摘要
选取2010—2019年中国沪深A股上市公司为样本,结合广义倾向得分匹配法(GPS)考察企业研发投入与创新绩效的关系。研究显示,研发投入与创新绩效具有先促进、后抑制、再促进的"N"型关系特征;研发投入的创新促进效应随时间推移逐渐得以释放。异质性研究表明,企业人力资本水平、资产规模、所属行业和所有权性质对研发投入与创新绩效的关系及最适区间有差异化影响。
This paper selects a sample of Chinese A-share listed companies in Shanghai and Shenzhen from 2010-2019.On this basis,the paper examines the relationship between R&D investment and innovation performance by combining the generalised propensity score matching(GPS)method.The results show that R&D investment has an’N’shaped effect on innovation performance by promoting,then inhibiting,and eventually promoting;the innovationpromoting effect of R&D investment is gradually released over time.The heterogeneity study shows that human capital level,asset size,industry and nature of ownership have different effects on the relationship between R&D investment and innovation performance,and the optimal interval.
作者
杜雯秦
郭淑娟
Du Wenqin;Guo Shujuan(College of Economics and Management,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《科技管理研究》
CSSCI
北大核心
2021年第23期124-132,共9页
Science and Technology Management Research
基金
教育部人文社会科学研究规划基金“人力资本集聚与经济结构调整的适配性研究”(15YJA840014)
山西省哲学社会科学规划课题“山西省R&D投入对制造业优化升级作用机理研究”(2019B051)
山西省统战理论政策研究立项课题“山西省民营经济高质量发展的统战工作机制研究”(2021SXTZ018)。
