摘要
本文利用40家主要新能源汽车企业2015~2019年的面板数据,采用多元线性回归模型研究了政策补贴、研发投入与新能源企业创新绩效之间的互相影响。研究结果表明,政策补贴对企业研发投入有正向影响,且随着产业链从上、中、下游效果不断增加。对于创新绩效来说,上游企业研发投入的效果随时间不断减弱,企业融资的效果随时间加强。中、下游企业的研发投入效果随时间加强,政策补贴效果变化不大,在政策补贴逐年下降阶段,研发投入的增加有利于提高企业的创新绩效。更具针对性的补贴政策,可以推动资源的合理配置,有利于新能源汽车产业的良性发展。
This paper uses panel data of 40 major new energy automobile enterprises from 2015 to 2019,a multiple linear regression model is used to study the interaction among policy subsidies,R&D investment and innovation performance of new energy enterprises.The results show that the policy subsidy has a positive effect on the R&D investment,and the effect increases with the industry chain from the upper,middle to lower reaches.For innovation performance,the effect of upstream enterprise R&D invest⁃ment is weakening with time,and the effect of enterprise financing is strengthening with time.The effect of R&D input of middle and downstream enterprises is strengthened with time,and the effect of policy subsidy is little changed.The increase of R&D in⁃vestment is beneficial to improving the innovation performance of enterprises.More targeted subsidy policy,can promote the rational allocation of resources,is conducive to the healthy development of new energy automobile industry.
作者
韩纪琴
余雨奇
Han Jiqin;Yu Yuqi(College of Economics and Management,Nanjing Agricultural University,Nanjing 210095,China)
出处
《工业技术经济》
北大核心
2021年第8期40-46,共7页
Journal of Industrial Technological Economics
关键词
政策补贴
研发投入
创新绩效
新能源汽车产业
多元线性回归模型
产业生态链
policy subsidies
R&D investment
innovation performance
new energy vehicle industry
multiple linear re⁃gression model
industrial ecological chain
