关键词: 投入产出法, R&D投入, 乘数效应, 产业关联产出增值, input-output, R&D expenditure, multiplier effect, associated output value

Abstract: How to measure the comprehensive effects of R&D expenditure has become an important problem in recent years. Concentrating on input-output method and multiplier analysis, we have measured the comprehensive effects of R&D expenditure from four perspectives: associated output value, reward multiplier value, national income multiplier value and the number of new job. With the R&D expenditure used as an example, we have achieved a series of results. First, comprehensive effects are larger for some industries, such as the Manufacture of Communication Equipment, Computer and Other Electronic Equipment, Chemical Industry, Industry of Metals Smelting and Pressing, Manufacture of Transportation Equipment, Manufacture of General and Special Equipment. Second, comprehensive effects of R&D expenditure is lower for some industries, such as Public Management and Social Organization, Post Industry, Construction Industry, Industry of Education, Water Conservancy, Environment and Public Facilities Management. Finally, we should attach greater importance to the comprehensive effects of R&D expenditure. In order to improve the effects, governments should optimize the orientation of R&D expenditure and adjust the structure of R&D expenditure. The research method can provide reference for the similar study and the conclusions can provide empirical reference for R&D investment decision.