• 대한전기학회논문지:전력기술부문A
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• 제54권10호
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• pp.500-506
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• 2005

With the advent of electric power systems moving to a deregulated retail electricity market environment, calculating distribution service tariffs has become a challenging theme for distribution industries and tariff regulators. As distribution business remains as a monopoly, it is necessary to be regulated. And as multiple distribution companies compete with each other, it would be efficient to adopt competition to the determination of distribution service tariffs. This paper proposes a method to calculate distribution service tariffs using yardstick regulation, which can lead to competition among multiple distribution companies. The proposed method takes into account not only recovering revenue requirements but also the advantages of the yardstick regulation based on long-term marginal costs of distribution network expansion algorithms. A computer simulation is carried out to illustrate effectiveness of the proposed method and it is estimated that the algorithm can be applied to compute the distribution service tariffs under retail electricity markets.

• Journal of Information Technology Applications and Management
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• 제19권2호
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• pp.97-116
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• 2012

Since 2008 when IPTV service entered the broadcasting market, the competition among interactive broadcasting media has been growing more and more fierce. To make a market strategy under the harsh competition, this study tried to make an IPTV customer segmentation based on the characteristics of interactive broadcasting media. From previous literature, this study drew five characteristics of interactive broadcasting media : ease of use, two-way communications, active control, variety of content, and economic efficiency. Two-step clustering based on these characteristics identified four customer segments. There were statistically significant differences in the five characteristics among the customer segments. This study profiled the customer segments and proposed competitive strategies for each customer segment.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.141-146
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• 2007

The importance of the net-based customer service in delivering supplementary after-sale services associated with product has been well documented. The strategic advantages of a well-implemented the net-based customer service are enhanced customer loyalty and higher lock-in of customers, and the resulting reduction in competition and the consequent increase in profits. However, not all customers utilize such the net-based customer service. This is partly due to the e-commerce divide, and partly due to privacy and security concerns of the customer for sharing personal information with firms. The limited level of customer adoption of the net-based customer service affects the firm profits and the customers' welfare. We use a game-theoretic model in which we model the net-based customer service system as a mechanism to enhance customers' loyalty. We find that an increase in adoption of the net-based customer service by the customer base is not always desirable for firms. and that customers who utilize such services are better off only when the overall adoption is limited.

• 한국항해항만학회지
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• 제32권7호
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• pp.561-568
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• 2008

Due to the rapid changes in world trade and shipping environment, today's ports face ever-increasing competition, from adjacent competing ports. To this reason, port service quality has been recognized as an important strategy to take competitive advantage for those competition. In general, service quality has effect on customer loyalty, and customer loyalty is the resource to sustain competitive advantage which service providers or service producers. By improving customer loyalty, companies can get more benefits and added value. However, this causality qf port service quality has not been clearly identified. Thus, various empirical studies in relation to port service quality are needed. The aim of this study is to analyze the effect of perceived port service quality on customer satisfaction and loyalty. To achieve this aim, we established 8 hypotheses based on SERVPERF in order to test correlations of 5 dimensions of port service, port service quality, customer satisfaction, and customer loyalty. From the result of the hypothesis testing, we found that customer satisfaction and port service quality do not affect customer loyalty in spite of high effect of port service on customer satisfaction.

• 산경연구논집
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• 제13권12호
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• pp.9-22
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• 2022

Purpose: Establishing a competitive advantage in the aviation market is essential as the competition among domestic airlines intensifies. Therefore, this study examined the management strategies of both large domestic airlines and low-cost airlines. Research design, data, and methodology: This study classified domestic airlines into Full Service Airlines (FSA) and Low Cost Carriers (LCC), examined each airline's current status and characteristics, and conducted case analyses of FSA and LCC based on Porter's generic competitive strategy. Results: The analyses determined that LCC primarily implemented a cost-advantage strategy, and FSA implemented a differentiation strategy. However, as competition intensified, FSA pursued cost-advantage strategies while establishing LCC through subsidiaries. There are various specific cost reduction methods, including service simplicity, scalability, high utilization, low landing fees, low-cost unit, and point-to-point flight strategies. Conclusions: LCCs are focusing on cost advantage strategies that reduce costs; however, the FSA also runs special price events that are as good as LCCs and are comparable to LCCs on some routes. Furthermore, LCC has recently expanded its mid- and long-distance routes, making competition for long-distance routes with major airlines unavoidable.

• 통상정보연구
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• 제9권4호
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• pp.329-347
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• 2007

Knowledge-based Service evolution and the e-business has emerged as a new economic activity and beyond the time and space limitations. But the Enterprises have been too inactive in their willingness and readiness to adopt e-business models and processes owing to the lack of the directions of e-business, the insufficient network infrastructures and capitals, etc., In this circumstance, as part of this research, This Papers have conducted a survey on the e-business and information conditions and status among the Enterprises. In Conclusions, this study Study on the Informationalization of the Enterprises and Knowledge-based Service Industry Enlarge Strategics for building competition of Enterprises. This study has suggested potential plans to reinforce based in the Knowledge-based Service.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권3호
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• pp.1336-1356
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• 2017

The spectrum scarcity crisis has resulted in a shortage of resources for many emerging wireless services, and research on dynamic spectrum management has been used to solve this problem. Game theory can allocate resources to users in an economic way through market competition. In this paper, we propose a bidding game-based spectrum allocation mechanism in cognitive radio network. In our framework, primary networks provide heterogeneous wireless service and different numbers of channels, while secondary users have diverse bandwidth demands for transmission. Considering the features of traffic and QoS demands, we design a weighted interference graph-based grouping algorithm to divide users into several groups and construct the non-interference user-set in the first step. In the second step, we propose the dynamic bidding game-based spectrum allocation strategy; we analyze both buyer's and seller's revenue and determine the best allocation strategy. We also prove that our mechanism can achieve balanced pricing schema in competition. Theoretical and simulation results show that our strategy provides a feasible solution to improve spectrum utilization, can maximize overall utility and guarantee users' individual rationality.

• 경영정보학연구
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• 제12권1호
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• pp.145-164
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• 2010

현재 이동통신 시장은 과거 음성통화 위주의 서비스 시장과는 달리 다양한 서비스 제공 및 사용을 기반으로 한 통신 산업의 질적 팽창기로 여겨지고 있다. 특히 3세대 서비스가 시작된 2007년 이후, 각 이동통신 사업자들은 영상통화를 시작으로 다양한 이동통신 서비스를 고객에게 제공하기 시작하였고 휴대전화 기술 역시 기술의 발전에 힘입어 디지털 융합(digital convergence) 기기로 변화된 양상이다. 이러한 상황에서, LG 텔레콤이 최초로 서비스를 시작한 풀브라우징(full browsing) 서비스가 3세대 (3G) 핵심 서비스로 주목 받고 있다. 풀브라우징 서비스란, 휴대전화를 통해 컴퓨터와 동일한 형태의 인터넷 환경을 사용 가능하게 하는 서비스로, 기존 월드가든(walled garden) 형태의 데이터 서비스의 개념을 뛰어 넘는 개방형 모바일 인터넷 서비스를 지향한다. 이와 같은 개방형 네트워크 서비스 환경에서의 기업 간의 경쟁 양상과 경쟁에 영향을 줄 수 있는 요인을 분석하는 것은 추후 이동통신 시장의 향방 및 개별 기업의 전략 수립에 매우 중요한 축이 될 수 있다. 따라서 본 연구에서는 첫째, 급변하고 있는 이동통신 서비스 시장에서의 풀브라우징 서비스의 시장 현황 및 걸림돌, 성장 가능성 등을 정성적으로 예측하였다. 둘째, 풀브라우징 서비스 선발자(first mover)로서의 LG 텔레콤과 후발자(follower)로서의 KTF, SK 텔레콤이 갖는 경쟁에 있어서의 장단점이 기존 이동통신 시장에서 나타났던 장단점과 어떻게 다르게 나타나는지 확인한 후, 이를 통해 기업 간 경쟁의 향방을 예상해 보았다.

• 통상정보연구
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• 제4권2호
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• pp.187-199
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• 2002

Global economy these days is characterized with an unlimited competition due to Globalization and Information Age. Expansion of E-business accelerates informationized and globalized society and also intensifies market competition. As a result, global economy gradually develops to knowledge-based economy, and Business Service Industry becomes essential to the production increase in the manufacturing industry as well as its high added value comes into the spotlight as one of rapidly growing business industry. Business Service Industry has not yet been academically established, however, it may be defined as the industry of which production is a mediating service in the production process rather than in the final consumption. The export of the manufacturing industry has traditionally played mainstream role in Korea where economic development has been centered on the manufacturing export. However, as with increasing emphasis on the role of service sector and highly developed industrial field in the national economy, not only the relationships between manufacturing industry and service industry becomes rapidly more involved, but also the importance of highly competitive service industry becomes emphasized in accordance with open global economy after WTO system takes off. Now it is time we come to the realization that service is in the center of national competitive power as a result of global door open in all service industry.

• 한국통신학회논문지
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• 제32권4B호
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• pp.234-245
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• 2007

MVNO제도는 선발사업자인 MNO가 보유한 필수설비를 후발사업자가 임대하여 무선통신서비스를 제공하는 이동통신시장의 서비스기반 경쟁정책이다. 서비스기반 경쟁정책은 신규사업자에게 설비를 제공하여 시장 내 경쟁을 촉진시키는 장점과 더불어 기존사업자의 투자의욕을 저하시켜 시장성장을 더디게 하는 단점도 동시에 지니고 있다. 경쟁정책의 도입과 적용이 시장구조에 미치는 영향을 고려해볼 때 도입 이전단계에서 면밀한 검토가 이루어져야 한다. 따라서 본 연구에서는 이론모형 설정을 통해 MVNO가 시장효율성에 미치는 파급효과와 효과적인 MVNO 실시방안에 대해 객관적인 분석을 시도해보고자 한다. 이를 위해 Laffont, Rey and Tirole(1998)과 Armstrong(1998)의 모형을 기초로 MVNO의 특성을 반영한 모형을 설정하여 MVNO 제도 도입 후 상호접속료, 시장가격, 수량, 일방접속료 등에 대한 시사점을 도출하였다. 연구결과 MVNO 제도가 도입될 경우 MNO간 담합 유인이 완화되어 가격이 낮아지고 수량이 증가하는 등 정태적 효율성이 향상되는 것으로 나타났다. 구체적인 MVNO의 실행과 관련하여 한 사업자만 MVNO를 실시하는 경우, 두 사업자 모두가 실시하는 경우, MNO와 MVNO를 구조적으로 분리하는 경우의 시장구조를 살펴본 결과 가격과 수량 측면에서 모든 사업자가 MVNO를 실시하는 경우가 가장 효율적인 것으로 나타났다.