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다변량 오차수정모형을 이용한 에너지와 국민소득간의 인과관계 분석
오완근 ( Wan Keun Oh ),이기훈 ( Ki Hoon Lee ) 한국경제학회 2003 경제학연구 Vol.51 No.1
We investigated Granger causal relationship between energy and GDP by two multivariate vector error correction models: one demand side model of energy, GDP, and real energy price and the other production side model of capital, labor, energy and GDP. Empirical results for Korea over the period 1981:1-1999:4 suggest a long run bidirectional causal relationship between energy and GDP in both models. The source of causation in the long run is found to be the ECT`s in both directions. We, however, cannot find causality between energy and GDP in the short run.
민완기 ( Wan Kee Min ),오완근 ( Wan Keun Oh ) 서강대학교 지암남덕우경제연구원 2011 시장경제연구 Vol.40 No.2
As the assessment of public expenditure outcomes has been expanded today, the assessment of national R&D projects is also being conducted, most of whom analyzes their economic effects only. Specifically, national R&D projects tend to focus on the analysis of sales, profit, production-induced amount of relevant industries mainly. In this situation, this study intends to explore an analysis of immeasurable and implicit non-economic effects in system IC industry infrastructure formation, such as the gain of fundamental technology of next generation, quality improvement of members in society, etc. Interviews with CEO of relevant companies are facilitated and four attributes are identified, including the gain of fundamental technology of next generation, advancement of IT industry, training of expertise, start-up of new enterprises. Data is analyzed by using MAUT which is a representative analysis method of non-market value assessment. The findings of this study show that the value of non-economic effects in system IC industry infrastructure formation from year 1997 to year 2006 is evaluated as to reach approximately 210 Billion Won to 489 Billion Won. This amount can be considered 0.56 to 1.3 times more than actual expenditures of 130 Billion Won during the same period.
민완기(Min Wan-Kee),오완근(Oh Wan-Keun) 한국기술혁신학회 2006 기술혁신학회지 Vol.9 No.4
본 연구는 기술추격론 및 산업혁신체제론에 의거해서 국내 IT SoC산업의 기술추격을 검토했다. 국내 IT SoC산업은 많은 중소ㆍ벤처 팹리스업체들의 출현에 의한 다양성 창조 및 일부 팹리스업체의 급성장에 따른 선택의 과정을 거쳐 급속한 기술추격 과정을 밟아왔다. 이 과정에서 국내 팹리스업체들은 틈새시장을 중심으로 한 경로개척형 기술추격을 수행해 왔다. 현재 국내 IT SoC산업은 많은 문제점을 가지고 있지만, 산업혁신체제의 공진화를 달성하려면 무엇보다도 기업간 협력네트워크 구축이 선결과제이다. 기업간 협력네트워크는 시장의 힘에 의해 자동적으로 해결되기 어려운 시스템실패의 한 형태이기 때문에 이를 해결하기 위한 정부정책이 요망된다. This paper aims at examining technological catching-up in the Korean IT SoC industry using the theories of technological catching-up and sectoral system of innovation. The Korean IT SoC industry has accomplished rapid technological catching-up by the process of variety generation and selection. In the process, Korean fabless ventures have pursued the technological path-creative pattern in niche markets. But the cooperative networks among various firms are prerequisite for the coevolution of sectoral innovation system.
백웅기 ( Ehung Gi Baek ),오완근 ( Wan Keun Oh ) 한국경제학회 2002 경제학연구 Vol.50 No.4
Korea`s high unemployment rate has returned to the pre-financial crisis level of 1997. However, Korean workers still have the longest working hours among OECD countries. Labor unions and the government are pursuing a reduction in legal working hours to improve quality of life. We investigated the short-run production effects of the reduction in legal working hours on the Korean economy by industry. A two-stage approach was applied. The main result showed that the short-run production effect on the Korean economy was negative in all industries. The manufacturing industry was most severely affected by the reduction in legal working hours.
에너지 소비와 경제성장간의 인과관게 재분석 : 디비지아 에너지 지수와 CO2 배출량의 적용
이기동(KI DONG LEE),오완근(WAN KEUN OH ) 한국경제학회 2001 경제학연구 Vol.49 No.1
개별 에너지원을 열량기준으로 단순 합계한 기존의 최종 에너지 소비량, 에너지원의 비용비중을 반영하여 계산한 에너지 디비지아 지수와, 에너지원의 탄소배출계수를 반영하여 작성된 CO₂ 배출량 통계를 사용하여 실질 GDP와의 그랜져 인과 관계를 각각 검정하였다. 에너지 디비지아 지수를 산출할 때 개별 에너지 소비량이 영인 시기가 존재하는 문제는 Sato-Vartia지수를 써서 해결하였고, 비에너지 용도로 사용된 에너지의 소비량을 제외하였다. 오차수정모형을 이용한 그랜져 인과 검정결과 최종 에너지 소비, 디비지아 에너지 지수, CO₂ 배출량 모두가 실질 GDP를 그랜져 인과하는 것으로 나타났다. 특히 대부분 단기 인과관계보다는 장기 인과관계를 보였다. 반대로 실질 GDP가 에너지 소비를 인과하는가 여부는 최종에너지 소비의 경우에만 인과하는 것으로 나타났다. 여기서도 장기 관계만 존재하는 것으로 파악되었다.
환경친화기업지정제도와 기업경영성과: 상위 5대 기업별,산업별 분석
김금수 ( Geum Soo Kim ),오완근 ( Wan Keun Oh ) 한국환경정책학회 2007 환경정책 Vol.15 No.2
This paper analyzes the effect of environment-friendly company (EFC) designation system on companies` managerial performance. The Business performance of top 5 EFC-designated companies in each industry are reviewed before and after designation. Also the Business performance of designated and non-designated companies in each industry are compared in terms of profitability, growth and stability. With caveats, it is argued that the designation system has had a positive effect on profitability, a moderate positive effect on growth and a negative effect on financial stability.