【摘要】 引导FDI合理地迁移、推进城市群空间优化，对我国未来区域发展具有战略性意义。城市联系强度是分析城市群发展的重要视角，本文利用长三角城市群2005—2019年41个地级及以上城市的面板数据，建立空间面板联立方程模型，采用广义空间三阶段最小二乘法（GS3SLS），分析讨论FDI区位迁移和城市联系强度的交互作用和空间溢出效应。研究发现：FDI区位迁移和城市联系强度之间存在双向促进作用机制，FDI的迁入促进了城市联系强度上升，但是城市联系强度上升对FDI迁入的促进作用更强；FDI迁入和城市联系强度对自身具有正向的空间溢出效应，而二者的空间交互溢出效应为负；城市群扩容强化了FDI迁入对城市联系强度的正向作用，但是城市联系强度上升对于吸引FDI迁入的促进作用逐渐减弱；不同区域的城市联系强度在吸引FDI迁入方面具有异质性，核心区域具有更加明显的区位优势，但是FDI迁入对外围区域的城市联系强度的提升作用高于核心区域。稳健性检验支持研究结论。本文为理解FDI和城市群的关系提供了新的角度，为合理利用外资提供了决策参考。更多还原

【Abstract】 Guiding the rational migration of FDI and promoting the spatial optimization of urban agglomerations is of strategic significance to our country’s future regional development. The urban correlation strength is an important perspective for analyzing the development of urban agglomeration. Based on the panel data of 41 prefecture-level cities in Yangtze River Delta Urban Agglomerations from 2005 to 2019, the spatial panel simultaneous-equations model is established with the generalized spatial three-stage least squares(GS3SLS) method to empirically analyse the interaction and its spatial spillover effect between FDI and the urban spatial correlation strength. This paper finds that FDI and the development of the urban agglomeration have two-way promotion mechanism: FDI magnified the influence of the city and promotes urban agglomeration development, but urban agglomeration development has stronger effect on FDI; FDI and the development of the urban agglomeration have positive spatial spillover effect on themselves, while the spatial interaction spillover effect on both is negative. The positive effect of FDI on the development of urban agglomerations has been strengthened after the expansion of the urban agglomeration, but the spatial interaction spillover effect on the other and the development of the urban agglomeration on attracting FDI is gradually weakened at the same time. The urban correlation strength of different regions is asymmetric in attracting FDI migration, with core regions having more obvious location advantages, but FDI has a higher effect on the urban correlation strength in peripheral regions than that in the core. Robustness tests also support the findings. This paper provides a new perspective for understanding the relationship between FDI and urban agglomerations, and provides a reference for rational utilization of foreign investment for decision making.更多还原