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한국 사업서비스의 경제적 파급효과와 변동요인 분해 분석: OECD 회원국과의 비교
조정환,김태황 한국무역연구원 2023 무역연구 Vol.19 No.6
Purpose – This paper aims to investigate the economic effects and structural changes of the business service sector in the Korean economy. Design/Methodology/Approach – We suggest the spillover effects of the business sectors of not only the Korean economy but also of OECD countries using an input-output model. We suggested production-induced spillovers, value-added spillovers, and labor-induced spillover effects in the business service sector to draw policy implications by comparing Korea and OECD countries. Findings – First, by the exogenous specification method for the business services sector, the effects of production inducement increased from 2015 to 2018, but the value-added inducing effects decreased since 2016. The labor-induced effects of the business service sector decreased. Second, the domestic price effects are larger than the import price effects when price rises by 10% in the business service sector. Third, as a result of the inter-industry linkage effects, the business services sector has a characteristic of comparatively larger forward linkage effects than backward linkage effects. Fourth, the growth of the business services sector was found to have driven the domestic final goods demand, final goods import substitution, exports, and technical changes. It was found that the domestic intermediate inputs of business services were replaced by imports. Research Implications – As the linkage between the service and manufacturing industries has been deepening, policy efforts are needed to expand R&D and introduce new technologies to strengthen the business services sector competitiveness.
투자대상국의 특허권 보호 정도가 우리나라 해외직접투자에 미치는 영향
조정환 한국지식재산연구원 2013 지식재산연구 Vol.8 No.4
This study investigates the effects of the patent rights protection inhost countries on outward foreign direct investment from Korea. Theexisting papers which considered the R&D intensity as technologicaladvantages explicitly did not consider the patent right regimes in hostcountries in explaining the motives of outward foreign direct investmentof Korea. To fill this gap, this paper is designed to provide whether ornot there exists the effects of patent rights protection of host countrieson Korean outward foreign direct investment. Using the data of 23 manufacturing sectors from 2007 to 2011 bygravity model it was found that stringent patent regimes have thenegative impacts on Korean outward foreign direct investment. Theresult shows that strong patent rights could increase the operating costsdue to the legal dispute regarding the infringement of patent. However,the paper found that for technology intensive sectors there exists thepositive relationship between the strong patent rights in host countriesand Korean foreign direct investment outflows. This result reveals thatthe stringent patent rights are more likely to contribute to increase theoutflows of Korean foreign direct investment in the high technologymanufacturing sectors. Therefore, we found that the patent protection regimes can beconsidered as one of the determinants of outward foreign directinvestment in manufacturing industries and, especially, technology intensive sectors. 본 논문은 투자대상국의 특허권 보호 정도가 우리나라 해외직접투자에 미치는 영향을 실증분석 하였다. 2007년부터 2011년까지 23개 제조업의 해외직접투자 자료를 이용하여 중력모형을 통해 분석한 결과, 투자대상국의 특허권 보호 정도가 강할수록 우리나라 해외직접투자에 부정적인 영향을 미치는 것으로 나타났다. 즉, 투자대상국의 특허권 보호가 강화될수록 특허권과 관련된 각종 소송비용과 영업비용이 증가하여 우리나라 해외직접투자는 감소할 가능성이 있다는사실을 나타낸다. 그러나 기술집약적인 산업의 경우 투자대상국의 특허권 보호강화는 해외직접투자를 증가시킬 수 있는 것으로 나타났다. 이러한 결과는 투자대상국의 특허권 보호 체계가 제조업 및 기술집약적 산업에 대한 해외직접투자의결정요인으로서 고려될 수 있음을 의미한다.
Effect of load and thickness on the constrained sintering of LTCC substrates
조정환,여동훈,신효순,홍연우,남산 한양대학교 세라믹연구소 2011 Journal of Ceramic Processing Research Vol.12 No.5
It is necessary to develop the technique of high integrity ceramic modules with fine patterning, via hole minimizing, and via hole aligning between the layers. The shrinkage of ceramic bodies during sintering reduces the precision of patterns, via-hole alignments, and the large formatting of the substrates. Therefore the importance of shrinkage control of ceramic substrates during sintering is being increased for fabricating high integration modules using the large and flat multilayer ceramic substrates. In this study, the x-y shrinkage of LTCC substrates was controlled to under 0.2% using alumina sacrificial layers by less-pressure assisted sintering. The laminated sheets of alumina/LTCC/alumina were sintered at 900 oC for 30 minutes in air according to a specified sintering profile. Samples with different thicknesses of LTCC sheet and the alumina layer were sintered and the sintering shrinkage of the x-y and z axis were compared with the radius of edge curvature of them. Also the radii of edge curvature of sintered samples were measured as a function of the loads in the range of zero to 1000 g/cm2.
조정환 고신대학교 자연과학연구소 1999 고신대학교 자연과학연구소 논문집 Vol.9 No.-
A material for supercapacitor was prepared with the conducting polyaniline colloid films showing redox pseudo-capacitive characteristics and was investigated by several electrochemical methods in order to understand its electrochemical properties. The experimental results showed that the polyaniline colloid films exhibited good capacitive properties in HCI solutions.