长三角地区先进制造业集聚的时空分异及影响因素研究

A study on the spatiotemporal differentiation and influencing factors of advanced manufacturing agglomeration in the Yangtze River Delta region

基于2011—2020年长三角三省一市面板数据,运用区位熵、双向固定效应模型等方法,探究长三角地区先进制造业集聚时空分异及影响因素。研究发现:关于时空分异,从空间维度看,集聚水平不平衡,上海为第一层次,江苏为第二层次,浙江和安徽为第三层次;从时间维度看,存在上海和江苏趋稳、浙江上升、安徽波动的总体态势;从细分产业层面看,三省一市均存在有升、有稳、有降的结构特征。关于影响因素,对外开放、科技创新、固定资产投资、市场规模对先进制造业集聚产生正向作用,而金融机构投入、核心企业数量未产生明显的促进作用。

Based on panel data from three provinces and one city in the Yangtze River Delta between 2011 and 2020,this study explores the spatiotemporal differentiation and influencing factors of advanced manufacturing agglomeration in the Yangtze River Delta region by employing methods such as location entropy and two-way fixed effects model.The research findings are as follows.Regarding spatiotemporal differentiation,the level of agglomeration is unbalanced from a spatial perspective,with Shanghai as the first level,Jiangsu the second,and Zhejiang and Anhui the third;from a temporal perspective,there is an overall trend of Shanghai and Jiangsu stabilizing,Zhejiang rising,and Anhui fluctuating;from the perspective of industry segmentation,all three provinces and one city show rising,stable,or falling structural characteristics.Among the influencing factors,opening up,scientific and technological innovation,fixed asset investment and market size have a positive effect on the agglomeration of advanced manufacturing industry,while the investment by financial institutions and the number of core enterprises do not have a significant promotion effect.