비트코인에서 먼저 사용되었다. 이러한 기술은 다른 분야에서도 다양하게 응용 가능한 기술이라고 하여 높은 사회적 관심을 받고 있다. 최근 비트코인 등 가상화폐 시장 동향을 살펴보면 작년 일본정부가 가상화폐를 결제의 수단으로 인정한 이후 가격 변동성 높아졌다. 따라서 혁신적 기술을 바탕으로 한 비트코인의 핵심기술인 블록체인 기술을 조망을 통해 이론적 실무적 함의를 제시하고자 한다.

• 문화기술의 융합
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• 제8권1호
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• pp.583-590
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• 2022

암호화폐는 2009년 비트코인 소스 공개와 더불어 지속적으로 기술적 발전과 시장확대가 진행되고 있다. 최근에는 NFT 코인을 비롯해 메타버스 결제 서비스를 중심으로 새로운 응용성이 확장되고 있다. 특히, 중앙암호화폐거래소는 암호화폐 간 또는 기존 법정화폐와 암호화폐 간 중계 거래를 활발히 지원하고 있다. 이러한 중앙거래소에 기초한 암호화폐 거래 시장은 암호화폐의 투기 요인을 부추겨서, 암호화폐의 투기성과 무용론을 강하게 불러 일으켰다. 또한, 중앙암호화폐거래소는 사용자 및 가상자산의 집중화를 유도해서, 블록체인의 탈중화 및 보안성 강화 전략을 저해하고 있다. 따라서 본 연구는 현재 서비스 중인 중앙통제 기반의 중앙암호화폐거래소 현황 및 문제점을 기술하고, 거래소의 분산화 모델로서 분산암호화폐거래소 모델링 전략 및 주요 이슈를 제시한다. 본 연구는 블록체인의 기초한 암호화폐의 익명성, 분산화, 자치성 등을 강화할 수 있다.

• 산업경영시스템학회지
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• 제46권1호
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• pp.105-111
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• 2023

Recently, research on prediction algorithms using deep learning has been actively conducted. In addition, algorithmic trading (auto-trading) based on predictive power of artificial intelligence is also becoming one of the main investment methods in stock trading field, building its own history. Since the possibility of human error is blocked at source and traded mechanically according to the conditions, it is likely to be more profitable than humans in the long run. In particular, for the virtual currency market at least for now, unlike stocks, it is not possible to evaluate the intrinsic value of each cryptocurrencies. So it is far effective to approach them with technical analysis and cryptocurrency market might be the field that the performance of algorithmic trading can be maximized. Currently, the most commonly used artificial intelligence method for financial time series data analysis and forecasting is Long short-term memory(LSTM). However, even t4he LSTM also has deficiencies which constrain its widespread use. Therefore, many improvements are needed in the design of forecasting and investment algorithms in order to increase its utilization in actual investment situations. Meanwhile, Prophet, an artificial intelligence algorithm developed by Facebook (META) in 2017, is used to predict stock and cryptocurrency prices with high prediction accuracy. In particular, it is evaluated that Prophet predicts the price of virtual currencies better than that of stocks. In this study, we aim to show Prophet's virtual currency price prediction accuracy is higher than existing deep learning-based time series prediction method. In addition, we execute mock investment with Prophet predicted value. Evaluating the final value at the end of the investment, most of tested coins exceeded the initial investment recording a positive profit. In future research, we continue to test other coins to determine whether there is a significant difference in the predictive power by coin and therefore can establish investment strategies.

• The Journal of Asian Finance, Economics and Business
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• 제7권8호
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• pp.695-704
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• 2020

Bitcoin and other prominent cryptocurrencies have gained much attention since the last several years. Globally known as digital coin and virtual currency, this cryptocurrency is gained and traded within the blockchain system. The blockchain technology adopted in using the cryptocurrency has raised the eyebrows within the banking sector, government, stakeholders and individual investors. The rise of the cryptocurrency within this decade since the inception of Bitcoin in 2009 has taken the market by storm. Cryptocurrency is anticipated as the future currency that might replace the current paper currency worldwide. Even though the interest has caught the attention of users, many are not aware of its opportunities, drawbacks and challenges for the future. Researches on cryptocurrencies are still lacking and still at its infancy stage. In providing substantial guide and view to the academic field and users, this paper will discuss the opportunities in the cryptocurrency such as the security of its technology, low transaction cost and high investment return. The originality of this paper is on the discussion within law and regulation, high energy consumption, possibility of crash and bubble, and attacks on network. The future undertakings of cryptocurrency and its application will be systematically reviewed in this paper.

• Journal of Multimedia Information System
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• 제8권3호
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• pp.197-202
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• 2021

Bitcoin and blockchain are often making headlines not only on TV or media but also among the public in today's society. These technologies have been developed after the risk of the centralized financial system came to the fore during the 2007 global financial crisis. Since then, an anonymous inventor called Satoshi Nakamoto penned the bitcoin white paper where a blockchain-based reference implementation was introduced. Bitcoin was able to achieve unprecedented growth by positioning itself as one of the top global currencies in terms of market capitalization after five years since its development. The pace of Vietnam's economic development is notably fast among Asian nations, while the nation was expected to be a Southeast Asian blockchain hub but they have banned virtual currency trading recently. However, they've also designated the State Bank of Vietnam (SBV) as a responsible agency for the research of blockchain-based cryptocurrencies, the construction of a service ecosystem, and their test operations. The fast-growing economy, increasing number of smartphone users, and the Vietnam government's support policies for startups substantiate these efforts. Therefore, this paper attempts to study the current status of Vietnam's blockchain technology that has been considered to be the center of blockchain systems right behind Singapore, and its implications for Korean companies.