中国高技术产业技术创新效率动态演进

Dynamic Evolution of Technological Innovation Efficiency in China’s High-tech Industry

基于2013—2017年中国28个省(区、市)高技术产业的面板数据,在以增强型罗素测量模型测度高技术产业技术创新效率的基础上,运用核密度估计和泰尔指数对效率进行系统分析。结果表明:中国高技术产业技术创新活动的综合效率处于较低水平;纯技术效率呈东、中、西和东北阶梯下降,规模效率呈东北、西、中和东阶梯下降;综合效率总体分布密度曲线随时间右移且右拖尾特征明显;区域内部效率差异是造成地区间效率差异的主要原因;纯技术效率和规模效率在统计上显著负相关;样本期间,高技术产业技术创新活动整体规模报酬不佳,每年处于规模报酬递减的地区数超过50%。基于分析结果,给出相应政策建议。

Based on the panel data of high-tech industry in 28 provinces and cities of China from 2013 to 2017,the enhanced Russell measurement model was used to measure the technological innovation efficiency of high-tech industries,and then the nuclear density estimation method and the Theil index were used to make a systematic analysis.The results show that the comprehensive efficiency of China’s high-tech industrial technology innovation activities is at a low level.The pure technical efficiency decreases in the order of eastern,central,western,and northeast,while the scale efficiency decreases in the order of northeast,west,central,and east.The overall distribution density curve of the comprehensive efficiency shifts to the right with time and it has a distinctive right trailing tail and intra-regional difference is the main reason for the large total difference in efficiency.There is a statistically significant negative correlation between the pure technical efficiency and the scale efficiency.During the study period,the overall return to scale of technological innovation activities in high-tech industries was not good,and the number of regions in which the return to scale was decreasing exceeded 50%every year.According to the results,the corresponding policy recommendations are given.