• The Korean Journal of Applied Statistics
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• v.28 no.4
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• pp.807-826
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• 2015

Generational contracts are specified into public pensions based on generational solidarity. The Korean National Pension has been reformed with a focus on generational equity with a narrow meaning related to contribution rate and benefit level. As a result, the Korean National Pension has only emphasized generational equity and not contributed to generational solidarity. We investigate changes in the content of the generational contract and propose to reconstruct generational contract to contribute to solidarity with a more comprehensive perspective. A new social contract by reformed pension system should not concentrate on narrowed generational equity. It should be reconstructed in the direction of enhancing efficacy and the stability of generational solidarity with an emphasis on social sustainability. Investment into the next generation would be one of many policy measures to decrease conflicts around intergenerational redistribution and improve the financial stability of the public pension by creating population structure and labor market changes.

• Journal of the Korean housing association
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• v.21 no.2
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• pp.111-122
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• 2010

A regional planning is central to addressing various urban problems surrounding the detached housing areas of a metropolitan city of Daegu. The problems are related with decrease in population, socio-economic issues of redevelopment and a sustainable society, the various housing market and housing rights, and a need to explore a desirable alternative to enhance the civil needs when renovating General Residential Zone. The aim of this paper is to look into a possible method of residents led environmental improvement by surveying the residents' consciousness in low-density residential areas. The residents wish to have a residential parking permit program to be set up in place and financial support for old independent houses and finally for lampposts and CCTV to be installed by the administrative assistants. The 75.7 per cent residents who inhabit in the low-density residential areas wish that a residential environmental improvement plan is required and the population at 65.9 per cent could consider a need for the citizens to participate in the residential improvement. 70.3 per cent answered that a consultative group of inhabitants is needed to be built, while 40.5 per cent expressed that they would like to participate in that group in case the group is set up. The possibility of productive residential improvement via resident participation in the low-density residential areas is high, as long as small various environmental improvement projects are created, a resident-consultative group formed, and finally a residential improvement plan is addressed in a comprehensive way.

• International Commerce and Information Review
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• v.14 no.3
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• pp.209-227
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• 2012

Northeast Asia where is an epicenter of the global financial crisis's conquest is traditional imbalanced region of oil production and consumption. In recent years, the region has been suffered by the shortage of oil storage and transportation facilities due to surging oil trading and necessity in strategic reserves. Therefore, since independent petroleum logistics with the storage facilities and oil trading hub is required to form efficient oil market in this region. In this study, we analyzed the efficiency of refinery facilities by country that is of importance in being a logistics hub in Northeast Asia by employing non-static and dynamic efficiency analysis, which are a part of DEA(Data Envelopment Analysis) and then policy implications have been drawn. The result illustrates Korea's is the highest country in terms of efficiency of oil refining facilities in Northeast Asia. It implies that Korea has strong position to be the oil hub in Northeast Asia.

• Journal of the Korean Data and Information Science Society
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• v.28 no.5
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• pp.1109-1123
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• 2017

This paper examines there is any differences among determinants of cash holdings and marginal value of cash depending on the life-cycle of firm. To accomplish these objective, we collect financial and market data of KRX listing firms for a period of 2001-2013. We present evidence of significant effect of life-cycle on the cash holdings determinants and marginal value of cash. Specially, the effect of investment opportunity related variable are varies through life-cycle. The results also suggest that marginal values of cash in the introduction stage and exit stage is higher than those in other stages. Overall, this means that the motive of cash holdings in Korean firms is weak. and shareholders place different value on a firm's cash holdings depending on the life-cycle.

• Korea Journal of Hospital Management
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• v.21 no.1
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• pp.32-42
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• 2016

This study is conducted to estimate economic ripple effects of subsidiary services of hospitals. Using the Input/Output Analysis, this study analyzes production inducement effect, added value inducement effect, and labor inducement effect. Also, it assesses potential economic effects of the subsidiary services of which the scope is expanded as the government's proposed in 2014. Data regarding hospital subsidiary services and economic effects are obtained from the hospitals' financial statements on the National Tax Services and the Bank of Korea. The major results of this study are summarized as follows; subsidiary service profits of hospitals are 466 billion won and rent profits of hospitals are 152 billion won. Of these, the rate of subsidiary service profits in tertiary hospitals is about 66% of total subsidiary service profits. Producement inducement effect of subsidiary services of hospitals is higher than that of total industry, service industry and medical service industry. Added value inducement effect of subsidiary services of hospitals is higher than that of total industry, manufacturing industry, service industry and medical service industry. Job position inducement effect of subsidiary service in hospitals is higher than that of total industry, service industry and medical service industry. Also, employment inducement effect of subsidiary service in hospitals is higher than that of total industry and medical service industry. The results may suggest that subsidiary services revenue in medical institutions contribute to improving operating profits. Facing with intense market competition and pressures to control health care costs, hospitals may need to determine whether subsidiary services help boost their profitability and improve customer satisfaction.

• Information Systems Review
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• v.10 no.1
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• pp.47-69
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• 2008

Korea is one of the most advanced countries in the world in terms of information technologies (IT) applications and usages. However, its web browser market is so dominated by one company, and its web cross browsing according to international guidelines isquestioned. In this research, we have empirically examined web cross browsing of web sites of major companies and pubic institutions in Korea through different web browsers which conform international guidelines. In general, web cross browsing through Firefox was lower by 19% than that through Internet Explorer. Web cross browsing of public institutions was better than that of companies, and financial institutions were the worst. Typical cross browsing problems found with Firefox were inability to pay online, failure to play multimedia contents, and frame display errors. Causes of web cross browsing problems and suggestions for improving cross browsing are discussed.

• Communications for Statistical Applications and Methods
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• v.15 no.6
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• pp.925-937
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• 2008

In this study, we considered the clustering analysis for stock return traded in the stock market. Most of financial time-series data, for instance, stock price and exchange rate have conditional heterogeneous variability depending on time, and, hence, are not properly applied to the autoregressive moving-average(ARMA) model with assumption of constant variance. Moreover, the variability is font and center for stock investors as well as academic researchers. So, this paper focuses on the generalized autoregressive conditional heteroscedastic(GARCH) model which is known as a solution for capturing the conditional variance(or volatility). We define the metrics for similarity of unconditional volatility and for homogeneity of model structure, and, then, evaluate the performances of the metrics. In real application, we do clustering analysis in terms of volatility and structure with stock return of the 11 Korean companies measured for the latest three years.

• Korean Journal of Construction Engineering and Management
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• v.6 no.3 s.25
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• pp.72-80
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• 2005

The number of apartments has been increased, and it is time to activate the remodeling or reconstruction. Recently remodeling has been preferred to reconstruction, because reconstruction might cause many problems. At this point of time, remodeling could save resources, preserve environment, and expand the construction market places. However, most research for remodeling is aimed to improve the financial value, and structural effects being caused by floor plan modification has not been done yet quantitatively. Remodeling naturally brings to floor plan modification, and it can cause serious problems of structural side. So we made apartments an object of study, then analyzed stress variation of structural elements according to the removal of shear wall, supposing the floor plan modification. For this purpose, we selected a sample of universal apartment floor plan and extracted floor plan modification factors. Then we applied the factors to sample floor plan and organized the results of stress variation of structural elements. As results, walls are most harmful when the independent walls are removed, and in case of slabs, it is most critical when continuous walls are removed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38B no.8
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• pp.654-662
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• 2013

Android applications can be easily decompiled owing to their structural characteristics, in which applications are developed using Java and are self-signed so that applications modified in this way can be repackaged. It will be crucial that this inherent vulnerability may be used to an increasing number of Android-based financial service applications, including banking applications. Thus, code obfuscation techniques are used as one of solutions to protect applications against their forgery. Currently, many of applications distributed on Android market are using ProGuard as an obfuscation tool. However, ProGuard takes care of only the renaming obfuscation, and using this method, the original opcodes remain unchanged. In this paper, we thoroughly analyze obfuscation mechanisms applied in ProGuard, investigate its limitations, and give some direction about its improvement.

• The Journal of the Korea Contents Association
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• v.14 no.1
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• pp.40-47
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• 2014

Animation in Taiwan has been profoundly influenced by the production of labor intensity for American and Japanese in the early days of its development. This phenomenon of the labor intensity reached peak in the 1980s. Information Bureau of Taiwan began to establish a system of supportive funding for its animation industry in the 1990s. During this period, the animation industry in Taiwan gave special emphasis to the theme of the local culture and to the creative works of the animation. By the 2010s, the elements of Chinese culture were introduced in the animation production in Taiwan. Through cross-national cooperation in production with other advanced countries, the Taiwan-made animation was successfully expended to the international market. However, the animation industry in Taiwan is facing the following problematical challenges: Firstly, the Taiwan government gives special attention to the financial support of animation industry rather than training university students to become professional experts in animation production. Secondly, there is no professional higher institution established to train specialized professional animation film-makers. Thirdly, Due to the lack of the cultural inspiration and the original mind, the form of its creative animated production is primarily imitated from other advanced countries. And fourthly, despite the fact that there is a cooperation and exchange programs between Taiwan and other foreign animation industries.