• Journal of Korean Society of Water and Wastewater
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• v.31 no.2
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• pp.149-159
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• 2017

It is considered necessary to renewal a considerable number of water supply facilities in Korea because they began to be intensively buried in the period of rapid economic growth. Accordingly, local water providers are required to take measures against this situation, but they have currently been caught in a vicious circle of the lack of budget spent in renewing water supply facilities because county-based small-scale local water supply cannot afford to cover annual expenditures with their revenues from water rates. Therefore, this study developed an optimal renewal planning model capable of achieving a balance of financial revenue and expenditure in local water supply using nonlinear programming and furthermore of minimizing the total cost incurred during the analysis. To this end, this study selected the water supply area located in County Y as a research area to build the financial revenue and expenditure and used Solver function provided by Microsoft Excel to use nonlinear programming. As a result, this study developed an optimal renewal planning model minimizing incurred costs in consideration of 6 items in the financial revenue and expenditure. The optimal renewal plan was modeled according to the available annual budget. As a result, this study proposed SICD, a scenario to minimize total costs from the perspective of water suppliers, and SITS, a scenario to minimize the increase in water rates from the perspective of consumers. It can be said that the method proposed in this study is the core of the optimal financial and renewal plans as a final stage of asset management for water supply facilities. Therefore, it is considered possible for local water providers to use the method proposed in this study according to circumstances for the asset management of water supply facilities.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2006.11a
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• pp.15-41
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• 2006

The increasing popularity of the concept of technology innovation has been driven by greater international competition in a rapidly globalizing economy. Both countries and enterprises are placing more and more emphasis on it in order to gain competitive advantages. This article gives a general introduction about the research and application of technology innovation in China. At the national level, one obvious fact is that the total R&D expenditure increased rapidly during the year 2001 to year 2005 and reached Y 245 billions, and China made 2,452 international patent applications in 2005 and became the world's 10th largest user of the Patent Cooperation Treaty. At the industry and enterprise level, much progress has also been made in China. This article uses the high-tech industry as an example to introduce the industry and enterprise technology innovation respectively. Corresponding to the practice, scholars also did a great amount of research work related to technology innovation. This article sums up all the work done from the macroscopic aspect (such as national technology innovation strategy, regional innovation system, industry technology innovation) and microcosmic aspect (such as enterprise technology innovation strategy, patterns and evaluation standards). Based on the analysis, this article discusses the limitation of current work and research trend about the technology innovation.

• Korean Security Journal
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• no.62
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• pp.321-346
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• 2020

The purpose of this study is to identify the relationship among customer access service, internal response, and consumption behavior of security agency users through a structural model. The research will be meaningful in that it can contribute to the development of the security industry by identifying the importance of customer access service, which is an empirical face of buyers using security agency, and thus establishing the relationship between consumer reaction and consumption behavior. The study subject is a store that uses security agency in areas with dense shopping districts in Cheonan and Asan of South Chungcheong Province, where 375 store representatives and employees were selected to conduct the research. Research tools were modified and used to suit the purpose of the research based on domestic and foreign prior research. Using two statistical programs, SPSS 25.0 and AMOS 25.0, data processing was performed: frequency analysis, exploratory factor analysis, reliability analysis, confirmed factor analysis, and structural model analysis. The statistical significance level was analyzed by setting a value of .05 and the following conclusions were obtained. First, the customer access service of security agency users has a positive impact on consumption behavior. Second, the customer access service of security agency users has a positive effect on the internal response. Third, the internal response of security agnecy users has a positive effect on consumption behavior. Fourth, the internal response has a positive effect as a medium effect between customer access service and consumption behavior of security agency users.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.159-170
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• 2019

IC industry is one of the foundation and core industries of modern information industry. Therefore, the study of this industry has important theoretical and practical significance. The main purpose of this study is to measure the degree of close correlation between the two indexes through correlation analysis of the selected indicators, so as to study the development trend and direction of IC. Based on the theory of induced innovation and the theory of comparative advantage, this paper analyzes the correlation between the profit of the IC industry and the following three indicators by using chart analysis method, covariance analysis method and correlation coefficient analysis method. These three indicators are R&D expenditure, new product development costs and annual export amount of IC. The selected data are mainly from CHINA STATISTICS YEARBOOK ON HIGH-TECHNOLOGY INDUSTRY. Through the research, it is found that the profit of China's IC industry is positively correlated with the first two indicators and negatively correlated with the annual export amount.

• KDI Journal of Economic Policy
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• v.34 no.2
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• pp.17-40
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• 2012

We study externality costs of capital investment under limited commitment. We solve for the constrained efficient allocation with a limited commitment environment and find positive externality costs of capital investment provided that full-risk-sharing is not feasible. In a decentralized version of limited commitment environment, a one unit increase of capital investment by an agent increases all individuals' autarky values in the economy and generates externality costs in the economy. This externality cost provides a rationale for positive capital taxation even in the absence of government expenditure. In order to internalize this costs, the government use a positive rate of linear capital tax in the decentralized economy.

• Journal of Family Resource Management and Policy Review
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• v.17 no.2
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• pp.55-74
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• 2013

This research developed standardized satellite accounts for household production to measure the entire production in Korea using representative Korean data. This study utilized standardized methods for measuring the expenditure and consumption of expendable supplies as an element of intermediate goods in household production. The results of this research can be summarized as follows. First, the total value of household production in Korea in 2009 turned was 268 trillion won, which would be 10.16% of the GDP, based on using the method of replacement by specialty for estimating the value of housework, while it was 356 trillion won, which would be 13.5% of the GDP (2,636 trillion won), based on the method of opportunity cost. Second, the economic value of labor invested in household production was 220 trillion won when using the data from 12 main corresponding wages in the market, while it was 203 trillion won when using the method of total replacement, which used the wages of housekeepers, and 290 trillion won when using the method of opportunity cost in measuring the value of housework labor. Third, in estimating the proportion by section in terms of the total value of household production, the portion of labor in household production was measured from 76% to 82%, depending on the methods used, which is the most significant section. These results indicate that housework has the characteristics of labor-centered work. On the other hand, the value of expenditure on and consumption of expendable supplies, as one element of intermediate goods, is 63 trillion won, which is 17.7% (using the method of opportunity cost in measuring the labor of housework) of household production. Also, the value of capital goods, as the other element of intermediate goods is 2.3 trillion won, which is 0.9% (using the method of opportunity cost) of household production. In conclusion, as an element of household production, housework labor was higher in household production than expenditures on expendables, especially for cooking, cleaning, and caring for children. In the future, people should be cautious about estimating that the amount of household work could be reduced, as women's labor in the market and the household work produced by the market will increase.

• Journal of Navigation and Port Research
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• v.42 no.5
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• pp.331-340
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• 2018

Shipping containers promote rapid development of the transport industry, and generate economic and social value. However, problems often occur due to imbalance in dynamics between exports and imports, container relocation, traffic congestion, and general shipping network designs. So, efficient and cost-effective cargo management has become crucial for the Jeju Island - Mokpo container route (JMCR) in South Korea. Dozens of recent studies reveal that collapsible or foldable containers, may become an innovative solution to problematic issues within the shipping industry. The major purpose of this study is to discuss conditions required for successful commercial application of foldable containers, based on a cost-benefit analysis precisely for the JMCR. Findings reveal usage of foldable containers can be cost-effective, if containers make a "FULL<->EMPTY" route. To the contrary, a "FULL<->FULL" route can drastically increase expenditure. However, economic analysis of actual figures for 2010-2015 indicate that benefits for Mokpo - Jeju direction are significant to cover losses on the Jeju - Mokpo line. Seasonal patterns and mixing percentages of foldable and standard containers on the route, may also produce cost-effective solutions. Sensitivity analysis reveals that benefits from using foldable containers, depend mostly on empty container shares in addition to various extra costs.

• Journal of Korean Society for Quality Management
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• v.37 no.4
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• pp.100-110
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• 2009

The customer-driven efficiency evaluation has been in the mainstream of public administration research, since the 1980s. However, there have been relatively fewer efficiency evaluation research in public administration compared to those of public institutions. This paper is to analyze the service efficiency of public sector using Data Envelopment Analysis(DEA). We suggested two stage DEA model to accomplish efficiency evaluation that an operation and performance characteristic of the public institution were reflected and then the number of the government employee and tax expenditure per residents were used as the input elements at the 1st stage and four integrated service dimensions were used as the output elements. At 2nd stage, four integrated service dimensions and citizen's satisfaction were used as the input and output elements respectively. In addition, we suggested PSEI(Public Service Efficiency Index) which showed the efficiency of the public sector using the two stages efficiency result. According to the results for '07, there were no efficient institutions among 15 DMUs and the most efficient public institution was K(0.9150). In case for '08 analysis, there was only one efficient DMU.

• Journal of Digital Convergence
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• v.12 no.4
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• pp.475-484
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• 2014

This research was about the economic impact and the development plan by analyzing satisfaction and the contributions of Keochang International Festival(KIFT) that visitors recognize. It also sought ways to the development of an KIFT by conducting in-depth interviews with experts. According to the survey of visitors' recognition, KIFT contributed to the regional and the arts development. And it also showed that people recognize the contribution to imaging Keochang as the city of art. In regard to the visitors' satisfaction, they were satisfied generally with the festival and performance, but the satisfaction level was quite low with the traffic, service quality, etc. In respect to the economic impacts, the direct cost effect caused by holding the theater festival was 128,000 thousand won in 2013. Also the annual economic(indirect) impact on the production was 16 billion won, personal income 319,358 thousand won, added-value 7,549,540 thousand won, and taxes 780,733 thousand won.

• Korea Journal of Hospital Management
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• v.11 no.3
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• pp.1-18
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• 2006

The purpose of this study is to analyze the relationship between intangible asset items and company value by empirical research in the medical industry, which may enhance usefulness of the results of other empirical research on intangible asset and company value. In order to attain the purpose of this study, the stock price is taken as the independent variable and all of intangible asset items reported to a balance sheet except the development expenditures and other development expenditures, and advertisement expenses, ordinary research & development expenditures reported on the income statement are taken as the dependent variables. In the following, I carried out four meaningful results from the analysis. First, research hypothesis 1; Book value of intangible asset reported in balance sheet bears positive relationship with company value shows that development expenditures 1 variable gives positive association in a significant level while a group of \10,000-above-company shows no relationship with company value, the other group of below-\10,000-company supports a consistently significant association. All this considering, we have to keep in mind that lack of prudence may leads to wrong results when we try to analyze. Second, research hypothesis 2; Intangible asset and other intangible asset expenditures reported on the income statement gives positive effect on company value shows that R&D accounts variables give insignificance in a statistical level to all company, including entire group, \10,000-above and below consistently. These results testify that current accounting system is valid. Third, in the case of other intangible asset, it requires further examination of current KAS because statistical results show negatively significant value or insignificant value in a statistical level. That means the more intangible assets, the less company value or nothing. Last, in the case of advertisement expenditure variables of above-\10,000 and entire company shows insignificances in a statistical level consistently while below-\10,000-company shows significant result coherently. We should regard accounting information on the advertisement expenditures of \10,000-below-company with caution. The results of this study provide controversial points whether intangible asset items reported on B/S, excluding development expenditures, should be regarded as asset. To facilitate the utility of accounting information on intangible asset, it seems necessary to regard advertisement expenditures reported on I/S as asset accounts. There are further arguments on the way of dealing with intangible asset under KAS that might be considered.