• Journal of the Korean Data and Information Science Society
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• 제28권4호
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• pp.819-829
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• 2017

가격의 추세가 형성되면 그 방향으로 진행하려는 price momentum 현상은 여러 국가의 거의 모든 주식, 채권 및 통화 시장에서 관찰되고 있다. KOSPI200선물을 대상으로 거래량 패턴과 일중 price momentum을 분석하였다. KOSPI200선물에서 장이 열릴 때와 닫힐 때 거래량이 집중되는 U자형 거래량 패턴이 관찰되었다. 9시 10분의 가격 수익률이 9시 시초가 대비 양 (+)이면 매수, 음 (-)이면 매도 진입하여 종가에 청산하는 전략의 유효성을 확인함으로써 일중 price momentum 현상이 존재함을 확인하였다. 또한, 9시부터 9시 10분까지 수익률이 점점 증가되는 J자형 가격 패턴 경우는 그렇지 않은 패턴 경우보다 price momentum 현상이 더 강함을 분석하였다. J자형 가격 패턴 여부를 판단하는 방법으로 DTW 분석 방식을 사용하였다. DTW 분석은 일중 가격 움직임을 예측하는데 유용함을 확인할 수 있었다.

• 한국의류학회지
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• 제33권10호
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• pp.1519-1529
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• 2009

This study investigates the influences of the impulse buying tendency of consumers, apparel price and scarcity messages on purchasing behavior at the time of purchase on the internet. This study was comprised of 2 (impulse buying: high versus low) $\times$ 2 (price of Internet purchase products: high apparel price versus low apparel price) $\times$ 2 (scarcity message: quantity scarcity message versus time scarcity message) with three mixed elements. The subjects of this study were 400 college students in the Seoul and Gyeonggi area. A total of 95 students who had a high tendency for impulsive purchase and 104 who had a low tendency participated in the survey. Data are analyzed by factor analysis, T-test, and ANOVA. The results of this study are as follows. 1. At the time of group buying on the Internet, impulse buying tendency, apparel price, and scarcity message had a statistically significant interaction effect on consumer preferences. 2. At the time of purchase on the Internet, impulse buying tendency, apparel price, and scarcity message did not have a statistically significant interaction effect on the intention of consumers to make a purchase. However, there was a significant difference in the intention to make a purchase based on impulse buying tendency and apparel price.

• 자원ㆍ환경경제연구
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• 제13권3호
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• pp.417-440
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• 2004

미국의 PJM(Pennsylvania-New Jersey-Maryland) 전기도매시장의 전기 가격을 가변 전환확률 국면전환모형(regime switching model with time-varying transition probability model)을 이용해서 추정해보았다. 전기수요뿐만 아니라 기온을 전환확률 방정식의 설명변수로 포함시킴으로써 전기가격이 낮은 국면에서 높은 국면으로 전환할 확률의 문턱점(threshold) 효과가 뚜렷이 향상되었다. 따라서 도매전기가격의 스파이크(spike) 발생을 예측할 수 있게 되는 것이다. 이는 또한 미국의 도매시장 전기가격의 스파이크는 기온에 의해서도 잘 설명되며, 이를 이용하여 날씨관련 파생상품이나 계약을 통해서 도매전기 구입비용의 위험을 해지할 수 있다는 것을 의미한다.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.45-53
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• 2020

Past literatures have not studied the impact of real-world events or information on the return and volatility of virtual currencies, particularly on the COVID-19 event, day-of-the-week effect, daily high-low price spreads and information flow rate. The study uses the ARMA-GARCH model to capture Bitcoin's return and conditional volatility, and explores the impact of information flow rate on conditional volatility in the Bitcoin market based on the Mixture Distribution Hypothesis (Clark, 1973). There were 3,064 samples collected during the period from 1^st of January 2012 to 20^th April, 2020. Empirical results show that in the Bitcoin market, a daily high-low price spread has a significant inverse relationship for daily return, and information flow rate has a significant positive relationship for condition volatility. The study supports a significant negative relationship between information asymmetry and daily return, and there is a significant positive relationship between daily trading volume and condition volatility. When Bitcoin trades on Saturday & Sunday, there is a significant reverse relationship for conditional volatility and there exists a day-of-the-week volatility effect. Under the impact of COVID-19 event, Bitcoin's condition volatility has increased significantly, indicating the risk of price changes. Finally, the Bitcoin's return has no impact on COVID-19 events and holidays (Saturday & Sunday).

• 한국산학기술학회논문지
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• 제16권11호
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• pp.7672-7676
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• 2015

본 연구는 금융투자시장에서 적극적으로 연구되는 정보효과에 대한 동태적 분석을 시도하였다. 기존문헌(들)을 통해 정보거래가 갖는 효과에 대해 고찰하였으며, 국내 아파트시장을 대상으로 실증분석하였다. 자료는 국토해양부에서 공개하는 실거래 자료가 사용되었으며, 2006년부터 2015년까지의 월별 아파트 Data를 EGARCH 분석모형에 적용하였다. 추정한 결과, 전기 거래량이 주택가격의 변동성에 영향을 미치고 있는 것으로 확인한 바, 주택거래량이 전달하는 정보효과(information role)가 금융투자시장과 유사하게 나타날 수 있음을 확인하였다.

• 한국프랜차이즈경영연구
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• 제8권1호
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• pp.43-53
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• 2017

Purpose - The coffee market in Korea has been dramatically developed and coffee chains dominate the Korean coffee market recently. Customer's perceived value is one of the marketing tools to get competitive advantages of coffee chains, and plays a critical role to study on coffee franchise industry. Thus, this study is to identify the effect of customer's perceived value (price, brand, service, and quality) on revisit intentions and word-of-mouth(WOM). Research design, data. and methodology - Customer's perceived values consists of four dimensions. 253 samples of 320 were used for data analyses excluding unusable responses. The data were analyzed with SPSS 21.0 and SmartPLS 3.0. Result - First, customer's perceived brand value and service value have a significant, positive effect on revisit intentions. Second, Price value and brand value have a positive influence on WOM. Third, gender difference plays a moderating role in the relationship between brand value and price value and WOM, and between brand value and revisit intentions. Conclusions - Males tend to focus more on their perceived brand value of coffee shops for revisit and recommendation, otherwise females consider price value to give an advice to others. Based on the results of this study, the marketers of coffee chains can develop effective strategies regarding gender difference as well.

• 통상정보연구
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• 제10권3호
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• pp.355-367
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• 2008

The purpose of this study is to estimate and analyse the relationship between Chinese price and the price of Korea, United States, and Japan. First of all, We test for a unit-root for stability of variable. This paper employs GPH cointegration test since the model must be stationary to get the accurate predicted values. The empirical results show that the model is mean-reverting. This paper also applies impulse-response functions to the model. The empirical results show that the price of Korea, United States, and Japan respond positively to the shocks in Chinese price and then decay slowly.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2004년도 추계학술대회 및 정기총회
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• pp.289-303
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• 2004

As needs for telecommunications services diversify, an increasingly wide range of telecommunications services is becoming available in the market. Any subscriber can find a service to satisfy his/her telecommunication requirements and competition between providers to retain heavy users is increasing. Service price reductions are one retention strategy, although price reductions for one service can affect the individual-level usage for other services. Price reductions can also be imposed on a service provider by regulation. For these reasons, understanding how price reductions affect service usage is of growing importance to the telecommunications industry for purposes of pricing and tariff development. In this paper, we develop an individual-level usage model for telecommunications services and analyze the effects on usage of a price reduction. We apply the model to age-stratified aggregate traffic data for a Korean mobile telecommunication service provider. Finally, we develop a model to support a market segmentation and price reduction strategy.

• 수산경영론집
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• 제49권2호
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• pp.37-48
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• 2018

This study analyzed the impact of FTA tariff elimination on the export prices for Norwegian fresh and chilled salmon, of which Korean import has significantly increased since the Korea-EFTA FTA implementation. Korea's fresh and chilled salmon market is almost monopolized by Norway, and Korea's price level is higher than other countries, so it is highly likely that price discrimination occurs. This study theoretically explained that exporters could adjust their prices by market power when tariffs are eliminated in imperfectly competitive markets. And the empirical analysis provided evidence that the exporters have made price adjustments since the FTA took effect, and similar results were found in the relative price comparison with trade statistics and Nasdaq Salmon Index. Therefore, in order to increase consumer welfare in Korean salmon market, it is required to transform the monopolistic market structure into a competitive one.

• 한국경영과학회지
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• 제31권4호
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• pp.105-123
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• 2006

Previous research on two-sided markets has, for the most part, concentrated on indirect network externalities between buyers alto sellers. This paper considers direct competition effect among sellers and among buyers as well as indirect network externalities. We develop an analytic model of C2C e-marketplaces and examine whether a monopolistic incumbent could successfully deter new entry into its market. We find that the effect of the number of sellers or buyers on the price of goods depends on whether sellers have decided to sell the goods using an auction or fixed pricing rule and on the characteristics of the goods. We argue that when the effect of the number of sellers on the price of goods is significantly larger than that of buyers, there is a high possibility of entry. In particular, we show that entry becomes more difficult to deter as fixed-price format is adopted more frequently or the proportion of collectables is relatively low.