本土产业集聚、FDI流入与城市创新能力

基于中国2009—2019年284个地级及以上城市面板数据，采用系统GMM方法进行实证检验，探究本土产业集聚模式、FDI流入及二者的交互作用在整体、不同区域与不同城市规模下对于城市创新的影响差异。实证结果表明：FDI流入能够显著地提升城市的创新水平；两种集聚模式中，专业化产业集聚的创新外溢效应更为显著，但呈现抑制性溢出；在与FDI的交互作用中，专业化集聚的影响更大；多样化集聚模式在东部城市能够显著促进创新，而两种集聚模式在中西部城市均不能显著提高城市创新绩效；多样化集聚能够提升小城市的创新能力，而FDI流入和专业化集聚的交互作用对于大城市而言有抑制作用。

Local Industrial Agglomeration, FDI Inflows and Urban Innovation

Based on the panel data of 284 cities at the prefecture level and above in China during 2009 to 2019, this paper uses the systematic GMM method to empirically examine the effects of FDI inflows, local industry agglomeration patterns and their interactions on urban innovation in cities of different regions and sizes. The results show that FDI inflow has a significant positive effect on urban innovation. Compared with diversified industrial agglomeration, specialized industrial agglomeration has a more significant effect on innovation, but it has an inhibiting effect on innovation. In the interaction between FDI inflows and specialized agglomeration, the latter has a greater influence factor. Diversified agglomeration in eastern cities significantly promotes innovation, while specialization and diversification agglomeration in central and western cities do not significantly promote innovation. Diversified agglomeration can promote the innovation capacity of small cities, while the interaction between FDI inflows and specialized agglomeration has an inhibiting effect on large cities.