国家创新型城市试点政策对要素流动及溢出效应的影响研究

Research on the Impact of National Innovative City Pilot Policy on Factor Flow and Spillover

本文综合运用双重差分模型与空间计量模型对国家创新型城市试点政策能否有效促进城市乃至区域整体的要素自由流动这一问题展开研究,发现国家创新型城市试点政策能够显著促进城市的要素流动;试点政策对行政级别偏低的城市产生的推动作用更为显著,试点政策与内陆港口的要素流动具备一致性;试点政策的要素驱动作用具备空间溢出效应,特别是以地理距离为路径形成要素流动的扩散作用。鉴于此,政府应进一步扩展创新型城市的覆盖范围,推动形成以创新型城市为中心的城市间经济互联结构,实现区域内城市的高效集聚与平衡发展。

The study comprehensively uses the double difference model and the spatial econometric model to estimate whether the national innovative city pilot policy can effectively promote the free flow of elements in the city and even the whole region.The study finds:Firstly,the national innovation city pilot policy can significantly promote the urban factor flow.Secondly,the pilot policy has a more significant effect on cities with lower administrative levels,and the pilot policy is consistent with the flow of factors in inland ports.Thirdly,the factor-driven role of the pilot policy has a spatial spillover effect,especially the diffusion of the flow of factors by using geographic distance as the path.In view of this,the government should further expand the coverage of innovative cities,promote the inter-city economic interconnection structure centered on innovative cities,and realize the efficient agglomeration and balanced development of cities in the region.