Research on technological innovation efficiency of China's high-tech industry based on network SBM model and DEA window analysis

Abstract

The paper combines network SBM model with DEA window analysis to measure the technological innovation efficiency of China's high-tech industry during 2000-2011. The research indicates that the overall efficiency of technological innovation of the high-tech industry shows a rising trend in the past 10 years, and the outbreak of the financial crisis has a negative impact on the efficiency of technological innovation in the short term. The efficiency values of technological innovation are still not high, and there is structural imbalance between R&D efficiency and conversion efficiency in the long term. The difference of the conversion efficiency among the industry segments shows trend of convergence, but the difference of R&D efficiency expands after the financial crisis. © 2014 Springer-Verlag Berlin Heidelberg..