公共服务、城市规模与人才区位——基于新空间经济学理论的分析

将城市规模引入新空间经济学理论模型，探讨公共服务、城市规模对人才区位的影响机制，并且利用2011-2017年CMDS微观数据匹配244个城市数据进行实证检验。结果显示：①城市规模对公共服务影响人才区位具有非线性门槛效应，只有当城市规模满足一定门槛条件时，增加公共服务供给才能显著吸引人才流入；②全国层面的实证分析有效验证了理论预期；③分区域看，东部与中西部地区门槛条件具有异质性，东部地区人才流动呈现竞争效应，中西部地区呈现集聚效应；④分城市等级看，大城市与中小城市门槛条件差异明显，满足门槛条件时，加大中小城市公共服务供给，吸引人才效果会更显著。最后提出基于城市规模和区域异质性的公共服务供给对策。

Public Services,City Size and Talent Location: based on New Space Economics Theory

In this paper,city size is introduced into the new spatial economics theoretical model to discuss the mechanism of public service and city size on talent location, and the data of CMDS 2011-2017 and 244 cities data from 2010-2016 are used to test empirically.It finds out that:Firstly,city size has a nonlinear threshold effect on the public service, and only when city size meets a certain threshold condition, the supply of public services can significantly attract the inflow of talents; Secondly,the empirical analyses at the national level effectively verify the theoretical expectations;Thirdly,by region, the threshold conditions of eastern regions and central and western regions are heterogeneous, and talent flow in eastern cities presents competitive effect, talent flow in central and western cities presents agglomeration effect;Finnally,from the point of view of urban hierarchy, the threshold conditions of large cities and small and medium cities are obviously different, increasing the supply of public services has obviously affect on attracting talents in small and medium cities.At last, this paper puts forward the countermeasures of public service supply based on city size and regional heterogeneity.