• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.544-545
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• 2008

본 논문에서는 전력 도매요금(현 전력거래제도에서의 시간대별 계통한계가격) 상승시, 고객의 부하절감을 유도함으로써 사회적 후생을 최대화 할 수 있는 상시부하관리 개념을 제안하였다. 2007년 계통을 대상으로 전력거래 모의프로그램인 P-POOL를 이용하여 경제적 측면에서의 효과를 분석하고 그 결과를 제시하였으며 본 결과는 향후 우리나라에서의 가격기반 부하관리 메카니즘 도입의 기초자료로 활용이 기대된다.

• The Journal of Fisheries Business Administration
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• v.47 no.1
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• pp.101-113
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• 2016

The purpose of this paper is to analyze theoretically and empirically spillover effects of fishery quota on related markets through their demand curves. Theoretically, the spillover effects of a change in quota can be captured through the directly distorted market alone by computing surpluses associated with the new and old equilibrium. This study estimates empirically demand functions in the context of both the partial equilibrium and general equilibrium. The spillover effect can be computed from the difference between these two estimates. The econometric methodology to estimate the demand curves in the context of general equilibrium is presented and illustrated. The empirical result of fishery markets shows that spillover effects transmitted across other markets are not small and approximately account for 43.3% of the partial equilibrium welfare effects.

• KDI Journal of Economic Policy
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• v.12 no.2
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• pp.121-134
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• 1990

This paper examines the redistributive potential of capital taxations within the two-class overlapping generations model, where only capitalists are intergenerationally linked through heritable capital stocks. In particular, the dynamic welfare incidence of two different capital taxations is examined; first a capital income tax levied uniformly on interest earnings, and second, an estate tax levied on the intergenerational transfers of capital stock within the capitalists' families. Redistributive effects are measured by examining how the permanent and unanticipated changes in proportional capital income tax and estate tax rates affect workers' welfare when the proceeds in each period are distributed, in a lump-sum fashion, among young workers. It is shown that, except for in the short run, both the capital taxes are ineffective and may actually lower the workers' steady state welfare through the shifting of tax burden toward workers from capitalists. Differential incidence analysis shows that redistributive potential is diminished further when the lump-sum transfers are financed by the estate tax rather than by the capital income tax. Although the model examined in this paper is based on simple and strong assumptions, this study suggests that redistributive policy using the capital taxations may only have distortionary effects in the long run, without improving workers' welfare, by incurring dead-weight loss unless additional fiscal measures are implemented to increase the investment incentives.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.1B
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• pp.24-33
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• 2009

This paper considers network competition where the subscribers experience network congestion when they use the network and the network providers determine the network price and capacity. This paper discusses the impact of the network competition on social welfare. Network provider determines the price and capacity considering this characteristics of this sensitivity to network congestion where the subscriber has different preference about the congestion. This paper shows that network provider who wants to serve the intolerable customers (who is very sensitive to the congestion) offers higher price and capacity. However, this provider prepares lower capacity than socially optimal capacity. This is because the network provider seeks to earn more profits from additional subscriber while it is desirable to invest the capacity to give the entire subscribers a non-congestion network in the view of social welfare.

• International Commerce and Information Review
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• v.13 no.1
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• pp.55-76
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• 2011

America is traditionally friendly to South Korea. Last year in 2008, U.S. exports to South Korea totaled $32.4 billion. The U.S. and Korean must reciprocate economic exchange. The purpose of this study to measure the re-purchase intentions and product satisfaction in America image. The major result of article can be summarized as follows. The factors of this article have been divided into 'society safety', 'industrialization level', 'economic image', 'political image', 'cultural image', and 'the character of a nation'. In the empirical result of the article, the goods satisfaction for America country image would be shown in the results. The first, 'society safety', 'industrialization level', 'the character of a nation' are significantly positive statistically to goods satisfaction. The second, 'economic image', 'political image', 'cultural image' are not as significantly positive statistically speaking.

• KDI Journal of Economic Policy
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• v.14 no.2
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• pp.55-75
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• 1992

At the outset of import liberalization, most economists expected a significant drop in the prices of domestic goods that faced foreign competition. However, it is now generally acknowledge that a significant drop in prices of those goods has not occurred. A common claim is that the prices did not drop significantly because the major importers of many imported goods were also the domestic producers of competing goods. The objective of this paper is to analyze the welfare effect of importation by domestic firms that produce competing goods, to identify the factors that facilitate such business practices, and to formulate a policy that could improve the welfare. We proved that importation by competing domestic firms definitely raises the prices of both imported and domestic goods compared to the situation where foreign goods are imported by non-producers, ceteris paribus. The intuition behind this result is that since a producer-importer is essentially a cartel, its overall profit maximization requires reduced competition between the products that it sells. On the other hand, if a producer-importer is more efficient at distrinbution than a simple importer, the comparison between the two cases is a priori indeterminate. We also find that the industries in which domestic producers are actively involved in importing competing goods are the ones in which the distribution channels are tightly controlled by importer-producers. This finding suggests that exclusive dealing contracts, which work as an entry barrier, may be the source of importing by domestic producers. We argue that in a country such as Korea, where financial market is highly incomplete, tight control of the distribution channels by oligopolistic manufacturers is likely to be an effective entry barrier that leads to importing by domestic producers of similar goods. We further argue that seemingly superior distribution costs of importer-producers is likely to be a result of market foreclosure which would disappear once the entry barrier of exclusive dealing contracts is removed. Above findings suggest that market imperfections are the source of importation by domestic competitors, which in turn constitutes a market imperfection in itself and reduces consumer welfare. As potential remedies, we considered three alternatives; direct price control by the government over the imported goods sold by major domestic producers, regulation of trade itself between major producers, and regulation of exclusive dealing contracts. For reasons both theoretical and pratical, we find that the last alternative is the most attrative. Prohibiting exclusive contracts between manufacturers and dealers in industries where exclusive dealing contracts are a significant entry barrier is expected to break up the importer-producer cartel and improve the welfare.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.2
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• pp.207-214
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• 2009

This paper provides the analysis of economic theories about bundling in telecommunications service. First, the negative aspect of bundling is discussed. Second, the competitively neutral aspect of bundling which is counter response of negative effect is analyzed. Third, some variables affecting the bundling is investigated and the corresponding effect of bundling is discussed. The bundling can increase the social welfare under some circumstance while it sometimes decreases economic efficiency by detering the entry of competitive firms. Finally, regulatory approaches on bundling such as the criteria of bundling provision, the requirement of equal access, the discounting scheme ad a price control, ex anti regulation vs. ex post regulation, and the criteria of predatory pricing are provided.

• Journal of Regulation Studies
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• v.27 no.1
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• pp.123-151
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• 2018

There have been voluminous debates on the economic effects of the Sunday shopping restriction in Korea. This paper summarizes the issues on the restriction, critically reviews the previous researches, and proposes policy alternatives. First, the Sunday shopping restriction in Korea significantly lowers supply-side efficiency. Second, the restriction considerably reduces demand-side efficiency due to higher transaction costs. Third, there is no empirical evidence showing the restriction improves equity overall. Fourth, even if equity improvement occurs, there are a number of policy alternatives that can achieve the same equity effect with less efficiency loss.

• Journal of Convergence for Information Technology
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• v.9 no.7
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• pp.78-84
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• 2019

The purpose of this study is to introduce the concept of the Smart Sewer System and to analyze the economic ripple effect when smart sewer is built all over Korea. The research method is the input-output model based on the assumption that the smart sewerage will be constructed throughout the Korea from 2021 to 2040. Estimation results show that the production-induced effect reaches 343.73 trillion Korean won, the added value-induced effect is 155.867 trillion Korean won, and the employment-induced effect is estimated by 25,118,470, indicating that the smart sewer project leads to being considerably large in the nation-wide economy. In addition, the increase of social welfare by smart sewer is expected to be realized through the improvement of both the environment improvement and the national health. Therefore, the smart sewer project should be implemented without delay by planning a concrete road map and putting it into effect with a budget.

• Management & Information Systems Review
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• v.34 no.5
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• pp.49-69
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• 2015

The objective of this study is to understand the influence of Work-Life Balance (WLB) support system on employee engagement (organizational commitment and job commitment) and to examine the moderating effect of perceived organizational support (instrumental and emotional) on the relationship between WLB and employee engagement. To test the research model and hypotheses, this study analyzed 537 responses from employees of sample companies that were carrying out the WLB support system during the period of December 1 through 31, 2014, and the results of the analysis are as follows: First, the correlation between employee engagement (organizational commitment) and the WLB support system showed that the influence of WLB support system on employee engagement(organizational commitment) was greater in the order of growth, job, and family support system. Second, the correlation between WLB support system and employee engagement(job involvement) showed that growth and job support system had significant relationship. Third, in the relationship between WLB support system and employe engagement(organizational commitment), there was no moderating effect of perceived organizational support. Fourth, in the relationship between the WLB support system and employee engagement(the job involvement), both institutional and emotional supports factors of the perceived organizational support had moderating effects in the relationship between growth support system and employee engagement(job involvement). This study has academic significance in that it is an empirical study examining the relationship between the WLB support system and employee engagement, which has not actively investigaged in Korea.