摘要
本文使用动态网络DEA—SBM(DNSBM)模型,对我国新能源汽车企业2011—2020年的价值链创新效率进行评价。基于此,构建多层次Tobit模型,探索协同开放度对价值链效率的影响。结果表明:(1)中国新能源汽车企业创新效率处于较低的水平;(2)协同广度对企业创新效率没有显著的影响,而协同深度对企业创新效率的影响是积极的;(3)协同广度对研发和营销效率的影响是负向的,但对制造效率的影响是正向的;(4)协同深度对制造和营销效率的影响是正向的,但对研发效率没有显著的影响。
By using the Dynamic Network DEA-SBM(DNSBM)model,this study evaluates the value chain innovation efficiency of China′s new energy vehicle enterprises from 2011 to 2020.Based on the above,the Multi-level Tobit model is constructed to explore the influences of collaborative openness on value chain efficiency.The results indicate:(1)China′s new energy vehicle enterprise innovation efficiency remained at a relatively low level;(2)Collaborative breadth has no significant impact on enterprise innovation efficiency,while collaborative depth exerts a positive influence;(3)Collaborative breadth negatively influences R&D and marketing efficiency but positively influences manufacturing efficiency;(4)Collaborative depth positively influences manufacturing and marketing efficiency but has no significant effect on R&D efficiency.
作者
倪良福
乔敏敏
NI Liangfu;QIAO Minmin(Department of Economics,Shanxi Institute of Energy,Taiyuan 030600,China)
出处
《渤海大学学报(哲学社会科学版)》
2026年第1期54-64,共11页
Journal of Bohai University:Philosophy & Social Science Edition
关键词
协同开放度
创新效率
新能源汽车企业
价值链
collaborative openness
innovation efficiency
new energy vehicle enterprises
value chain
