Innovation Efficiency Measurements and Influencing Factors of Green and Low-Carbon Enterprises:Based on Three-stage DEA and Tobit Panel Model
Based on the three-stage DEA model,this paper measures the innovation efficiency of China's green and low-carbon listed companies from 2016 to 2020 and utilizes the Tobit model to further examine the influencing factors of innova-tion efficiency in terms of the enterprises'characteristics.The results show that in a homogeneous environment,the innova-tion efficiency of green low-carbon enterprises is at a low level,which is mainly restricted by scale efficiency;pure techni-cal efficiency has scale heterogeneity,and the pure technical efficiency of small and medium-sized enterprises is higher than that of large enterprises;enterprise-scale,labor quality,and government subsidy intensity significantly contribute to enterprise innovation efficiency,in which enterprise-scale and government subsidy intensity mainly affect innovation effi-ciency through scale efficiency;the structure of R&D personnel is negatively correlated with enterprise innovation efficiency.
green and low-carboninnovation efficiencythree-stage DEA
NETL
NSTL
万方数据
