• Title/Summary/Keyword: System economic analysis

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A Study of the Distribution System of Korea's Consumer Electronics Industry (가전유통구조(家電流通構造)의 문제점(問題點)과 개선방안(改善方案))

  • Nam, Il-chong
    • KDI Journal of Economic Policy
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    • v.14 no.3
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    • pp.23-48
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    • 1992
  • The Korea's Consumer electronics industry has exhibited a spectacular growth in the last three decades, expanding into one of the most important industries in Korea in many respects. One interesting aspect of the industry is the dominant role played by the Big Three of the industry, Gumsung, Samsung, and Daewoo. Since 1984, the three companies have accounted for about 90% of the sales in key items such as color TV, VTRs, refrigerators, and washers. The Big Three not only dominated the manufacturing stage, but also the distribution stage of the industry through their networks of exclusive dealers that constitute the major part of the distribution market. In this study, we analyzed the effects of the exclusive dealing by the Big Three on the efficiency of the Korean economy. We find that exclusive dealing by the Big Three could seriously constrain competition in both the manufacturing and distribution stages of the industry. Exclusive dealing by the Big Three effectively forcecloses the market for most other manufacturers as well as deterring entry into the manufacturing stage by potential entrants. Further, it impedes the growth of distributors that achieve the economies of scale and scope and restricts competition by the Big Three. In contrast, we could find little evidence that exclusive dealing by the Big Three is pro-competitive or enhances welfare. As a remedy to this problem, we suggest that the Fair Trade Commission of Korea should regulate the exclusive dealing by the Big Three, thus opening the door for the growth of distributors that are not bound by an exclusive dealing relationship with any of the Big Three. Put differently, we urge the Korean Fair Trade Commission to apply the Article 23 (5) to the exclusive dealing by the Big Three. Article 23 (5) that states that unfair restrictive dealing is illegal has never been clarified by the FTC. We believe that our analysis could also serve as a basic for the clarification of the article in general.

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Effects of the Trade Insurance and Exchange Risk on Export: The Experience of Korea (무역보험과 환위험이 수출에 미치는 영향)

  • Kim, Chang-Beom
    • International Commerce and Information Review
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    • v.13 no.3
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    • pp.77-95
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    • 2011
  • This paper investigates the relationship between export and economic variables such as trade insurance, world economy activity, relative price, unemployment rate, exchange rate volatility, using monthly data. I employ Johansen cointegration methodology since the model must be stationary to avoid the spurious results. The results indicate that there is a long-run relationship between export and variables. Also, the empirical analysis of cointegrating vector using the CCR, DOLS, FMOLS reveals that the increases of trade insurance has positive relations and the increases of exchange rate volatility have negative relations with export. Especially, DOLS based on Monte Carlo simulations, of this estimator being superior in small samples compared to a number of alternative estimators, as well as being able not only to accommodate higher orders of integration but also to account for possible simultaneity within regressors of a potential system. This paper also applies impulse-response functions to get the additional information regarding the responses of the export to the shocks of the variables. The result indicates that export positively to trade insurance and then decay fast compare with exchange rate volatility. Consequently, trade insurance plays the role of trade policy for export promotion in Korea. Whereas, increase of exchange risk result in reduction of export. Therefore, the support of trade insurance should be expanded and the stabilization of the foreign exchange market must be done for the export promotion.

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Influencing Factors to Increase the Wage Differentials between Large and Subcontracted Small-Medium Enterprises in Korea (위탁대기업과 협력중소기업 간 임금격차 확대 영향요인)

  • Kim, Hye Jeong;Bai, Jin Han;Park, Chang Gui
    • Journal of Labour Economics
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    • v.40 no.1
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    • pp.1-36
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    • 2017
  • This study aimed to analyze influencing factors to increase the wage differential between large enterprise and subcontracted small-medium enterprises by using panel data composed of 19 manufacturing industries for 16 years from 1999 to 2014. According to the results of analysis, in large enterprises the elasticity of substitution between the labor inputs and the subcontracted product supplies from small-medium enterprises was significantly less than 1. So, the increase in wages of workers of large enterprises, whose degree of employment protection was relatively high, seemed to increase the share of wage cost in total cost and was resulted to decrease the cost share of subcontracted product supplies significantly. This was interpreted to be able to exert a negative influence upon the price of subcontracted product supplies and the wages of workers in subcontracted small-medium enterprises, and, therefore, to increase the wage differentials between large enterprises and subcontracted small-medium enterprises. Furthermore, it was also found that the increases in the labor union participation rate at large enterprises and the openness rate of the industry concerned were contributing to make such effects much stronger significantly. In order to mitigate the wage differentials and the polarizing trend in labor market, we can suggest to establish a certain kind of flexible wage system and to introduce co-bargaining practices with the workers of subcontracted small-medium enterprises within large enterprises, and also for the workers of small-medium enterprises, to prepare new social systems to upgrade their human resources and job skills drastically.

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Typicality of Female Main Characters Appearing in the TV Melodrama Genre -From 1992 till 2012- (멜로장르 TV드라마에 나타나는 여성 주인공의 전형성 (1992년부터 2012년까지))

  • Lee, Hwa-Jeong
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.604-613
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    • 2013
  • Advanced research has often discussed that the melodrama genre reproduces typical female image more than any other genre in setting up female image. However, the advanced research is not based on quantitative methods, so it is hard to say that it has verified the conservativeness or typicality of the melodrama genre. This study applies quantitative research methods for the typicality of female image in the TV melodrama genre and intends to prove it through comparative analysis with the overall genre female image. According to the study result, the TV melodrama genre's shows less change than the overall genre female image. About their appearance, the overall genre female image indicates increase of non-femininity and activeness in their relationship with others; however, in the melodrama genre, women with typical feminine appearance and passive female image have been maintained from 1992 till 2012. In the system in which women shared men's capital in their lover or wife's status, their feminine and beautiful appearance was used as women's physical capital that enhances their possibility to be selected by men. Even in the present that women's economic power has been elevated, however, the melodrama genre still maintains typical female image distinctively. Typicality of such female image shown in the melodrama genre of which major viewers are women seems to represent contemporary women's ambivalent and contradictory desire.

Economic impacts of linking carbon markets among Korea, China and Japan (한중일 탄소시장 연계의 파급효과 분석)

  • Kim, Yong Gun
    • Environmental and Resource Economics Review
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    • v.21 no.4
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    • pp.809-850
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    • 2012
  • A linkage of emissions trading schemes among Korea, China and Japan demonstrates overall increase in gross domestic product (GDP). However, it also demonstrates reductions in household consumption, and the impact of integration could be very unbalanced between the countries. In particular, the reductions in domestic marginal costs are high in both Korea and Japan. Therefore, household consumptions in the two countries decrease despite increases in GDP because Korea and Japan will be purchasers of emissions rights. China, on the other hand, will experience the opposite. The unbalanced impacts on real household consumptions are intensified when emission credits are allocated via paid auctions instead of free allocation. This was demonstrated to be the case because the circumstances of three countries are intensified when using a paid emissions credit allocation scheme, and their differences could potentially hinder the cooperation between the three countries. Under the free allocation scheme, the emission trading schemes' unbalanced impacts on consumption could be mitigated, but unavoidable negative impacts of free allocation schemes are also serious. Based on the analysis results, Korea, China, and Japan will individually face complicated impacts if their carbon markets are integrated. Although the GDP of three countries will increase as a result of carbon market integration, the benefits of integration will surely be unbalanced, and the three countries will experience negative impacts in terms of actual consumption or employment. In particular, increases in income and consumption, reductions in employment, and energy dependence by credit purchasers (Japan and Korea) and production reduction and possibility of offshoring faced by revenue producing countries (China) could serve as a barrier to carbon market integration. To maximize the positive influences of carbon market integration while reducing the risks of negative side effects, the development and application of complimentary policy tools, such as import duties or discounts for emissions credits, are required.

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Personalized Dietary SikdanOme Recommendation based on Obesity Related SNP Genotype and Phenotype (비만 관련 SNP genotype-phenotype 정보기반의 맞춤 식단옴 추천)

  • Shin, Ga-Hee;Lee, Sang-Min;Kang, Byeong-Chul;Jang, Dai-Ja;Kwon, Dae Young;Kim, Min-Jung;Kim, Ri-Rang;Kim, Jin-Hee;Yang, Hye Jeong
    • The Journal of the Korea Contents Association
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    • v.16 no.10
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    • pp.435-442
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    • 2016
  • Obesity extends the global economic burden and it causes that the failure of a reduction of physical activity, and diet management. In this work, nutritional information and personalized diet based on calorie supply system and is discriminatory utilized the obesity-related SNP information in order to recommend a personalized functional foods. This study performed a GWAS analysis for the excavation of a Korean-specific and obesity-related SNP, which utilizes genetic information were recommended by entering a personalized diet in accordance with the SNP genotype-phenotype information. In addition, we integrated Database with relation of nutrient for utilizing the USDA Food information and it was applied to recommend with Sickdanome. As a result, the obesity-related SNP information was confirmed in the sample which has the normal value BMI. In this study, we have recognized that the phenotype information related obesity, BMI is inconsistent with the SNP genotype information. This result is shown that it is necessary to provide the personalized dietary SickdanOme recommendation based on the both pheotype-genotype information.

The Dynamic Optimal Fisheries Management for Spanish Mackerel (삼치어종의 동태적 최적어업관리)

  • Cho, Hoonseok;Nam, Jongoh
    • Environmental and Resource Economics Review
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    • v.29 no.3
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    • pp.363-388
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    • 2020
  • The purposes of this study are to not only estimate optimal harvests and efforts using the surplus production methods for Spanish mackerel caught by multiple fishing gears, but provide dynamic optimal fisheries management for these gears using the current value Hamiltonian method. To achieve the above purposes this study uses several models such as Gavaris's general linear model for standardizing fishing efforts, surplus production method for estimating biological and technological coefficients, current value Hamiltonian method for estimating dynamic optimal harvest and efforts, and sensitivity analysis for diagnosing economic influences of these fisheries. As a result, this study showed that Spanish mackerel was overfished by multiple fishing gears based on surplus production method and the current value Hamiltonian method. Also, this study found that when the price and cost proportionally changed, the optimal harvest and fishing effort sensitively responded to the stock level of Spanish mackerel. Next, this study suggested that the multiple fishing gears for Spanish mackerel should reduce unnecessary costs such as operating time or inefficient fuel consumption. Finally, this study provided reasons Spanish mackerel should be included in the TAC system in a view of profit maximization based on sustainable use of the Spanish mackerel.

Algorithm Deciding Offshore Cable Layout Valid for Integrated Power Supply Between Adjacent Islands (근거리 도서간 통합전력공급에 유효한 해저케이블 포설 방안 결정 알고리즘)

  • Kim, Mi-Young;Rho, Dae-Seok;Moon, Guk-Hyun;Seo, In-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.2
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    • pp.28-36
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    • 2018
  • Islands are supplied with power from diesel generation or from photovoltaic power generation, and problems with offshore environmental impacts (age deterioration, salt pollution), environmental pollution (exhaust gas, noise, dust) and power generation costs (installation, maintenance) have increasingly emerged. In 2016, the cost recovery rate was only 27%, and deficits reached 73% on 65 islands managed by KEPCO. In terms of deficits, the costs incurred in the power generation sector accounted for 91%, with the ratio of fixed costs at about 60%. Analysis suggests that operating costs can be reduced with an optimal power supply system that improves power generation efficiency and makes operating systems more efficient. Therefore, it is possible to simplify fuel transportation and facility maintenance, because one island integrates the power plants of remote islands, and offshore cable is used to supply power to the other islands. From the economic evaluations in this paper, an algorithm deciding offshore cable layout validity for an integrated power supply between adjacent islands is presented. Simulation results based on the proposed algorithm confirmed that an integrated power supply is economical for existing stand-alone operations on islands having diesel generation, low peak power, and near distances.

Analysis and Evaluation of Integration Policy of Local Government in 2010~2014 : Focused on Multi-Dimensional Model (2010~2014년 시·군·구 통합정책의 분석과 평가: 다차원분석모형을 중심으로)

  • Kim, Cheol Hoi;Jin, Jae-Wan
    • The Journal of the Korea Contents Association
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    • v.15 no.1
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    • pp.123-131
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    • 2015
  • The purpose of this study was to find out the reason why the integration policy of local government in 2010~2014 has failed in the light of multi-dimensional model including normative, structural, constituentive, and technical dimension. Central government pushed integration policy of local government focused on increasing economic efficiency based on the theory of economy of scale on 16 regions and 36 local governments. Only one region(Cheong-Ju and Cheong-Won), however, completed integration procedure in 2014. Although most regions don't have common value on integration, and cultural, political ties in normative and structural dimension, central government pushed the integration policy. Futhermore central government failed to coordinate various interests of the participants and design incentive system including demands of local residents in constituentive and technical dimension. Based on this study central government should consider these policy implications when it propel the integration policy of local government in the future.

Development of Base Concrete Block for Quiet Pavement System (저소음 포장용 기층 콘크리트 블록 개발)

  • Lee, Kwan-Ho;Park, Woo-Jin;Kim, Kwang-Yeom
    • Journal of the Korean Society of Hazard Mitigation
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    • v.10 no.1
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    • pp.35-42
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    • 2010
  • The rapid economic development induced the massive road constructions, becoming bigger and high-speed of the vehicles. However, it brings lots of social problems, such as air pollutions, traffic noise and vibration. Special concrete block for the base course of asphalt pavement is needed to decrease traffic noise such as tire's explosive and vehicles sound, applying Helmholtz Resonators theory to asphalt pavement. If it is applied to the area where it happens considerable noise such as a junction, the street of a housing complex and a residential street, it is one of considerable method to solve the social requirements of noise problem. This research examines couple of laboratory tests for the sound absorption effect of the concrete block and the base concrete block. There are specimens which is fixed hall-size, space, depth as the condition of this research, and these are analysed of noise decrease effect using different condition of the first noise of each vehicle. As a result of analysis data according to vehicle noise volume, measurement distance, a form and size of the hall using the base concrete block, the use of special concrete base showed a good alternative solution for decreasing traffic noise level, from 4 dB to 9 dB.