• 대한전기학회논문지:전력기술부문A
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• 제55권5호
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• pp.214-219
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• 2006

Oligopoly differs from perfect competition and monopoly in that a firm must consider rival firms' behavior to determine its own best policy. This interrelationship among firms is the issue examined in this paper. In the oligopoly market, the complete information market means that each producer has full information about itself, the market, and its rivals. That is, each producer knows the market demand function, its own cost function and the cost functions of rivals. On the other hand, the incomplete information market means that in general each producer lacks full information about the market or its rivals. Here, we assume that each firm doesn't know the cost functions and the strategic biddings of its rivals. The main purpose of this paper is to analyze firm' strategic behaviors and equilibrium in an electricity market with incomplete information. In the case study, the complete information market and the incomplete market are compared at the Nash Equilibrium from the viewpoints of market price, transaction quantities, consumer benefits, and Social Welfare.

• 대한가정학회지
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• 제40권12호
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• pp.199-216
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• 2002

The purpose of this research is to study the efficiency of the Internet market, not provided to consumers by the existing traditional market. This research examines whether consumers properly understand the efficiency of the Internet market. The result from consumers perception on the efficiencies in the two market are as follows. First, consumers perceived the traditional market as having more product alternatives compared to the Internet market. Second, consumers perceived that the Internet market was more efficient in price dispersion and price change Third, the Internet market was considered more efficient in searching and travel time, and in the search cost. Finally, the traditional market was considered as a better provider of the information about product function, feature, reality, usage and service compared to the Internet market. On the contrary, the Internet market turned out to be more effective in providing product information, price information and trading information compared to the traditional market. Therefore consumers perceived the traditional market of having more information.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 춘계학술대회
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• pp.790-791
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• 2015

본 연구에서는 타 기술과의 융합을 통하여 그 영역이 지속적으로 확대되고 있는 정보보호 산업의 글로벌 시장동향을 분석하였다. 국내 정보보호 산업 시장은 2013년 현재 국내시장이 세계시장에서 차지하는 점유율이 매우 낮다는 점과 수차례의 보안사고로 인한 경각심 고조, 물리보안 수출의 확대 등의 요인을 고려하면 세계 정보보호 산업에 비해 높은 성장률을 보일 것으로 전망된다. 주목해야 할 점은 국내 시장은 제품시장이 주도하지만, 세계시장은 서비스 시장이 주도할 것이라는 전망이다. 따라서 국내 정보보호 산업의 현재의 부진을 극복하기 위해서는 상대적으로 부가가치가 높은 서비스 시장에 보다 중점을 둔 시장육성 전략이 요구된다.

• Journal of Information Technology Applications and Management
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• 제17권3호
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• pp.151-162
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• 2010

Recent developments in financial market liberalization and information technology are accelerating the interdependence of national stock markets. This study explores the information spillover effect of the US stock market on the overnight and daytime returns of the Korean stock market. We develop a profitable intra-day trading strategy based on the information spillover effect. Our study provides several important conclusions. First, an information spillover effect still exists from the overnight US stock market to the current Korean stock market. Second, Korean investors overreact to both good and bad news overnight from the US. Therefore, there are significant price reversals in the KOSPI 200 index futures prices from market open to market close. Third, the overreaction effect is different between weekdays and weekends. Finally, the suggested intra-day trading system based on the documented overreaction hypothesis is profitable.

• STI Policy Review
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• 제2권1호
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• pp.55-73
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• 2011

Intermediaries are presenting not only transactional information that orchestrates electronic transaction, but also market related information and knowledge useful for sellers' understanding of the market status. However, we do not have strong evidence that the market related information and knowledge is properly utilized by sellers and that it has an actual influence on sellers' performance. According to the research result, absorptive capacity and the pattern of information system utilization is statistically significant to sellers' performance mediated by operational efficiency and market knowledge creation. Especially, explorative utilization of information system and realized absorptive capacity has a stronger influence on sellers' performance mediated by market knowledge creation. With this research result, this study maintains that sellers are required to absorb and utilize market related information and knowledge more actively through explorative utilization of information system to achieve better performance in the e-marketplace. On the other hand, intermediaries are recommended to provide abundant and valuable market related information and knowledge for the sellers to build up better e-marketplaces.

• 지식경영연구
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• 제20권4호
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• pp.39-55
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• 2019

Although Firms have been increasing their information security significantly to handle increased security risks, the effects of information security were not well understood. This study aims to investigate the market value of information security by employing the event study methodology. Our research also explores how market responses vary depending on the type of information security announcements. We collected 177 firm-level information security announcements between 2001 and 2017 in South Korea. For all samples, our results indicate that the stock market positively reacts to information security announcements. We also conducted subsample analysis and found that while information security certification announcement has a positive impact on the stock market, information security activities (e.g. award, information security system) announcement had no impact on the stock market. Our study adopted a novel approach (i.e. event study) for investigating the effects of information security and found that information security investment positively affects firm value. Our results allow managers to measure the effects of information security investment and help them make right decisions on information security investment.

• Journal of Electrical Engineering and Technology
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• 제5권1호
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• pp.1-7
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• 2010

Recently, smart grid has been considered a very important new energy delivery technology, and one that can help ensure a cleaner environment by making use of information and communication technology (ICT) in countries around the world. The many technological benefits smart grid offers is expected to bring about a huge change in the electric energy supply chain. In particular, smart grid with advanced ICT is likely to allow market agents to participate in the decision-making process in the restructured electricity industry, easily facilitating Homeostatic Utility Control. In this paper, we examine smart grid as a market externality, and then illustrate issues from the commercial market perspective as it relates to electricity market design. Finally, our paper identifies some of the impacts of smart grid on electricity market design, which may possibly be incorporated into the evolution of the electricity market, thus ensuring market efficiency.

• 수산경영론집
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• 제36권2호
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• pp.1-24
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• 2005

The purpose of the study are summarized as follows : First, it has researched the possibility of the Distribution Information application in Sea Food Wholesale Market. Second, the effects which the Wholesale Market Company and the Intermediary Wholesaler Corporations can obtain in Sea Food Wholesale Market by building up a Distribution Information are classified into the effects of task, cost, and competition. It has analyzed the influence of these effects in direct and indirect Trust between the Wholesale Market Company and the Intermediary Wholesaler. Third, it has recognized the upcoming problems in Sea Food Wholesale Market by building up a Distribution Information, and it has suggested a plan to make the Distribution Information application successful in Sea Food Wholesale Market. This study has used a questionnaire to verify 5 hypotheses. Research model, factor analysis, correlation relationship analysis. The result of this study are summarized as follows : Building up the Distribution Information influences positively on the effectiveness of task, cost and competitiveness regardless of it being the Wholesale Market Company or the Intermediary Wholesaler corporation. However, the results of this analysis are to verify differences according to the degree of construction of the Distribution Information and the degree of the perception of the problems between the Wholesale Market Company and the Intermediary Wholesaler corporations have shown that there were distinct differences in the degree of computerization and of efforts to build a Distribution Information. Also there were distinct differences according to the degree of perceiving problems relating to building up the Distribution Information and the stages of the Distribution Information between the Wholesale Market Company and the Intermediary Wholesaler corporations. This study suggest three important steps that will help to establish a successful Distribution Information. First, the Wholesale Market Company and the Intermediary Wholesaler corporations should make efforts to increase mutual profits in partnership, and make direct Trust by sharing mutual information. Second, the lack of understanding of the Distribution Information between departments within the company requires educating employees about the Distribution Information. It is necessary to expand the communication networks of the Distribution Information between the Wholesale Market Company and the Intermediary Wholesaler. Third, mutual exchange of Information should be possible to offer systematic exchange of Information between the Wholesale Market Company and the Intermediary Wholesaler corporations.

• Agribusiness and Information Management
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• 제4권1호
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• pp.41-47
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• 2012

The Asian food market has been growing recently, due to the role played by major Asian countries, which include Korea, China, and Japan. This study is purposed to investigate the potential of the food market in these Northeast Asian countries and to suggest future direction for global food companies. For in-depth analysis, this study is limited in scope to the confectionery market and analyzes that market within two frameworks: first, the 'Market Attractiveness Matrix' which transforms the 'BCG Matrix' to fit into the food market in order to analyze the flow in the Asian confectionery market; and second, analysis of the potential growth of the market using a Category Development Index (CDI), which aids in understanding the growth potential of a market. The European food market has recently reached its capacity and is now experiencing a low growth rate (Data Monitor, 2011). It is time for food companies to find a new 'blue ocean' to avoid fierce competition in the mature markets of Europe. Therefore, this analysis of the confectionery market, using the Market Attractiveness Matrix and CDI will suggest opportune directions for global food companies.

• 한국컴퓨터정보학회논문지
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• 제24권11호
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• pp.143-152
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• 2019

본 연구에서는 온라인 취업정보 서비스 시장의 현황을 파악하고, 이를 토대로 시장 생태계를 유지하기 위한 전략적 가이드라인을 제시하고자 한다. 연구 방법은 다양한 2차 자료를 활용하여 온라인 취업정보 서비스 시장을 파악하는 기술적 연구로 수행되었다. 구체적으로 시장 분석에서는 취업정보 서비스 시장의 높은 잠재적 성장성과 주요 이슈들을 파악하였다. 산업 트렌드 분석에서는 주요 서비스 형태, 구직자들의 유형 및 특징, 서비스 사용 트렌드, 판촉 및 마케팅 방법을 분석하였다. 마지막으로 이 시장의 SWOT 분석을 통해 시장 생태계를 선순환 구조로 이끌 수 있는 전략적 가이드라인을 제안하였다. 이러한 연구 결과는 일차적으로 취업정보 서비스 시장을 주요 이슈 중심으로 현황을 파악함으로써 시장에 대한 폭넓은 이해를 하는 데 유용할 것이다. 또한 산업에 속한 기업들에게는 산업 내에서 지속적으로 생존하기 위한 단서를 제공할 수도 있다. 나아가 정보 및 공공기관에서는 취업정보 서비스 시장을 활성화 함으로써 일자리 창출 및 개선에 기여할 수 있을 것으로 평가된다.