如何优化R&D投入强度，避免投入不足或投入过量，是一个现实的科学问题。本文结合内生增长理论及实证分析，测算了2000-2011中国最优R&D投入强度，基于目标，预估了2013-2020年中国最优R&D投入强度。现阶段中国研发投资回报率仍明显持续高于资本投资回报率，R&D投入强度还没有达到最优水平，应加大投入强度；以更好地促进经济增长。
Abstract
How to optimize the R&D investment intensity and avoid the situation of under-investment or over-investment is a practical science problem. In this sense, we combined the endogenous growth theory and empirical analysis to calculate the optimum R&D investment over the past 12 years and the period of 2013 to 2020 in China. The study results show that the return rate of R&D investment was steadily higher than the return rate of invested capital at the present stage. Also, theChinese R&D investment intensity has not reached the optimum level, which means it can be increased continually to stimulate economic growth.
关键词
R&D投入强度 /
内生增长理论
Key words
R&D investment intensity /
endogenous growth theory
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参考文献
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基金
国家软科学研究计划重点项目（2010GXS3K072）；中国科学院政策所A类重大研究任务项目（Y201211Z06）。
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