人口流动与城市创新能力——来自中国副省级及以上城市的证据

Population Mobility and Urban Innovation Capability——Evidence from Chinese Vice-provincial Cities and Municipalities

摘要:

城市创新能力受到多种因素的影响。随着中国城市间“人才争夺战”的展开，人口流动与城市创新能力的关系，引起了各方关注。本文以2006—2018年中国副省级及以上城市为样本，研究人口流动对城市创新能力的影响及作用机制。实证结果表明，人口流动的增加显著推动了城市创新能力的提升。在一系列稳健性检验之后，上述结论依然成立。从作用机制看，人口流动可以通过提高城市人力资本水平和推动产业结构升级两条路径影响城市创新能力。从异质性结果看，人口流动对城市创新能力的促进作用，在人口规模较大的城市更加凸显。本文丰富了人口流动与创新能力关系的相关文献，对城市制定人口流动政策、提升城市创新能力具有一定的参考价值。

Abstract:

Urban innovation capability is affected by many factors. With the development of "War for Talent" among Chinese cities, the relationship between population mobility and urban innovation capability has attracted attention of all parties. This paper uses 2006-2018 Chinese Vice-provincial cities and municipalities as samples to study the impact and mechanism of population mobility on urban innovation capability. The empirical results show that the increase in population mobility has significantly promoted the improvement of urban innovation capability. After a series of robustness tests, the above conclusion still holds. From the perspective of the mechanism of action, population mobility can affect urban innovation capability through improving the level of urban human capital and promoting the upgrading of industrial structure. Judging from the heterogeneous results, the promotion effect of population mobility on urban innovation capability is more prominent in cities with higher population size. This paper enriches the relevant literature on the relationship between population mobility and innovation capability, which has a certain reference value for the city to formulate population mobility policy and enhance urban innovation capability.