摘要
本文运用中国四位数制造产业数据对R&D与生产率之间的关系进行了实证检验。通过估计两种不同的生产函数模型,本文发现R&D对生产率有显著正影响。在控制了市场因素和产权因素的影响后,R&D与生产率之间仍旧表现出显著的正相关关系。本文还发现,R&D对生产率的促进作用也依赖于产业技术机会,高科技产业的R&D产出弹性显著大于非高科技产业的R&D产出弹性。
The paper investigates the relationship between R＆D and productivity by using the data on the four-digital manufacturing industries in China. We find that R＆D has significantly positive effects on productivity through estimating two different kinds of production function model, and that the positive relationship between R＆D and productivity is still remarkably existent when market factors and ownership factors are being controlled in the production function model. We also find that the positive effects of R＆D on productivity depend on technical opportunities of industries, and that the elasticity of output with respect to R＆D in high-tech industries is higher than that in non-high-tech industries. The paper gives empirical proof of appraising correctly R＆D roles in economic growth.
出处
《经济研究》
CSSCI
北大核心
2006年第11期60-71,共12页
Economic Research Journal
关键词
R&D
生产率
实证研究
R＆D
Productivity
Empirical Analysis
