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전자산업에서 R&D와 수출과의 관계에 대한 실증분석: 중견기업과 중소기업의 비교
심기은 한국무역연구원 2019 貿易 硏究 Vol.15 No.6
Purpose - The purpose of this study is to investigates mainly the relationship between R&D investment decision and export participation decision in the Korean electronics industry. Design/methodology/approach - This study uses panel data of companies in the Korean electronics industry during the period from 2012 to 2017, which are listed on the KOSPI and KOSDAQ. The regression techniques used in this paper is the probit model and bivariate probit model. Findings - Empirical results show that the impact of past R&D investment decisions on both future R&D investment and export decisions is larger in SMEs than in mid-sized firms. By contrast, regarding the firm’s productivity, its impact on R&D investment and export decisions turns out to be stronger in mid-sized firms than in SMEs. Research implications or Originality - In korea, most existing empirical studies investigating the relationship between R&D and Exports have focused on firms in the manufacturing sector. Moreover, in doing so, those papers divide firms into two groups: SMEs(small and medium-sized enterprises) and large firms. This criteria for dividing firms into two groups by size depends on whether firm’s number of employees is larger or less than 300. Therefore, mid-sized firms of which the number of employees is between 100 and 300 are naturally included in the large-firm-category in previous studies. Unlike existing studies, this study divides firms into SMEs and mid-sized firms.
전자산업과 의약산업에서 기업의 연구개발투자 및 매출이 수출에 미치는 영향 분석
심기은 한국무역통상학회 2017 무역통상학회지 Vol.17 No.6
This study investigates the effects of firms’ R&D investment and sales on exports in the Korean electronics and pharmaceutical industries. For estimation, we use the data of companies in the electronics and pharmaceutical industries during the period 2008 to 2015, which are listed on the KOSPI and KOSDAQ. The estimation results show that R&D investment determinations in one year prior, two years prior, and three years prior have a positive relationship with exports in the electronics industry while that only in three years prior period has a positive effect on exports in the pharmaceutical industry. Moreover, companies’ sales in the electronics industry have a positive effect on exports while those in the pharmaceutical industry have a negative effect on exports.
환경오염산업에서 유럽과 한국 간 환경투자의 상대적 차이가 교역에 미치는 영향
심기은,정경화 한국산업경제학회 2010 산업경제연구 Vol.23 No.5
본 연구는 환경오염산업에서 우리나라와 교역 상대국 간 환경투자의 차이가 국내 생산 제품 소비대비 유럽으로부터의 수입에 미치는 영향을 실증분석을 통해 분석한다. 본 분석에서는 구조적 중력모형(structural gravity model)을 통해 1998년부터 2006년까지 우리나라의 유럽지역으로부터 9년간의 수입 패널 데이터를 사용하여 실증분석을 시행하였다. 5개의 환경오염산업 분석 시 OLS방법에 의해 유효한 결과가 도출되었다. 결과에 의하면 수입국인 우리나라 대비 수출국의 환경투자액이 1% 증가하면 국내 생산 제품 소비 대비 수입이 0.35% 감소한다는 것을 보여주고 있다. 또한 기타 산업에 비해 환경오염산업에서 수출국과 수입국인 우리나라의 환경투자액의 상대적 크기가 우리나라의 국내 소비 대비 수입에 미치는 영향이 더 큰 것으로 나타났다. 이러한 결과는 오염피난처가설을 뒷받침한다. In the context of pollution haven hypothesis, this study investigates the impact of relative environmental investment of exporter and importer(Korea) on Korea’s imports in dirty industries. This study employs a structural gravity model and uses data which cover 9 years from 1998 to 2006. The econometric technique used in this paper is ordinray least squares, least squares dummy variable with industry and year fixed effects and GMM. The estimation result shows that one percent increase of the relative environmental investment of exporter and importer(Korea) leads to 0.35% decrease in the ratio of Korean imports to Korea’s domestic demand in dirty industries. This result also supports pollution haven hypothesis.
The Effect of Tariff-tax Reforms on Revenue and Welfare in a Complementary Goods Market
심기은,정경화 한국산업경제학회 2013 산업경제연구 Vol.26 No.5
This paper examines the revenue and welfare effects of tariff-tax reforms that consist of the following: 1) combining a cut in import duties with a point-for-point increase in domestic consumption taxes, and 2) leaving consumer prices of imported goods unchanged after the tariff-tax reform, focusing on a complementary goods market. In this study, we find the following three results. Firstly, under both Cournot and Bertrand competition, the reforms are welfare-reducing for any degree of complementarity between domestic and imported goods. Secondly, when the initial consumption taxes are high enough, both reforms are revenue-diminishing in a complementary goods market, whereas identical reforms are revenue-enhancing for a low degree of product differentiation in a substitutable goods market. Thirdly, when domestic and imported goods are close to perfect complements, the reforms are the most welfare-reducing and are highly likely to reduce government revenue even when initial consumption tax rates are moderate. In a complementary goods market, the tariff-tax reforms reduce both revenue and welfare although the primary purpose of the tax reforms is to make up shortfall from tariff cuts. Thus, the tariff-tax reform policies are ineffective in a complementary goods market under the following conditions: 1) when the initial consumption taxes are sufficiently high, and 2) when domestic and imported goods are close to perfect complements and the initial consumption taxes are higher than a certain moderate level.
전자산업에서 한국과 일본의 R&D가 OECD국가로의 수출에 미치는 영향 분석
심기은 한국무역통상학회 2018 무역통상학회지 Vol.18 No.6
Most existing empirical studies have been conducted based on the ad-hoc model to investigate the relationship between exports and R&D in the Korean electronics industry, whereas this study does estimation based on the theory-based structural model. By using the panel data which cover 26 OECD countries during the period from 2008 to 2015, this study investigates the impact of R&D on exports in Korean and Japanese electronics industries. I divide the electronics sector into two sub-sectors, which are ISIC Code Rev.4 26 and 27, and do the estimation of two sectors separately. Estimation results show that first, R&D investment has a positive relationship with exports only in the industry 26 of Korea, and second, Japanese relative production in both sectors is negatively related to its exports.