长三角城市群创新溢出效应评价及其时空演进

Evaluation and Spatial-temporal Evolution of Innovation Spillover Effect in the Yangtze River Delta Urban Agglomerations

摘要:

城市创新溢出对促进区域创新发展具有重要推动作用。基于2016—2020年长三角城市群面板数据，从创新禀赋、溢出禀赋出发，以创新投入、创新产出、溢出环境、溢出广度为二级指标，构建长三角城市群创新溢出效应评价指标体系，采用熵权TOPSIS法测算指标权重、评价各城市创新溢出水平，再分析其时空演变格局。结果表明：创新投入、溢出广度对城市创新溢出具有重要影响；上海、南京、苏州、杭州、合肥的创新溢出效应显著，滁州、安庆、铜陵、宣城、池州、盐城的创新溢出水平偏低；长三角城市群总体创新溢出水平增强，呈现出东南强、西北弱、多中心的分布特征。最后，就激发城市创新溢出效益、促进长三角区域协同创新提出对策。

Abstract:

Urban innovation spillover plays an important role in promoting regional innovation development. Based on the panel data of the Yangtze River Delta urban agglomerations from 2016 to 2020, starting from innovation endowment and spillover endowment, and taking innovation input, innovation output, spillover environment and spillover breadth as secondary indexes, an evaluation index system of innovation spillover effect of the Yangtze River Delta urban agglomerations is constructed. The entropy weight TOPSIS method was used to measure the index weight, evaluate the innovation spillover level of each city, and analyze the spatio-temporal evolution pattern. The results show that innovation input and spillover breadth have important effects on urban innovation spillover. The spillover effect of innovation is significant in Shanghai, Nanjing, Suzhou, Hangzhou and Hefei, but low in Chuzhou, Anqing, Tongling, Xuancheng, Chizhou and Yancheng. The overall innovation spillover level ?of the Yangtze River Delta urban agglomerations is enhanced, showing the distribution characteristics of strong southeast, weak northwest, and multi-center. Finally, it puts forward some countermeasures to stimulate spillover benefits of urban innovation and promote collaborative innovation in Yangtze River Delta region.