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Double-Efficiency Research on R&D Innovation of Industrial Sector in China by Perspecting from Value Chain
LIU Guipeng, HAN Xianfeng, SONG Wenfei
Abstract: This paper constructs a theoretical framework of R&D innovation activities in the value chain perspective, using stochastic frontier model based on Cobb-Douglas production function. We have an empirical study on industrial sector R&D innovation's double-efficiency and affecting factors in China between 2004 and 2009. The study shows: the R&D innovation's conversion efficiency is greater than transformation efficiency, but the transformation efficiency increased, while the conversion efficiency decreased; there is big difference in terms of the R&D innovation's double-efficiency among different industrial sectors in China, and the difference in transformation efficiency continues to expand, while the one in conversion efficiency is shrinking; enterprise size, market competition and FDI promote the R&D innovation's double-efficiency; the state-owned property's inhibition on the R&D innovation is mainly reflected in the conversion part, while R&D investment's promotion on the R&D innovation is only reflected in the transformation part; the introduction of foreign technology could enhance the conversion efficiency, but it slightly blocks the transformation efficiency; China's industrial sectors are weak in digestion, however, the innovation activity has not shown such unfavorable phase as retrograde diffusion of FDI.
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