The Industrial Heterogeneity of R&D Impacts on Total Factor Productivity Based on the Empirical Test of Chinese Manufacturing Industry

RD is an important way to increase the total factor productivity because it can promote technical progress and innovation.Industries vary with RD investment efficiency,technical spreading and absorbing capacity.These differences have resulted in the impact of RD on total factor productivity.This paper studies the impact of industrial RD heterogeneity on total factor productivity,and provides theoretical supports for government policy in making and adjusting RD investment.First,based on the nonparametric method of data envelopment analysis( DEA) Malmquist TFP indexes of Chinese manufacturing industries from 2000 to 2009 are measured and decomposed.Total factor productivity index( TFP),technical efficiency index( EC)and technical progress index( TC) of 15 industries are obtained and analyzed in temporal manner and at industrial level.Second,RD spillover effects through inter-industry are measured based on I-O method.RD spillover effects through international trade and FDI are separately tested by using LP method and the degree of local production of foreign direct invested firms.Based on the basic form of Cobb-Douglas production function,an econometric model used to measure the impact of RD on TFP in open economy is constructed.According to the unit root test and cointegration test of panel data,all the variables' sequences are at0 level and have a strict cointegrated relation to assure the reliability and accuracy of the results.Last,manufacturing industries are separated into light textile industry,resource processing industry and mechanical electron industry according to factor intensity,production characteristics and end products.Empirical tests are taken on the panel data from2000 to 2009,and the results show that RD has an apparent industrial heterogeneity impact on TFP.In resource processing industry and mechanical electron industry,RD investment and RD spillover effects of inter-industry promote the increase of total factor productivity.There is marginal RD spillover effect through international trade and FDI in the light textile industry.RD investment doesn't increase productivity.RD spillover effects have a positive effect on total factor productivity through inter-industry,international trade and FDI.