长三角地区本地、区内和区外合作创新对城市经济增长的影响研究

A Study on Impact of Local,Inter-regional and Extra-regional Collaborative Innovation on Urban Economic Growth in Yangtze River Delta Region

新经济全球化形势下,国家创新系统是中国经济发展的中坚力量。从合作创新的视角出发,借助2007和2017年长三角地区合作发明授权专利数据和城市数据,探究本地、区内和区外合作创新的空间结构演变以及三者对城市经济增长的作用机理。结果表明:(1)本地和区内合作创新一直是长三角地区合作创新的主要来源;区内合作创新网络从以上海、杭州、南京为核心,向以南京、上海、杭州、苏州为核心演变;区外合作创新网络从以上海、杭州、西安、北京为核心,向以上海、南京、合肥、苏州、北京、深圳、佛山为核心演变。(2)在区域创新网络发展的初期阶段(2007年),区内合作创新强度和创新网络位置有助于经济增长;在区域创新网络较为密集的阶段(2017年),本地、区内和区外合作创新强度以及区外创新网络位置有助于城市经济增长,但区内创新网络位置的作用不显著;由此认为“全球生产网络流派”和“关系经济地理学派”争论主要是因为忽视了区域创新网络发展阶段的影响。(3)在区域创新网络较为密集的阶段,本地、区内和区外合作创新的城市经济增长效应通过了稳健性检验。研究结论对长三角地区高质量一体化发展具有一定的参考价值。

Under the situation of new economic globalization,the national innovation system is the backbone of China’s economic development.From the perspective of collaborative innovation,this paper explores the spatial structure of local,inter-regional and extra-regional collaborative innovation and the mechanism of the role of the three on urban economic growth with the help of 2007 and 2017 collaborative invention granted patent data and city data in the Yangtze River Delta region.The results are as follows.(1) Local and inter-regional cooperative innovation has been the main source of cooperative innovation in the Yangtze River Delta region.The inter-regional collaborative innovation network has evolved from a core of Shanghai,Hangzhou and Nanjing to a core of Nanjing,Shanghai,Hangzhou and Suzhou.The extra-regional collaborative innovation network has evolved from a core of Shanghai,Hangzhou,Xi’an and Beijing to a core of Shanghai,Nanjing,Hefei,Suzhou,Beijing,Shenzhen and Foshan.(2) In the early stage of inter-regional innovation network development(2007),inter-regional collaborative innovation intensity and innovation network location contributed to economic growth.In the stage of more intensive inter-regional innovation network(2017),local,inter-regional and extra-regional collaborative innovation intensity and extra-regional innovation network location contributed to urban economic growth,but the role of inter-regional innovation network location was not significant.Thus,the Global Production Network School and Relational Economic Geography School argue mainly because they ignore the influence of the development stage of regional innovation networks.(3) The urban economic growth effects of local,inter-regional and extra-regional collaborative innovation pass the robustness test at the stage of more intensive inter-regional innovation networks.The findings of the study have some reference value for the high-quality integrated development of the Yangtze River Delta region.