• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.7
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• pp.244-252
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• 2013

In this paper, we show that supervisory control theory of discrete event systems can be applied to analyze the problem of power in political economy. For this purpose, we introduce the decision mechanism of control inputs based on power, and the consequent behavior of a supervised system. Specifically, this paper presents the notion of power-controllability as a necessary and sufficient condition to achieve a common control objective of competing groups (local controllers). If the power-controllability is met, a modular system controlled by local controllers with power functions is not deviated from a common control objective of them.

• The Korean Journal of Applied Statistics
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• v.35 no.1
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• pp.35-47
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• 2022

The receiver operating characteristic (ROC) curve was developed to quantify the classification ability of marker values (covariates) on the response variable and has been extended to survival data with diverse missing data structure. When survival data is understood as binary data (status of being alive or dead) at each time point, the ROC curve expressed at every time point results in time-dependent ROC curve and time-dependent area under curve (AUC). In particular, a follow-up study brings the change of cohort and incomplete data structures such as censoring and competing risk. In this paper, we review time-dependent ROC estimators under several contexts and perform simulation to check the performance of each estimators. We analyzed a dementia dataset to compare the prognostic power of markers.

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.269-287
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• 2016

This study explores of press report on the death of Beongen Yoo based on network analysis and how issue diffuses via Internet and SNS in mainstream news and conservative channels of comprehensive programming. Issue salience, word's visibility and word's connectivity are the main keyword and analysis criteria of this study. Conservative channel of comprehensive programming focused on the surrounding information rather than core information compared to Mainstream media, Conservative channels of comprehensive media was interested in Yu, Beongeon, an article left, brand, rumor of a body and Mainstream media focused on the results of DNA test. Mainstream media covers this case as the discovery of the Yu, Beongeon body, Mainstream media reported as 'the discovery of the body frame, conservative channels of comprehensive programming reports as blame of investigation at the first stage. The former focuses on the cause of death and the latter focuses on the raising of strong doubts frame at the second stage. In case of the third stage the latter covered on the emphasis of the surrounding information. They frames the issue differently based on network analysis. The view point of conservative channel of comprehensive programming is diffused via SNS. This study highlights the role of journalist of mainstream media in the process of agenda-setting

• Journal of Korea Fair Competition Federation
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• no.73
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• pp.2-12
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• 2001

미 법무부의 독점금지국(the Antitrust of the U.S. Department of Justice)은, 지난달 제일제당과 두 일본기업이 미 독점금지법 위반을 인정하는데 동의했다고 발표하였다. 미 법무부 독점금지국은 미국 상거래에 영향을 주는 호전적 카르텔에 있어서는, 연루된 기업의 국적에 상관없이, 또한 그 기업이 미국 역내에 있느냐 역외에 있느냐를 불문하고 자국의 독점금지법을 일괄적으로 적용해 오고 있다. 따라서 이런 기업들은 미국 독점금지법하에서 벌금이나 심지어는 금고형으로부터 자유로울 수가 없는 것이 현실이다. 미 법무부의 독점금지국은 판사의 형 선고 재량권을 현저하게 약화시킨 형 선고에 관한 지침(United States Sentencing Guidelines), 그리고 카르텔 공동협력에 있어 공모에 대한 증거제공 및 공동행위를 신고한 기업에 대해 형량감경제도(Corporate Leniency policy)를 효율적으로 운영함으로써 지난 몇 년간 미국 역외에서 발생한 공동행위에 대해 수많은 형사적 유죄판결을 받아내었다. 지난 수십년간 독점금지국은 가격고정, 입찰담합, 시장할당 그리고 셔먼법에 의해 당연위법으로 인정되는 경쟁자간의 합의에 관련된 기업들과 개인들에 대해 조사하고 형사적으로 소추해왔다. 이 모두는 불합리하게 거래를 제한하는 합의로 독점금지법에 의해 금지되는 행위들이다. 연방법은 현재 셔먼법 위반에 대한 벌칙으로 거래를 제한하는 공모에 합의함으로써 셔먼법을 위반한 기업에게는 최고 1,000만 달러, 개인에게는 최고 35만 달러의 벌금을 부과할 수 있으며 최장 3년간의 징역에 처해 질 수 있다고 규정하고 있다. 그러나 벌금액은 1987년의 형사벌금개선법(The Criminal Fines Improvements Act: 법원이 개인 및 기업에 대한 범죄에 의해 야기된 이익이나 손실의 두 배에 해당하는 금액 중 더 큰 금액을 선택적으로 부과할 수 있다는 규정)에 의해 극적으로 늘어나고 있다. 이 논고에서는 미 법무부 독점금지국이 글로벌 카르텔과의 전쟁을 성공적으로 수행하게 된 과정을 간략하게 검토하고, 그 과정에서 다루어진 중요한 사건 중 두 사례를 선정해서 고찰해 보기로 하겠다.

• Korea journal of population studies
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• v.10 no.2
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• pp.1-16
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• 1987

This work examines reemployment processes through the use of event history unemployment data in the United States. Two aspects of these processes, the duration of unemployment and changes in the reemployment rate, are modelled and analyzed in terms of individual characteristics and their structural positions in the labor market. The secondary labor market is a competitive market in which unemployment occurs because people quit their jobs to devote more time in search for better jobs. Using search theory, the rate of reemployment has a positive time dependence as the searcher lower her reservation wage with the passage of time. By contrast, the primary market is characterized by long-term employment relations which reduce voluntary turnovers but generate layoffs temporarily. Relying on contract theory, because workers on temporary layoffs wait for recall, reemployment rates have a constant time dependence. Empirical results of unemployment durations indicate that reemployment processes are influenced by individual's positions in dual labor market structures. While the analysis suggests that the amount of search reemployment seems to be positively related to the degree of competitiveness of a market, somewhat weaker results are noted in the search reemployment processes in competitive markets.

• Korea journal of population studies
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• v.20 no.2
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• pp.43-66
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• 1997

This work examines reemployment processes through the use of event history unemployment data in the United States. Two aspects of these processes, the duration of unemployment and changes in the reemployment rate, are modelled and analyzed in terms of individual characteristics and their structural positions in the labor market. The secondary labor market is a competitive market in which unemployment occurs because people quit their jobs to devote more time in search for better jobs. Using search theory, the rate of reemployment has a positive time dependence as the searcher lower her reservation wage with the passage of time. By contrast, the primary market is characterized by long-term employment relations which reduce voluntary turnovers but generate layoffs temporarily. Relying on contract theory, because workers on temporary layoffs wait for recall, reemployment rates have a constant time dependence. Empirical results of unemployment durations indicate that reemployment processes are influenced by individual's positions in dual labor market structures. While the analysis suggests that the amount of search reemployment seems to be positively related to the degree of competitiveness of a market, somewhat weaker results are noted in the search reemployment processes in competitive markets.

• The Korean Society of Law and Medicine
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• v.20 no.3
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• pp.175-209
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• 2019

The bundled discounting which the dominant undertakings engage in is problematic in terms of competition restraint. Bundled discounts generally benefit not only buyers but also sellers. Specifically, bundled discounts usually costs a firm less to sell multiple products. In addition, Bundled discounts always provide some immediate consumer benefit in the form of lower prices. Therefore, competition authorities and courts should not be too quick to condemn bundled discounts and apply the neutral and objective standard in bundled discounting cases. Cascade Health v. Peacehealth decision starts ruling from this prerequisite. This decision pointed out that the dominant undertaking can exclude rivals through bundled discounting without pricing its products below its cost when rivals do not sell as great a number of product lines. So bundled discounting may have the anticompetitive impact by excluding less diversified but more efficient producers. This decision did not adopt Lepage case's standard which does not require the court to consider whether the competitor was at least as efficient of a producer as the bundled discounter. Instead of that, based on cost based approach, this decision said that the exclusionary element can not be satisfied unless the discounts result in prices that are below an appropriate measures of the defendant's costs. By adopting a discount attribution standard, this decision said that the full amount of the discounts should be allocated to the competitive products. As the seller can easily ascertain its own prices and costs of production and calculate whether its discounting practices exclude competitors, not the competitor's costs but the dominant undertaking's costs should be considered in applying discount attribution standard. This case deals with bundled discounting practice of multiple healthcare services by the dominant undertaking in healthcare market. Under the Korean healthcare system and public health insurance system, the price competition primarily exists in non-medical care benefits because public healthcare insurance in Korea is in combination with the compulsory medical care institution system. The cases that Monopoly Regulation and Fair Trade Law deals with, such as cartel and the abuse of monopoly power, also mainly exist in non-medical care benefits. The dominant undertaking's exclusionary bundled discounting in Korean healthcare markets may be practiced in the contracts between the dominant undertaking and private insurance companies with regards to non-medical care benefits.

• The Korean Society of Law and Medicine
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• v.23 no.1
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• pp.81-119
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• 2022

Medical device market is strongly related with health care market. Public regulation in medical device market tends to be more lenient than health care market. In this market, competition law, administrative law and intellectual property law are intertwined, and thereby a variety of legal issues could be developed. Recently, dominant undertaking's abuse case was dealt with KFTC(Korea Fair Trade Commission) and Seoul High Court. The issues were whether dominant undertaking discriminated trading partners and this discrimination was anticompetitive. In this case, Seoul High Court revoked the KFTC's decision, holding that the undertaking did not harm competition, though it has dominant power in the relevant medical device market. This decision would be a meaningful precedent, not only that there have been small numbers of dominance abuse cases in Korea, but also that this case happened in medical device market. This case dealt with various issues like market definition, market power, alleged abuse and its anticompetitive effect. The court held that medical device markets are distinguished from medical device repairing market. However, the court did not clarify that medical device repairing market is a single branded market only for repairing the plaintiff's medical devices. Second, plaintiff's dominance is based on the lock-in effect, which means that hospitals could not switch devices like CT or MRI from plaintiff to other competitors. This could be supplemented from the fact that medical devices are expensive and the using period are significantly long. However market definition based on single branded market theory could be applied in rare and exceptional cases. Therefore the general application of single branded market theory might result in overestimate of market power. This type of abuse pattern requires improper condition contrary to resonable trade practice. KFTC asserted free charge for plaintiff's copy right. However, it is not clear whether the cases for free charge are general or not. Even if so, the intention and motive of providers for free charge should be proved. The main issue of anticompetitive effect was whether plaintiff raised rival's cost. Competitor's cost was increased due to plaintiff's copy right and its license fee. However the charge for license could be within the scope of fair and legal exercise of copy right. If competitors are excluded due to legal exercise of copy right or efficiency, the exclusionary abuse could not be proved.

• Electronics and Telecommunications Trends
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• v.15 no.4 s.64
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• pp.64-76
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• 2000

정보기술분야의 국제 표준화 기구인 ISO/IEC JTC1에서 주도하여 추진하고 있는 MPEG 표준화가 성공적으로 진행되면서 이의 원활한 시장 적용을 위하여 복잡한 체계로 구성되어 있는 MPEG 기술표준과 연관된 다수의 특허권 처리를 위한 구체적인 조화 방안이 필요하게 되었다. 이는 또한 MPEG 기술의 특허권자가 많기 때문에 다자간의 협상이 요구되는 사안이었다. 이러한 문제 해결을 위하여 MPEG-2 표준의 경우 1990년대 초반부터 이 기술의 주요 개발 업체들간에 표준화의 추진과는 별개의 활동으로서 협의체를 구성하여 복잡한 특허권 관리를 위한 전문적인 기구의 설립을 검토하기 시작하였다. 이를 위한 기반으로 라이센싱의 일원화를 실현하는 특허 POOL을 구축하여 1996년 5월에 MPEG LA를 설립하기에 이르렀다. 이러한 MPEG LA는 공정경쟁에 위배되지 않는다는 법적인 승인을 거쳐 1997년 포트폴리오 라이센스를 공표함으로써 그 본격적인 활동을 펼쳐나가고 있다. 본 고는 표준화와 관련된 특허권 활용의 관점에서 획기적 사건이 되고 있는 MPEG LA의 활동 현황을 분석한 것으로서 특히 그 특허 POOL의 내역과 로열티 구조를 중점적으로 하여 포트폴리오 라이센스의 체계를 소개한다.

• 월간 기계설비
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• no.9 s.194
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• pp.59-63
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• 2006

시공을 하다가 손해를 보았는데도 발주자 혹은 원도급업체에서 인정을 안해준다면 어떻게 해야 할까? "소송을 할까?", "다음 공사는 어떻게 해. 그냥 손해보고 말지 뭐", "아니야 그냥 넘어가기에는 너무 억울해" 설비건설업을 하다보면 누구나 한번쯤 이런 경험이 있었을 것이다. 이럴 경우 공정거래위원회에 문의 하거나 건설하도급분쟁조정협의회에 문의하다가 정 안될 경우 소송에 돌입한다. 소송의 경우 대법원의 최종 판결이 나기까지 2~3년은 고스란히 걸림은 물론 소송비용도 만만치 않다. 이렇게 기간이 길지 않고 가격도 저렴하면서 해결 가능한 방법은 없을까? 물론 있다. 공정거래위원회에 제소하면 된다. 공정거래위원회는 국무총리 소속의 장관급 중앙행정기관이자 합의제 준사법기관으로서 경쟁정책을 수립 · 운영하며 공정거래관련 사건을 심결 · 처리하는 역할을 하고 있다. 정부는 지난 84년 하도급자보호 및 소비자의 보호를 위해 「하도급거래공정화에 관한 법률 」과 「약관의규제에 관한 법률」을 84년과 86년에 각각 제정함으로써 상대적으로 약자인 하도급자도 법의 보호를 받게 되었다. 본지는 지난 7월호 대한상사중재원의 '중재제도'에 이어 이번 8월호에서는 건설하도급분쟁조정협의회를 게재했고, 이번호에는 공정거래위원회에 대하여 게재한다.