摘要
为揭示长三角城市突破性创新的空间演化规律及其收敛特征,以26座城市的专利数据为基础,采用CD指数测度突破性创新水平,结合Dagum基尼系数与核密度估计分析其空间差异与分布动态,并进一步检验其绝对与条件β收敛性。研究发现:长三角城市突破性创新水平持续提升,但空间差异显著,行政层级差异是主要来源;上海的首位度趋于弱化,高等级城市的集聚效应有所分散。核密度曲线呈现单峰右移、主峰高度波动上升及末期左拖尾特征,表明突破性创新存在极化现象,但内部离散程度下降,部分城市相对滞后。收敛检验表明,突破性创新水平存在显著的绝对与条件β收敛。研究结论为优化区域创新资源配置、推动高质量创新协调发展提供了实证依据。
To reveal the spatiotemporal pattern and convergence characteristics of breakthrough innovation in Yangtze River Delta cities,based on patent data from 26 cities,the CD index is utilized to measure the level of breakthrough innovation,followed by the application of Dagum Gini coefficient and kernel density estimation to examine spatial disparities and distribution dynamics,further testing for absolute and conditionalβconvergence.The results indicate as follows:The level of breakthrough innovation in Yangtze River Delta cities continues to rise,but spatial differences are significant,with administrative level differences being the main source;Shanghai's primacy tends to weaken,and the agglomeration effect of higher-level cities has somewhat dispersed.The kernel density curve shows a single peak shifting to the right,fluctuations in the main peak height,and a left tail in the late period,indicating polarization in breakthrough innovation,although internal dispersion decreases and some cities are relatively lagging.Convergence tests indicate significant absolute and conditionalβconvergence in breakthrough innovation levels.The findings provide empirical evidence for optimizing regional innovation resource allocation and promoting coordinated,highquality innovation development.
作者
张鹏
温雪
于伟
Zhang Peng;Wen Xue;Yu Wei(School of Management Science and Engineering,University of Jinan,Jinan 250002,China;School of Business Administration,Shandong University of Finance and Economics,Jinan 250014,China)
出处
《科技管理研究》
2025年第21期81-89,共9页
Science and Technology Management Research
基金
山东省自然科学基金项目“破坏性创新导向下城市群后义务教育一体化的内在逻辑与优化策略研究”(ZR2022MG016)
国家社会科学基金项目“区域公用品牌建设推进生态产品价值实现的机制研究”(24BGL183)。
关键词
突破性创新
时空格局
收敛性
长三角
breakthrough innovation
spatiotemporal pattern
convergence
Yangtze river delta
