• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.28 no.6
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• pp.85-90
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• 2014

This paper shows a reasonable demand power, that was made by the systematic and statistical way considering actual conditions, such as investigated transformer capacity and peak power for the last 6 years of subway substation customer as to AMR. In this dissertation, it is necessary to analyze the key features and general trend from the investigated data. It made an analysis of the feature parameters, such as average, standard deviation, median, maximum, minimum and thus it was carried by the linear and nonlinear regression analysis. And we studied on the application of a BESS. Analysis showed that the revulsion of capital is about 3 years and 4 months.

• East Asian Economic Review
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• v.17 no.1
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• pp.81-100
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• 2013

This paper investigates the new link between the export-creating effects of Korea's tied aid and the export-diverting effects coming from China's export expansion, which have been rarely explored by the existing studies. A panel data consisting of 98-104 aid recipients of Korea through the period of 1995-2009 shows that the net export-creating effects are weaker at the export destinations where the export competition between Korea and China is fierce, while they are stronger at the export markets where it is not so severe. These findings applies to consumption goods rather than capital and intermediate goods.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2001.01a
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• pp.325-329
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• 2001

This paper tests existence of precautionary saving motive under health uncertainty, using household level panel data from Korea. For this purpose, this paper considers a dynamic health capital model with health uncertainty and derives testable equations for changes in consumption and medical expenditures. Under this framework, households who face future health uncertainty will exhibit precautionary behavior by depressing consumption or increasing investment in health. To test this hypothesis, the paper uses the conditional variance of health as the direct measure of health uncertainty, obtained by estimating a multinomial logit model. Empirical results using the Korean Household Panel Study (KHPS, 1993 - 1997) suggest that Korean elderly households follow the precautionary behavior to insure against future health risk.

• Asian Journal of Business Environment
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• v.8 no.2
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• pp.23-32
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• 2018

Purpose - This study investigated the relationship among cultural disposition (Chemyeon, Noonchi, Woozzul), media use, and attitude toward luxury goods consumption. Research design, data, and methodology - We analyzed online survey data for 300 Korean Women between 20 and 39 years of age who lived in Seoul, capital of South Korea. We used multiple regression analysis to examine the relative influence of cultural orientation on cognition of luxury goods, Sobel test. to determine mediating effect, and a two-way analysis of variance in IBM SPSS 23.0. Results - The finding suggests that cultural disposition (Chemyeon, Noonchi, conspicuous Woozzul) correlated significantly with perceived self-identity, attitude toward luxury goods. The effects of Chemyeon, Noonchi, and selfish Woozzul on the attitude toward luxury goods was fully mediated by perceived self-identity. However, association between conspicuous Woozzul and attitude toward luxury goods was partially mediated by perceived self-identity. Regarding media effects, the results indicate that there were interaction effects between selfish Woozzul and amount of time spent on TV on attitude toward luxury goods, as well as between selfish Woozzul and amount of time spent on Internet. Conclusions - These findings suggest that luxury goods consumption of Korean young women is consumer behavior that reflects individual cultural disposition and media use.

• Korean Chemical Engineering Research
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• v.50 no.2
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• pp.270-276
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• 2012

In this study, thermally coupled distillation system and conventional two-column process were investigated for extractive distillation. The two processes were simulated and optimized using Aspen plus. Objective function for the optimization was energy consumption and optimization results to reduce energy consumption were used to get guidelines for design and operation for the two extractive distillation processes. Comparison of these two processes showed that thermally coupled distillation system provided better energy efficiency and lower capital cost than conventional distillation system.

• International Area Studies Review
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• v.13 no.3
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• pp.51-71
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• 2009

We pursue empirically influential determinants of risk-sharing across various groups in the United States. We consider all the possible combinations out of the eight BEA economic regions and relate the risk-sharing measure for each group to sectoral composition difference under the control of the state-level macroeconomic and financial characteristics. Our results show that more active risk-sharing via cross-ownership market is observed in groups exhibiting more different sectoral composition. The evidence implies that, given other economic and financial conditions equal, economic union tends to share more consumption risk among its members that are more heterogeneous in their sectoral composition. These days, many countries aim to form FTA and other forms of economic integration. We suggest that they should pay attention to sectoral composition for member countries to minimizes income shock in the integrated economy.

• Journal of Korea Technology Innovation Society
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• v.10 no.1
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• pp.47-72
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• 2007

Ideas do not become exhausted, and there are no diminishing returns in the creation of knowledge. Nonetheless, growth ultimately ceases in this simplest model of endogeneous innovation. The reasons are similar to those that are discussed in the context of the neoclassical model of capital accumulation. Even if the resource cost of creating new goods does not rise, the economic return to invention may decline as the number of available products increases. When the rate of return to R&D falls to the level of the discount rate, private agents cease to be willing to defer consumption in order to invest in product development. But, if we treat knowledge capital as a public capital considering of its non-appropriable benefits, economic growth can be sustained in the economy. Romer(1986) has pointed out that growth might be sustainable if the accumulation of knowledge is not subject to long-run diminishing returns. Actually Romer assumed diminishing returns in the production of private knowledge from available resources, but increasing returns in the production of output from labor and total (public and private) knowledge. His condition for the sustainability of long-run growth amounts to an assumption that the diminishing returns in the former activity do not outweigh the increasing returns in the latter. The Johansen(1988) cointegration test method is used for finding long-run equilibrium relationship between R&D input and the product innovation. Test results indicate the existence of cointegrating equation between each pair of regression variables including dependent variable in the knowledge production function. And, the signs of cointegrating vectors are well accord to the prediction of sustainable growth. In the empirical analysis, from all cases of the form for the knowledge production function, we could not reject the null hypothesis that R&D spillover effect is significant($H_{0}:\;{\gamma}=1$). In summary, we showed that considering goodness of fit of regression model, we can see that the empirical evidence is strongly in favor of the character of knowledge as the public knowledge capital. So, we can expect that by product innovation, economic growth can be sustained in the Korean economy.

• Asia-Pacific Journal of Business
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• v.11 no.3
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• pp.199-215
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• 2020

Purpose - This article tries to test if the conditional consumption capital asset pricing model (CCAPM) with bank credit for household as a conditional variable can explain the cross-sectional variation of stock returns in Korea. The performance of conditional CCAPM is compared to that of multifactor asset pricing models based on Arbitrage Pricing Theory. Design/methodology/approach - This paper extends the simple CCAPM to the conditional version of CCAPM by using bank credit for household as conditioning information. By employing KOSPI and KOSDAQ stocks as test assets from the second quarter of 2003 to the first quarter of 2018, this paper estimates risk premiums of conditional CCAPM and a variety of multifactor linear models such as Fama-French three and five-factor models. The significance of risk factors and the adjusted coefficient of determination are the basis for the comparison in models' performances. Findings - First, the paper finds that conditional CCAPM with bank credit performs as well as the multifactor linear models from Arbitrage Pricing theory on 25 test assets sorted by size and book-to-market. When using long-term consumption growth, the conditional CCAPM explains the cross-sectional variation of stock returns far better than multifactor models. Not only that, although the performances of multifactor models decrease on 75 test assets, conditional CCAPM's performance is well maintained. Research implications or Originality - This paper proposes bank credit for household as a conditional variable for CCAPM. This enables CCAPM, one of the most famous economic asset pricing models, to conform with the empirical data. In light of this, we can now explain the cross-sectional variation of stock returns from an economic perspective: Asset's riskiness is determined by its correlation with consumption growth conditional on bank credit for household.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.40-50
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• 2016

This study employs model of susceptibility to imported media to examine Korean drama exposure, evaluation and viewing intention among viewers living in foreign cultural background. Analyzing data collected from 176 female viewers in the U.S., it founds knowledge about Korea and general drama exposure give direct effect on the future viewing intention. Korean drama exposure directly affects drama evaluation and viewing intention. Korean network, however, has no significant effect on the dependent variables. Result of the present study shows that cultural capital of foreign viewers has effects on Korean drama consumption. Another result that behavior of general drama consumption has contributed to Korean drama consumption gives meaningful implication for the policy of Korean television export.

• Journal of the Korea Society of Computer and Information
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• v.26 no.1
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• pp.217-222
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• 2021

Recently, trust in online transactions and corporate trust are most important at the corporate level as social overhead capital in commercial transactions using digital devices such as online, mobile, and SNS platforms. Therefore, this study used data from the Korea Consumer Agency's consumer policy indicators to identify the impact of digital consumption trust and corporate responsibility trust on the satisfaction of information and communication products and services. According to the analysis, trust in digital consumption conditions and responsibility of companies have a positive impact on satisfaction of information and communication devices and satisfaction of information and communication services. In addition, it was found that trust in corporate responsibility has a greater impact on satisfaction of information and communication devices and satisfaction of information and communication services than trust in digital consumption conditions. Theoretical and practical implications for these findings and suggestions for future research were presented.