The Empirical Study on the Contribution Rate of China's R&D Expenditures to GDP Growth

More and more people concern about the R&D on the importance of national economic development. Based on econometric analysis method, this paper establishes the correlation analysis model of contribution rate of China's R&D expenditures to GDP Growth. From three aspects, that is, the sub-annual data regions, sub-regional historical data and general data analysis R&D expenditures, this paper analyses the correlation between R&D expenditures and GDP. By positive analysis, we obtain the following conclusions: China R&D expenses between 1999-2008 were significantly associated with GDP and R&D contribution to the GDP growth rate showed a small range of fluctuation and stabilized. And there is striking difference on the contribution rate of GDP growth between China's 31 provinces (municipalities). Finally, this paper puts forward some corresponding suggestions.