• Environmental and Resource Economics Review
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• v.23 no.1
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• pp.91-132
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• 2014

We investigate the effect of ICT capital on the demands for labor and energy in manufacturing and electricity gas water industries of Korea, US, and UK. Assuming ICT capital, non-ICT capital, labor, electricity, fuel, and material as input factors for manufacturing and ICT capital, non-ICT capital, labor and energy material as input factors for electricity gas water industry, we estimate the Morishima elasticities of substitution. Considering the relative price changes of input factors, ICT capital has substituted labor in manufacturing and electricity water gas industries of the three countries. ICT capital has substituted both electricity and fuel in US and UK manufacturing. Although ICT capital has substituted electricity and fuel each other in Korean manufacturing, ICT capital is unlikely to decrease the demands for electricity and fuel when considering their relative price changes. ICT capital has substituted energy material in electricity gas water industries of the three countries.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.505-515
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• 2017

This study examines the verification of algorithm on resilience leisure programs for the productive aging of the new elderly in Korea. The subjects for this study were 525 new elderly who lived in metropolis, medium-sized cities and farming area. The reliability and validity test of the questionnaire were conducted by using SPSS 20.0 program; the results of tree analysis are as follows; First, The influential factor in the resilience leisure programs is subjective health status, desire for activity, interpersonal exchange and household income. The most influential resilience factor of algorithm is interpersonal relationship, self-regulating and affirmative. The structural algorithm of resilience was that low interpersonal relationship group related to the affirmative and high interpersonal relationship group related to the self-regulating.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.3
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• pp.307-324
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• 2011

The culture industry is viewed as a driving industry in the 21th century. Korea has experienced the rapid growth rate of the cultural industry in terms of sale amounts for the period of 2004-2009. The purposes of this study are to analyze the spatial pattern of the cultural industry and to empirically examine the effect of municipalities' cultural industries on regional economy using SUR model. The major findings are as follows: First, cultural industries are concentrated in the capital region and several metropolitan areas. Secondly, the estimated result of SUR model shows that there is inter-relationship between cultural industry and regional economy. The effect of the cultural industry on GRDP is that the cultural industry increased 1%, GRDP increased by 0.46%. In turn, GRDP increased 1%, cultural industry increased by 0.75%. Thirdly, the elasticity of the cultural industry on GRDP is much higher than that of labor or capital stock, showing that the cultural industry has a more powerful influence on its regional economy. Fourth, the elasticity of the cultural industry on GRDP of Gun is higher than that of shi, indicating that it is rational for Gun to develop strategies to promote competitive power of the cultural Industry for regional economic growth.

• 대학교육
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• s.70
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• pp.76-81
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• 1994

연구의 주체인 교수들이 연구의 효율성과 생산성을 높이기 위해 대학이 연구비를 중앙관리해 준다면, 연구 목적을 위해 연구비가 전액 투입될 수 있으므로 연구의 질을 높일 수 있고 내실을 기할 수 있다. 또한 연구비를 교수가 직접 집행하지 않고 객관적이고 투명성 있는 제도 아래 대학을 통해 집행토록 함으로써 연구비 집행에 대한 대외적 신뢰성과 공신력을 확보할 수 있을 것이다. 연구비관리의 기본정신은 연구책임자가 연구에 전념하도록 행정적으로 도와주고 지원해 주는 데 있으므로 규정과 제도에 원칙은 있으되, 운영에서는 탄력성과 융통성을 인정해 주어야 한다.

• Journal of the Korean Home Economics Association
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• v.32 no.3
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• pp.45-62
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• 1994

지금까지 일반적으로 재화의 소비자 수요에 관한 연구가 써비스의 소비자 수요에 관한 연구보다 강조되어 온 경향이 있으나 급증하는 써비의 분야의 중요성에 비추어 볼 때, 가계의 가계생산 시간절약에 기여할수 있는 써비스 지출에 영향을 미치는 소득, 가계의 경제적.사회적 구조 그리고 여성의 노동시장 참여증가의 효과를 연구하는 것은 매우 필요한 일이라 생각된다. 본연구의 결과는 가계 및 개인을 포함하는 소비자 행동의 이해증진을 통해서 성공적인 마아케팅 전략의 개발을 도모하는 관련 써비스 업계와 소비자 행동과 가계의 소비행태에 관심이 있는 소비자 및 가계 경제학자들에게 유용한 정보를 제공할 것이다. 아울러, 본연구는 수용 함수 및 탄력성의 측정을 통해서 각 써비스의 특성을 규명하는데 유용한 정보를 제공함으로 써비스 관련 공공정책의 수립에 도움을 줄수 있을것이다.

• Environmental and Resource Economics Review
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• v.5 no.1
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• pp.67-86
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• 1995

제지 및 판지산업에서 생산원료로 사용되고 있는 펄프가 폐지와 대체가능하다면 폐지의 의무사용량을 늘이는 정책은 매립지문제 뿐만 아니라 산림자원보호와 공해방지 측면에서 효과적인 방안이 될 수 있다. 일반적으로 미국의 제지 및 판지공장에서 사용되는 펄프는 수직적으로 합병된 펄프공장에서 지급되어 중간재로서의 펄프의 시장가격이 존재하지 않기 때문에 펄프와 폐지의 대체탄력성을 측정하기 위하여 펄프량을 이윤이 극대화되는 수준으로 고정시킨 후, 제약이윤함수(制約利潤函數)를 추정한 결과, 펄프와 폐지는 대체가능한 것으로 나타났다.

• Environmental and Resource Economics Review
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• v.29 no.4
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• pp.499-520
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• 2020

Input ratio of electricity to other production inputs in the Korean manufacturing sector has been higher than for the other OECD countries. In addition, electricity prices in Korea has been relatively lower than the average of OECD countries. Moreover, electricity sector is responsible for most CO2 emissions in Korea as coal and natural gas account 41.9% and 26.8% of electricity production as of 2018. Therefore, it looks inevitable to raise the electricity tariff for the manufacturing sector in Korea, but there is a concern that increase in the electricity tariff might affect small and medium enterprises (SMEs) more than large firms. This study estimates electricity demand's price and output elasticities for large firms and SMEs in steel industry by employing a time varying parameter model (Kalman filter). The analysis shows that changes in output levels regardless of firms' size affect electricity demands more significantly than do changes in electricity prices. Second, large firms have higher variances for both price and output elasticities of electricity demand. Third, large firms have higher price elasticity but lower output elasticity of electricity demand relative to SMEs. Policy implications are suggested in association with how to reduce electricity demands in the energy-intensive industry.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.179-184
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• 2023

Korean society has experienced so-called 'societal crisis' in many aspects of society for a couple of decades and those crises include both natural disasters and tragic catastrophes. Given that, this study purports to investigate, first of all, what is the definition of crisis in general and societal crisis in specific. Next question is what are the major types of societal crises and what are the indicators for those crises. As a result, many areas of societal crisis and corresponding indicators in each area will be introduced. Finally, this study tries to establish a new definition of societal crises based upon a more sociological, more specifically a more phenomenological point of view. For these research purpose, in-depth review for previous research on the subject will be done including psychological and sociological materials. Final outcome of this study will be a new and experimental definition of societal crisis, which will provide the principle base for actual numeric indicators of societal crisis in both macro and micro level.

• Korean Chemical Engineering Research
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• v.43 no.5
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• pp.571-578
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• 2005

We propose a new optimization framework for the reactive scheduling. The proposed rescheduling scheme is specially focused on how to generate rescheduling results when equipment failure occurs. The approach is based on a continuous-time problem representation that takes into account the schedule in progress, the updated information on the batches still to be processed, the present plant state, the deviations in plant parameters and the time data. To update the predictive scheduling, we used right shift rescheduling and total regeneration when equipment failure occurs. And, a practical solution to the rescheduling problem requires satisfaction of two often confliction measures: the efficiency measure that evaluates the satisfaction of a desired objective function value and the stability measure that evaluates the amount of change between the schedules before and after the disruption. In this paper, the efficiency is measured by the makespan of all jobs in the system. And, the stability is measured by the percentage change in makespan and the modified sequence deviation in the predictive scheduling and rescheduling.

• Environmental and Resource Economics Review
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• v.19 no.3
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• pp.633-658
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• 2010

In this paper, we estimate the Translog cost function in Korean manufacturing, using capital (K), labor (L), material (M), electricity (E), fuel (F) data over the period from 1970 to 2005. Especially, this paper investigates the impact of imposing concavity in the estimation of a Translog cost function. Although the value of log-likelihood is somewhat reduced in a concavity imposed function rather than a function which is not, a concavity imposed function satisfies regularity conditions (monotonicity, positivity, concavity) at all data points. We also calculate price elasticities using a concavity imposed Translog cost function. Electricity complements capital so electricity demand increases as capital demand increases. Meanwhile, electricity substitutes labor, fuel, and material. These results show that Korean manufacturing experienced a structural change of increase in electricity demand.