Geographical Pattern of Innovation in the Three Major Coastal Urban Agglomerations and its Driving Factors
Based on the patent application data of 48 prefecture-level and above cities in the three major coastal urban agglomerations of Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta from 2004 to 2022,this paper conducts an exploratory spatial analysis of the innovation distribution pattern and its driving factors of the three major coastal urban agglomerations.The results show that:The relative level of innovation(the number of patent applications per capita)from high to low is:Pearl River Delta,Yangtze River Delta and Beijing-Tianjin-Hebei.In terms of spatial distribution of innovation,the Yangtze River Delta has the highest degree of equilibrium,showing a trend of multi-center development.The innovation gap of the cities in the Pearl River Delta is small,showing a"gradient"multi-center pattern;The"Beijing-Tianjin"fault polarization phenomenon in the Beijing-Tianjin-Hebei region has improved slightly,but it is still prominent.In terms of driving factors,the"social filter"condition plays a positive role in promoting the three major coastal urban agglomerations,and there is regional heterogeneity in R&D input and its spillover effect.In addition,urban economic attributes also affect the innovative development of urban agglomerations to varying degrees.
City ClusterGeographic Distribution of InnovationSocial FilterSpillover Effect