中国城市群创新非均衡性

摘要

Through calculating the weighted relative Theil index,this paper comparably analyzes the development of spatial inequality of innovation in Jing-Jin Ji,Yangtze River Delta and Pearl River Delta by using the city-level data from 2007 to 2014.The results show as follows:innovation tends to distribute unequally across cities within Chinese metropolitan areas,with a more pronounced unequal distribution for R&D personnel and patent application activities;specifically,the innovation seems more strongly spatially concentrated in Jing J in-Ji than Yangtze River Delta and Pearl River Delta,and its regional inequality of innovation output became more deteriorated over the research period;instead,a more equal distribution of R&D expense and innovation output in Yangtze River Delta and Pearl River Delta can be observed;however,the spatial inequality of R&D personnel caused by the "siphon effect" of core city,is still the difficulty for all three metropolitan areas.%利用2007 2014年中国城市层面的数据,通过计算加权相对泰尔指数,对京津冀、长三角和珠三角三大城市群的创新非均衡特征进行了对比分析.结果显示:中国城市群创新活动存在地区差异,且主要体现在创新人力资本和以专利申请量表征的创新产出方面;京津冀城市群内部的创新差异较长三角城市群和珠三角城市群更为明显,且近年来其创新产出极化现象持续加剧;长三角城市群和珠三角城市群的R&D经费投入差异和创新产出差异明显缩小;中心城市的“虹吸效应”导致的创新人才的区域差距是三大城市群亟待解决的共同难题.