기업특허출원자료를 활용한 기술혁신요인 및 기술파급효과 분석

초록

Using a firm-level panel data of Korea for 1990-2000, this study investigates the determinants of technology innovation approximated by the number of firm-level patents registered in Korea: firm-characteristics and spillover effects. By using the Panel GMM estimation, the results are as follows. 1) The level of technology (patents) accumulated until last period contributed into the firm innovation of current period. 2) Innovation is positively and significantly correlated with the level of R&D intensity, capital-labor ratio, export share, and the share of labor training expenses to sales while it is negatively and significantly correlated with leverage ratio. 3) Innovation and concentration ratio show inverted-U relationship. 4) Domestic spillovers are mixed. The innovation of other firms in the same industry plays a negative role in individual firm's innovation while that of domestic public institutes plays a positive role. 5) Foreign spillovers depend on the source of patent registration. The patents registered by US and EU tend to decrease the innovation of domestic firms while those by Japanese companies contributed to increasing domestic patents.

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