• 대한산업공학회지
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• 제31권4호
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• pp.277-288
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• 2005

The proliferation of the internet technologies and applications has intensified business activities on the Internet. This study considered the price competition between two shopping channels, one on-line seller and the other traditional off-line retailer. Based on the Hotelling's linear market model, we derive the Nash and Stackelberg equilibria as a function of the cost parameters which represent the characteristics of the online and off-line channels. By analyzing the equilibrium solutions, the following significant findings were obtained. First, pricing by Stackelberg equilibrium always outperformed that of Nash equilibrium. However the value of the cost parameters played a crucial role in determining both channels' preferred position (price leader or follower). Second, the online seller could benefit more in terms of profit by lowering its efficiency when its efficiency belongs to a certain interval. Third, when the online seller's efficiency is low, lowering its delivery cost has no contribution to its profit. To benefit more from lowering its delivery cost, increasing its channel efficiency to a certain level should be preceded.

• 한국의상디자인학회지
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• 제8권2호
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• pp.171-182
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• 2006

The purpose of this study was to business cases of setting up a shopping mall for Hanbok and other successful marketing cases were investigated to seek easy ways of establishing a internet shopping mall and to provide information on the structure of e-market and online shopping malls. In our country, online market has overtaken offline one, and the former has made sustained progress. Many domestic Hanbok manufacturers set up their homepages as part of efforts for online marketing or P.R. However, online shopping malls are run just by a small number of companies, and traditional Hanbok manufacturers are in worst situations. To be steadily competitive enough to keep on attracting customers, they should try to make their way through e-market from diverse angels. The purpose of this study was to delve into the establishment of an online shopping mall for Hanbok products and relevant marketing in an attempt to lay the groundwork for solidifying the position of Hanbok products in apparel e-market.

• Journal of Electrical Engineering and Technology
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• 제2권4호
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• pp.494-499
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• 2007

In this paper, we have investigated how transmission network constraints can be modeled in an electricity market equilibrium model. Under Cournot competition assumption, a game model is set up considering transmission line capacity constraints. Based on locational marginal pricing principle, market clearing is formulated as a total consumers# benefit maximization problem, and then converted to a conventional optimal power flow (OPF) formulation with a linearized transmission model. Using market clearing formulation, best response analysis is formulated and, finally, Nash equilibrium is formulated. In order for illustration, a numerical study for a four node system with two generating firms and two loads are presented.

• 마케팅과학연구
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• 제3권
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• pp.235-251
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• 1999

This research deals with the basic ideas and implementation used for developing competitive advantage in the market they serve. The market to which a company belongs is continuously evolving, not static. Therefore, the company is required to adopt a suitable strategy in the market it serves. Marketing strategy establishment requires continual adjustment in the strategy content and redirection in organizational actions to address emerging market problems and opportunities. Much of the strategic implementation is characterized by firefights aimed at solving emerging, unforeseen problems. The concept of strategy was originally introduced to provide companies with a rational means of coping with environmental changes. An old Oriental proverb said that "knowing myself and then understanding others is the best way to success". In line with the proverb, the starting point of marketing strategy establishment for the competitive advantage is to understand the activities of a company wholly. After analyzing the scope of its activities, a company has to understand the market structure, to review competitive environments, to formulate the base of the competitive strategy and to adopt differentiation strategies for obtaining the competitive advantage.

• 대한전기학회논문지:전력기술부문A
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• 제50권8호
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• pp.379-387
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• 2001

This paper shows that we can make simple modifications to an existing optimal power flow(OPF) algorithm that minimizes generation costs in order to solve the maximization of social welfare objective of the OPF in a competitive electric power market. We have illustrated the potential for the use of OPF in light of the marked impacts on nodal prices and generation/demand allocation levels among competing suppliers. This paper can provide all market players with the transparent information that ensures sufficient control over producers and consumers in case of economic of secure operation with transmission line outage while maximizing the sum of participants social benefit of participating in the electricity energy market.

• 산업경영시스템학회지
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• 제25권3호
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• pp.58-63
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• 2002

The Internet, as a commercial tool, presented a new market that connects producers with consumers through the E-commerce. Now, E-commerce spreads over almost all industries through the Internet excluding some. This research indicates the reason why the E-commerce is not activated in agricultural Industry, which is less developed than other industries. And it suggests a good example of E-commerce on the agricultural products combining on and off line markets. In addition, data-mining technique is suggested to analyze whole information in system.

• 복식문화연구
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• 제16권3호
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• pp.559-573
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• 2008

Internet apparel businesses are required to provide various kinds of consumer information which includes both product information and customer service information. "New Age Elderly" who become an aged man in 21th century are familiar with internet and other high technological tools from their life time experience with technological development and ready to enjoy the convenience the technology offers. As a preliminary step to develop internet consumer information model for elderly consumers, this study examines the US and Korea apparel e-tailing sites targeting elderly consumers. Ten Korean sites and nine US sites were selected and compared for their provision of consumer information in terms of contents, ease to access, and the completeness of the information. Results of data analysis indicate that elderly market in Korea is not yet clearly defined compared to the US. In Korea, elderly consumer market is considered as a part of middle-aged market, and there was no unique target marketing efforts observed. Korean sites are better than the US's sites in terms of shopping information, while the US sites offer detailed information about the company, and customer service information. In both countries, fashion related information is lacking and failing to satisfy fashion conscious elderly consumers. Managerial implications were discussed.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2017년도 제56차 하계학술대회논문집 25권2호
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• pp.374-375
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• 2017

As the distribution of image contents is activated, users can easily access image contents through various routes and media.In this paper, we propose a new virtual reality (VR) system, which is based on the development of IT technology, in order to prepare for the fourth industrial revolution era.We propose a method of producing educational video contents that combines maximized virtual reality.

• 대한안전경영과학회지
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• 제10권2호
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• pp.123-132
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• 2008

This study try introduce a cell manufacturing form and to make the productivity in a conveyor line manufacture for the customer requirement and market change. The case research from JIT theory that made the model to make a productivity enhance through the cell line in a conveyor line and U-line. This research was subject with a cosmetics manufacture company, therefor we can raise the quality enhance, personnel expenses and reduction of delivery effectiveness in a stroke types of industry consequently.

• 전기학회논문지
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• 제61권2호
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• pp.187-193
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• 2012

Nash Equilibrium (NE) is as useful tool for investigating a participant's strategic generation quantity in a competitive electricity market. Cournot model may give a mixed strategy NE instead of a pure strategy when transmission constraints are considered. A mixed strategy is difficult to compute, complicated to understand conceptually, and hard to implement in an electricity market practically. This paper presents that a mixed strategy does not appear in Stackelberg leader-follower model even under a transmission congestion. A solution method is proposed for the leader-follower model under a nondifferentiable space of a strategy variable. Based on the pure strategy NE with a transmission line congested, the merit of leader-follower model is shown from a social welfare point of view.