• 전력전자학회:학술대회논문집
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• 전력전자학회 2017년도 전력전자학술대회
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• pp.596-597
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• 2017

For General Purpose Inverter dedicated in Motor drive, this market is blood market due to low market price. So, developing engineer must consider the cost reduction plan and do action. This inverter always needs to measure current and shunt solution can be one of cost reduction solution.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2012년도 전력전자학술대회 논문집
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• pp.605-606
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• 2012

The cost of a PV(Photovoltaic) installation are driving the market and the need for subsidized schemes, such as feed-in tariffs. Concentrated photovoltaic(CPV) is leading the development of future low cost renewable energy sources. CPV is offering high efficiency systems. This paper proposes technology and market for CPV.

• 자원ㆍ환경경제연구
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• 제23권4호
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• pp.617-641
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• 2014

2001년에 개설된 우리나라 전력도매시장은 변동비 반영(CBP) 시장으로 발전기들의 비용절감 유인을 통해 전력생산 비용 최소화를 추구하고 있다. 국내 발전사들은 발전비용 절감을 위한 다양한 노력을 기울여 왔고, 발전연료 구매비용의 인하, 고효율 발전기 도입, 수요지에 인접한 발전소 건설 등이 그 결과로 나타나고 있다. 최근 전력시장 제도개선의 일환으로 계통한계가격(SMP)에서 무부하비용 등을 제외하는 방식에 대한 논의가 제기되고 있다. 본 연구에서는 SMP에서 무부하비용 등을 제외한 후 손실발전기를 별도로 보상하는 방안이 발전사의 비용절감 유인에 미치는 영향을 분석하였다. 그 결과 가격결정 구간에 위치한 LNG복합 발전기들의 비용절감 유인이 위축될 가능성이 높은 것으로 나타났다.

• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 2001년도 International Conference CALS/EC KOREA
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• pp.493-501
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• 2001

B2C is not doing well in Asia and Pacific countries in comparison to U.S. and Europe. But there is misunderstanding of low growth of B2C electric commerce caused by cultural factor. Consumers in market are rational to decide their purchase according to total cost - market price and transaction cost. I examined this with data of Korea and U.S. Transaction cost in real market is less in Korea than in U.S. but that of electric commerce, it is much less in U.S. As a result, the choice of consumers in Korea is real market transaction while consumers in U.S. choose electric commerce.

• 자원ㆍ환경경제연구
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• 제18권4호
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• pp.745-766
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• 2009

특정 산업의 시장지배력을 측정할 때 일부 생산 투입요소의 시장가격이 존재하지 않을 경우 한계시장비용을 초과한 가격 markup으로 판단한 수치는 현실을 왜곡시킬 수 있다. 투입된 모든 생산요소의 가격들의 함수인 비용함수를 추정하는 데 있어서 총 시장비용에서 이들 투입요소에 대한 지출비용이 누락되면 완전경쟁산업에서의 시장가격이 한계시장비용을 초과하는 상황이 발생한다. 한국 제조업의 경우 원재료의 시장가격이 존재하지 않을 뿐만 아니라 관련 자료의 부족으로 공해저감자본의 가격지수를 산정하는 것이 거의 불가능하다. 본 논문에서는 환경규제를 받는 한국 철강산업의 시장지배력에 대한 가격 markup 추정치의 신뢰성을 제고하기 위하여 최적 수준의 원재료와 공해저감자본의 투입량을 전제로 제약비용함수를 도출한 후 공급관계식과 함께 연립방정식으로 추정하였다. 공급가격에 대한 시장지배력 markup의 비율로 측정한 국내 철강산업의 시장지배도는 1982년부터 2001년까지 연평균 0.49로서, 환경규제를 고려하지 않을 경우 약 8% 과대평가되는 것으로 나타났다.

• 대한전기학회논문지:전력기술부문A
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• 제52권7호
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• pp.381-386
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• 2003

To provide a specified power quality under electric market system is becoming an important issue for customers and utility company. However, there is no realistic infra-structure to design a power system for the specified power quality. Present electric market is operating under the economic point of view. The low power price could be attractive, but the effect of low price could result the lower power quality for the long time and threat power system security. This paper presents a model which conceptualize the dynamic power quality control mechanism to minimize total cost of a society which is affected electric power quality. This model aims to produce a basic infra-structure to balance cost and quality under the electric market system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 춘계학술대회 논문집 전력기술부문
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• pp.108-111
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• 2001

The electric power industries in Korea are launched into deregulation by introducing the CBP(Cost Based Pool), where generation sector of KEPCO was divided into six generation companies and the other sectors of KEPCO remains vertically integrated system. In deregulated market, participants are concerned with maximization of their profit rather than minimization of system-wide costs. Consequently, there are difficulties in applying the cost minimization for the scheduling of generation resources to CBP, because of the operation of pumped-storage hydroplants. This paper presents an operation method of pumped storage hydroplants which is helpful for the economic operation of power system considering the market in the CBP.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.71-71
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• 2009

Recently several LCD TV makers including Samsung, LG and Sony actively have released LED LCD TV models on market. LED LCD TV is just which applied LED BLUs so that its color contrast ratio fairly enhance up to 1 million:1 and its thickness minimize to a few mm. Even this aspect seems somewhat to be each panel maker's strategies for prior market occupations on whole TV market. Without regard to the reasons, we do obviously meet a new era of technically advanced LCD TV. However we have still lots of problems or issues which we must overcome technically including LED chip/packaging process, secondary optics treatment, heat managements and cost reduction issues. Here I would like to forecast market volume and trend of LED LCD TV first and then discuss above almost of technical issues and suggest their possible solutions. Even these solutions looks better technologies and if they may increase production cost significantly, we will not prefer to choice that technology since lower cost policy can open the market. Finally I'm trying to suggest how well LED, as future light source, can apply to future LCD TV technologies.

• 수산경영론집
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• 제44권1호
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• pp.25-37
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• 2013

The permit system is the most typical regulation system in Korean fishery. Even now, it has caused resource management failure, it has also invited economic inefficiency and inequity. Accordingly, the Korean government has recently introduced the fishing boats market, it would be improve entry barrier for new capital and labor in fishing industry. This study aims to survey and to analyze the status of coastal fishing boat market using the executive documents on permit system in Gyongnam province. And also, this study put focus on improve fishing permit trade take advantage of the fishing boat trading. The survey results indicated that the number of fishing boats trading is estimated about 5,000 per year, however, fishing boat market is very narrow. An analysis on fishing permit trading showed that policy support is essential to reduce transaction cost. Therefore, it is necessary to explore corresponding policy tasks, this will be reduce transaction costs and sunk cost.

• 기술혁신연구
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• 제10권2호
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• pp.107-129
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• 2002

Expansion and enhancement of information and communication infrastructure can create a market closer to an ideal type for a perfect competition, utilizing a cyber space in the network (with the expanded usage of Internet and e-commerce) and it could be a market of a monopolistic form. The government can take one of the two approaches responding to this monopolization of the digital market. First, the government maintains laissez-faire policy since the monopoly cannot be maintained over a long period of time due to an increasing in the production, decrease in the price, profit resulting from this and rapid technology evolution. Second, the government can actively interrupt the monopolization of the digital market. Monopolization in a digital market can lead to a market failure. Unstable market structure and too much frequent merger and acquisition contribute to making the digital market very dynamic. Information goods exchanged in the digital market have the features of very low marginal cost required to copy the original product whereas its initial fixed cost is very high. This explains why the information products are not priced based on the existing marginal price determination principles and why companies producing them have various product sales strategies (price/product differentiation strategy, and other sales strategies).