• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 1996년도 제10회 동계학술발표회 논문집
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• pp.265-295
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• 1996

This paper investigates empirically the relationship between various business portfolio properties (particularly technological properties) and chaebol′s performance using data on the 50 largest chaebols in Korea. In addition to the traditional indexes to measure diversification such as entropy index we calculated inter-industry technological similarity using R&D expenditure data by industry and 1990 Input-output Table in Korea, and obtained chaebol-level technological relatedness and internal transaction proportion from chaebols′business profile, inter-industry technological similarity and 1990 input-output table. We applied factor analysis on 13 business portfolio property indexes and showed that they could be grouped into 3 dimensions, diversification scope, inter-business relatedness and degree of vertical integration. In this paper, using 50 largest chaebols′financial data (1989-1994), we analyzed empirically the effect of business portfolio properties on ROS (Return On Sales) which is conventional index for firm performance and on TFP(Total Factor Productivity) growth which is a pure measure of firm performance. To utilize the advantage of panel data, FEM(Fixed Effect Model) and REM(Random Effect Model) were used. The empirical result shows that the entropy index as a measurement of inter-business relatedness is not significant but technological relatedness index is significant. OLS estimates on pooled data were considerably different from FEM or REM estimates on panel data. By introducing interaction effect among the three variables for business portfolio properties, we obtained three findings. First, only VI (Vertical integration) has a significant positive correlation with ROS. Second, when using TFP growth as an dependent variable, both TR(Technological Relatedness) and f[ are significant and positively related to the deepened variable. Third, the interaction term between TR and VI is significant and negatively affects TFP growth, meaning that TR and VI are substitutes. These results suggest strategic directions on restructuring business portfolio. As VI is increased, chaebols will get more profit. A higher level of either TR or W will increase TFP growth rate. but increase in both TR and VI will have a negative effect on TFP growth. To summarize, certain business portfolio properties such as VI and TR can be considered "resources" themselves since they can affect profit rate and productivity growth. VI and TR have a synergy effect of change in profit rate and productivity growth. VI increases ROS and productivity growth, while TR increases productivity growth representing a technological synergy effect.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
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• pp.1259-1260
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• 2006

Intensive technological research on the Dry-bag CIP equipment was carried out to improve the dimensional accuracy and the productivity. The rubber mold design technology using FEM simulation during pressing was introduced, in order to achieve higher dimensional preciseness, and criteria for the selection of the In-line type or Off-line type, were established based on the powder flowability index proposed by Carr. Based on these research results, high productivity Off-line Dry-bag CIP equipment, which can realize good dimensional accuracy with high productivity, was developed even for non-granulated powders with poor packing density.

• 한국IT서비스학회지
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• 제5권1호
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• pp.1-16
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• 2006

This paper analyzes the technical efficiencies of 40 Korean system integration firms using data envelopment analysis (DEA) and Malmquist productivity indices. Technical efficiencies on average had been decreased over the five year period and the efficiency difference between best practice firms and catch-up firms had been increased during this period, meaning that the industry structure has become matured and the possibilities for catch-up firms to be efficient are not remained so much. The differences in efficiency by the differences in ownership structures are statistically significant. It implies that the efficiencies of group-affiliated firms have come from benefits such as the captive market umbrellas, not from their own management competencies. In addition, the technical efficiency is highly correlated with captive market sales, information productivity, sales per employees, rates of value added, returns on invested capital, and EBITDA.

• Asian Journal of Business Environment
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• 제9권4호
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• pp.5-13
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• 2019

Purpose - This research is aimed to investigate the impact of the Information and Communication Technology (hereinafter ICT) development index and ICT investment on Indonesian economic growth. Research design, data and methodology - The data used consist of ICT development index, government expenditure on ICT sector, and economic growth from 33 provinces in Indonesia from 2012 to 2015. Based on the Networked Readiness Index published by the World Economic Forum (WEF), Indonesia was ranked 80^th among 142 countries in 2012 and had climbed 64^th in 2014. This indicates that the businesses in Indonesia have adopted ICTs to increase productivity and expand their activities. Panel data regression analysis is performed to reveal the change of the impact over time in each of the provinces. Result - The ICT development index and government expenditure for ICT have a positive effect on the economic growth of all provinces, although the impact is different in each of the provinces. There is a digital gap between the provinces, especially the large digital gap occurring with DKI Jakarta. The provinces of Eastern Indonesia such as NTT and Papua are still relatively slow in development of ICT. Conclusions - ICT development index and allocation of local government expenditure for ICT have significant effect on economic growth. ICT development index has a bigger role in increasing economic growth.

• 국제지역연구
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• 제14권2호
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• pp.43-60
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• 2010

본 연구는 비모수적 추정방법인 DEA와 맴퀴스트지수를 통해 한 중 일 3국의 연구개발투자의 효율성과 생산성 변화를 측정하였다. 분석결과는 다음과 같다. 첫째, 분석기간 동안 한국과 일본의 효율성지수는 0.837과 0.834로서 OECD 평균 0.809를 상회하는 효율성을 보인 반면 중국의 경우는 0.420으로 가장 낮은 효율성을 보이고 있다. 둘째, 맴퀴스트지수에 의한 연구개발투자의 생산성 변화를 분석한 결과 일본과 중국은 각각 1.9%와 0.9%의 생산성감소를 보인 반면 한국의 경우 연평균 25%의 생산성증가를 시현하고 있다. 셋째, 생산성 변화를 기술의 변화와 효율성의 변화로 분해한 결과 분석기간 동안 연평균 1.9%의 생산성하락을 나타낸 일본의 경우는 기술진보 1.006, 기술효율성변화 0.975로서 생산성 감소는 기술효율성 하락에 의해 발생하고 있다. 한편 연평균 0.9%의 생산성하락을 보인 중국의 경우는 기술진보와 기술효율성변화가 각각 0.966과 1.026으로 나타나 기술진보보다는 기술효율성이 생산성을 견인하는 전형적인 기술추격형 개도국의 모습을 보이고 있다. 반면 한국의 경우는 효율성의 증가가 18.2% 기술진보가 5.9%로 나타나고 있어 선진국 따라잡기형 효율성증가가 생산성증가를 견인하고 기술진보가 이를 뒷받침하는 선진국형과 개도국형의 중간적인 모습을 보이고 있다.

• The Korean Journal of Ecology
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• 제25권1호
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• pp.29-31
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• 2002

The purpose of this study is to estimate height growth patterns and site index cuties (base index age 50 years) for Japanese red cedar trees(Cryptomeria japonica D. Don) grown in southern regions of Korea. The Chapman-Richards growth function was selected for stand height prediction using on the results of stem analysis data sets. Anamorphic base age invariant site index cuties were presented based on this height prediction equation. The resulting site index prediction equation can provide an indication of the productivity of the site quality based on Japanese red cedar trees plantation ages planted in southern regions of Korea.

• 국제지역연구
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• 제15권3호
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• pp.29-53
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• 2011

본 논문은 거시경제와 산업별 차원에서 수입과 해외직접투자가 EU 신규회원국의 기술이전에 미치는 영향을 분석하였다. 본 논문에서는 해외직접투자 유치국의 해외기술을 받아들일 수 있는 능력과 활용할 수 있는 능력을 측정하기 위해 "효과적인 흡입지수"(Effective Absorption Index)라는 새로운 지수를 만들어 해외직접투자 유치국의 해외기술 활용도를 추정하였다. 1998년-2009년 기간 동안 12개국의 해외투자국과 10개국의 해외투자 유치국의 자료를 이용한 거시경제적 차원의 연구결과를 보면, 국내 연구개발로 인한 EU 신규회원국의 총요소생산성 증가보다는 외국 연구개발(R&D)의 기술전파효과(technical spillovers)가 더 컸던 것으로 분석되었다. 해외직접투자보다 수입이 기술전파효과에 더 중요한 역할을 하는 것으로 드러났다. 쌍무적 기술전파효과의 경우, 독일이 EU의 신흥국에 대한 기술이전에 가장 중요한 역할을 한 것으로 드러났다. 국내 R&D보다 해외 R&D의 기술이전효과가 총요소생산성 증가에 더 많은 기여를 한 것으로 분석되었다. 산업별 차원의 연구를 위해 1998년-2009년 기간에 10개국의 해외투자국과 6개국 해외투자 유치국의 17개 산업별 자료를 이용한 연구결과를 보면, 기술이전의 유형이 국가별로 다르지만 고기술산업에서 기술전파효과가 총요소생산성 증가에 크게 기여하는 것으로 나타났다.

• 통상정보연구
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• 제14권4호
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• pp.89-107
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• 2012

최근 녹색기후기금 (GCF, Green Climate Fund) 사무국의 한국유치를 계기로 기존에 한국이 주도해 설립한 글로벌녹색성장센터 (GGGI)와 녹색기술센터 (GTC)와 더불어 한국은 글로벌 녹색성장을 선도하는 전 세계 녹색성장의 허브로 자리매김하게 되었다. 그러나 이와 같은 선진경제로의 도약을 위해서는 무엇보다 한국경제가 모범적인 녹색성장의 정책 추진이 필수적이라 할 것이다. 이는 최근 이산화탄소배출량의 성장률에 있어 중국에 이어 세계 2위의 불명예스런 한국의 입장에서 더욱 절실히 요구되는 상황이라 하겠다. 특히 이와 같은 녹색성장의 지속적인 경쟁력 우위를 주도하기 위해서는 무엇보다 낙후된 한국의 물류산업에 대한 전면적인 개편이 필요하다고 할 것이다. 이는 운송산업이 전세계 이산화탄소배출량의 21%정도를 차지하는 가장 전략적으로 중요하면서도 취약한 분야이기 때문이다. 이에 따라 물류 및 운송산업에 대해 녹색 생산성을 실증분석하고 이에 기초한 전략적 대안을 제시하는 것은 한국의 통상정책의 가장 중요하고도 의미가 있는 연구라 할 것이다. 이를 위해 본 연구는 기존의 전통적 생산성개념에 환경오염변수를 고려한 방향적 거리함수(directional distance function)와 Malmquist 지수 (ML지수) 가운데에서도 가장 최근에 새롭게 제시된 총체적 ML지수 (Global Malmquist-Luenberger Index, GML) 연구 모형을 기초로 환경 보호와 경제개발을 조화롭게 추진하기 위한 녹색생산성의 실질적인 정책 방향의 패러다임을 제시하고 있다.

• 한국축산시설환경학회지
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• 제20권2호
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• pp.63-68
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• 2014

Environmental heat stress by global warming has a severe effect on the productivity of livestock and, in particular, on that of dairy cattle. Heat stress during high temperature environment directly and indirectly affects milk yield, milk quality and physiological response. This study was conducted to investigate the effects of heat stress on productivity and physiological responses of livestock. Temperature-humidity data logger were established inside the feedlot for measuring real time changes in the feedlot environment. Milk was collected every day for analysing the productivity of dairy cattle. Blood sample and respiration of dairy cattle were collected once in a week for investigating the physiological response factors. Blood component concentration associated with lipolysis metabolism and milk production showed change during tropical night period. Temperature humidity index (THI) of a specific location inside the feedlot showed continuously high levels.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.315-320
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• 2013

The aim of this study is to compare efficiency and Total Factor Productivity(TFP) between Korean and Japanese construction firms in Korea and Japan over the period of 2005-2011. The results of this study are as follows. Efficiency scores of Korean construction firms are 0.797, and Japanese construction firms are 0.921. Second, annual total factor productivity growth of Korean construction firms is 0.5% and technical progress do much for TFP decrease. However Japanese construction firms marked annual increasing of 2.5% of TFP. Third, technical progress contributed in TFP increase of construction firms in Korea. Korean construction firms, however, relatively lagged behind Japanese construction firms in technical progress. Therefore, Korean construction firms need strategies to achieve technical advances including adopting new technology or process innovation to maintain competitiveness, survive, and develop in the future competition with Japan.