• International Area Studies Review
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• v.13 no.3
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• pp.93-119
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• 2009

The purpose of this paper is to analyze the world rice market through structure and conduct frameworks utilizing annual data from 1970 to 2007. The world rice market has been unstable for much of the period post-World War II, with prices volatile and the availability of supplies uncertain. Therefore, analysis of the structure and conduct of the world rice market can provide information to better formulate the direction of future policies. Also, this paper will describe the effects of total production, export rice price, market concentration, and real exchange rate for exporting countries on total export rice volume. On basis of the expected results, the international rice market possesses market power with respects to static calculation and hypothesis test, and it will be demonstrated that exporting countries' currency crucially affects the exporting quantity and market power of those same exporting countries.

• International Area Studies Review
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• v.18 no.3
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• pp.231-248
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• 2014

The relationship between market structure and social welfare outcomes has received considerable critical attention in the field of competition policy research. In particular, it is necessary to study in greater depth the impact of market power on social welfare in the telecommunications industry, which is highly likely to form a monopolistic market structure. This is because, when market powers are concentrated on few upper carriers, there are negative effects on social welfare due to an excess of profits. Against this background, the present study investigates the relationship between the market structure of the mobile communications industry (the level of market power) and social welfare outcomes (the retail rate cut) through an international comparison. The results demonstrate that both the market structure and competition status of the Korean market have had significant gaps in global trends. It also points out that the monopolistic market structure (when the leading provider has more than 50% of the market share) has significantly negative effects on consumer welfare (the retail price cut). In addition, the findings of this study suggest that the direction of competition policy should focus on not only improving market concentration(HHI), but also on mitigating the monopoly of power of a dominant operator.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.26 no.12C
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• pp.280-291
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• 2001

LL (Leased Line service) is a facility-based service as a traditional business data service, but new competition services, such as FR (Frame Relay), VPN (Virtual Private Network), and ATM (Asynchronous Transfer Mode), are value-added services. Because of different service classifications, it is hard to gather necessary data for the service providers to plan their market strategies and regulations and policies are also applied asymmetrically to each service provider. Therefore an appropriate market classification is required for the business data services. After various methods of market classification are reviewed, the Hendry model is selected in this paper to analyze substitution-degree among brands or among services. Since the structure of virtual competitions is required for the Hendry model to be applied to data service market, the market is analyzed first by the well-known Porter's model. By the analysis of Porter's model, two virtual competition structures are set up - one is for the competitions among leased line service providers, and the other is for the competitions among business data services such as LL, FR, VPN and ATM. After the Hendry model is applied to each competition structure, it is confirmed that 7 LL service providers do not compete directly, but 2 sub-markets exist for the LL service provisions. However, it is shown that 4 business data services compete directly. Using the Switching Probability Matrix from Hendry model, future market shares of LL service providers and market shares of business data services are forecasted. These empirical results are helpful for service providers to set competitive strategies with the minimization of cannibalization effect and they can easily and efficiently predict their market demands.

• Journal of Korea Port Economic Association
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• v.29 no.2
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• pp.239-253
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• 2013

Changes of a port's market share in the exports of domestic ports result from many interrelated factors. Therefore, the analysis of the export performance of a port should be put in perspective by analysing long periods to identify trends. This paper aims to show the development of competitiveness, product and geographical structure of the Busan Port's merchandise exports from 1995 to 2012 using constant-market shares (CMS) analysis. This article is relevant for Busan port because its export market shares have been showing disappointing path. The dynamic consideration of the CMS analysis, which the static indicators have been replaced by time series, helps to track all changes in the export structure and competitiveness of the Busan port over time. The long-term trend of the indicators suggests that it may be very hard for the Busan port to maintain its market share in the global environment. The advantage in competitiveness of the Busan port has vanished and the product and geographical structure effects show negative trends after 1995, pointing to vulnerability in the Busan port's exports.

• KDI Journal of Economic Policy
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• v.17 no.2
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• pp.127-163
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• 1995

WTO체제의 출범 및 향후의 OECD 가입 등에 따라 외환자유화와 자본시장 개방이 현실로 다가서고 있다. 자본시장 개방과 외환자유화는 이제까지 우리 경제가 경험하지 못하였던 구조적 충격인 동시에 향후 거시경제 운용체계에 커다란 변화를 초래할 것으로 예상되고 있다. 특히 가장 직접적으로 영향받게 될 환율의 변동패턴이 과거와 크게 달라짐에 따라 수출입과 국제수지를 포함한 거시경제변수들에 대한 직 간접적인 파급효과가 유발될 것으로 판단된다. 본고에서는 자본시장 개방에 따른 우리나라 환율변동의 구조적 변화를 조명(照明) 하고 개방경제하에서의 환율정책에 대한 시사점을 도출하고자 하였다. 우선 우리나라와 선진국(先進國) 환율의 장기추세변동(長期趨勢變動)을 비교분석함으로써 자본시장 개방 이후의 구조적 변화 가능성을 검토하였으며, 장기추세분석에 사용된 "Beveridge-Nelson 분해(分解)" 결과는 우리나라와 선진국 모두의 경우 환율의 오버슈팅(overshooting) 현상(現象)이 지지(支持)되지 않는 것으로 나타나고 있다. 이러한 장기 추세분석과 함께 구조(構造)VAR모형(模型)의 추정을 통하여 경상요인(經常要因)과 실물요인(實物要因)의 변화에 따른 환율과 상대가격(相對價格)의 반응을 추정한 결과는 환율의 시장조절기능을 존중하는 방향으로 환율정책이 변화되어야 할 필요가 있음을 시사(示唆)하고 있다.

• Korean journal of communication and information
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• v.78
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• pp.141-176
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• 2016

This study investigates changes of market structure from 2001 to 2015 in the Korean daily newspaper industry using concentration and mobility measures. The main empirical results are as follows. First, the industry's total asset shows a U-shaped trend, despite the downward trend of the industry's total sales revenue. Second, the market concentration, measured in terms of assets, shows the trend of an inverted-U shape. The relatively small firms, measured in terms of assets, have on average gained in market share while the relatively large firm have lost. Third, market concentration, measured in terms of sales revenues, shows a U-shaped trend. the relatively small firms, measured in terms of sales revenues, have on average gained in market share while the relatively large firm have lost. My central argument has been that it is desirable to supplement traditional concentration measures with mobility statistics and trend analyses in investigating and regulating market structure.

• Journal of the Korean Geographical Society
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• v.34 no.5
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• pp.493-505
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• 1999

본 연구의 목적은 정기시장을 이용하는 이동 상인과 소비자의 특성을 분석하여, 정기시장의 중심지 기능과 공간 구조를 이해하려는 것이다. 충청북도 영동군 지역을 사례로 해서 8개의 정기시장을 이용하는 상인에 대한 면접 조사와 소비자에 대한 설문 조사를 통해서 자료를 수집하였다. 정기시장의 연구는 경제-입지적 접근 방법이나 사회-문화적 접근 방법으로 행해지지만, 정기시장의 기능을 상인과 소비자의 두 측면에서 모두 고려할 필요가 있다. 본 연구에서 고차위 중심지에 위치한 정기시장은 규모가 커진 반면, 저차위 중심지에 위치한 정기시장은 쇠퇴하고 있는 것이 확인되었다. 정기시장을 유지시켜 왔던 사회적 관성과 비교 우위는 농촌의 근대화 과정에서 점차 사라지고 있으며, 이러한 사회경제적 변화가 정기시장을 쇠퇴시키고 있다.

• Electronics and Telecommunications Trends
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• v.17 no.5 s.77
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• pp.180-190
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• 2002

이동통신 장비 제조업체에게 있어 3세대 장비시장은 2세대 이후 10여 년 만에 맞이하는 대규모 장비시장이라는 현실적인 측면은 물론, 향후 본격적으로 형성될 3세대 단말기 시장경쟁에서 시장을 선점할 수 있다는 측면에서 전략적으로 중요한 위치를 차지한다. 본 연구에서는 현재까지 이루어진 3G 시스템 공급 시장자료를 기반으로 시장구조와 3G 장비공급 시장의 특성 파악을 통해 국내 제조업체들의 장비시장 진출의 당위성과 진출을 위한 전략수립시 도움이 될 수 있는 시사점을 제시하고자 한다.

• 정보화사회
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• s.79
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• pp.18-23
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• 1994

지난 4월 통신개발연구원은 "21세기를 향한 통신시장 구조개편방향" 보고서를 통해 업계의 관심과 논란의 대상이던 구조개편의 방향과 방법론을 제시했다. 이에 국내 통신산업의 발전을 염원하며 건전한 토론을 위해 부가통신사업자의 의견을 게재한다.

• 대학교육
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• s.133
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• pp.21-29
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• 2005

사립대학 구조조정 방안의 큰 틀은 시장수요에 대응한 교육의 질 관리에 초점을 두고 구조조정이 이루어져야 하며, 정부에서는 각종 법률로 정하고 있는 재정·세무상의 규제를 풀고 사립대학에 대한 국고지원을 확대하여야 하며, 각 대학에서는 시장의 논리에 입각하여 대학의 본질적 역할을 재정립해 가야 할 것이다.