国家创新效率的结构特征及其收敛性研究——基于OECD国家和中国的经验分析

Research on Structure Feature and Convergence of Innovative Efficiency in OECD Countries and China

将SBM模型与三阶段DEA模型相结合,利用修正的三阶段DEA模型,实证评估了2001-2008年30个OECD国家和中国的创新效率,剔除了外部环境因素和随机冲击对效率测量的影响。研究结果发现:各国环境外生变量和随机冲击对创新SBM效率有显著影响。从结构特征的聚类分析结果来看,中国属于"均衡—中度创新—高潜能型"国家,美国属于"全面均衡—高度创新型"国家。从收敛性分析结果来看,调整后各国的创新SBM效率的差距有不断缩小的趋势。

The paper evaluates innovation SBM efficiency from year 2001 to 2008 in 30 OECD countries and chi- na, using three-stage DEA model and SBM method. The empirical results show that if the exogenous environmental variables and random shocks are controlled, the average innovation SBM efficiency increased from 0.563 to 0.646. From the cluster analysis point of view, China is a ＇balanced-moderate innovation-high potential＇ country. From con- vergence analysis perspective, there is a shrinking trend in innovation efficiency gap among OECD countries.