| After the 19 th National Congress of the Communist Party of China,China has entered a new stage of development,and people’s attention has been paid to ecological and environmental issues.Urban environmental pollution not only affects the work and life of residents,but also damages their health and leads to population outflow.With the construction of ecological civilization,many cities have begun to attach importance to environmental governance and environmental optimization,thereby improving environmental quality and attracting population inflows.Therefore,this paper will focus on whether the quality of the ecological environment affects the flow of urban population in my country,and promote the orderly flow of population by preventing and controlling environmental pollution problems and improving the level of environmental optimization.This paper uses the panel data of 271 prefecture-level cities and above from 2006 to 2016,and divides the ecological environment quality into environmental pollution and environmental optimization to verify the impact on my country’s urban population flow and its transmission mechanism.A sub-sample study was carried out on administrative-level cities,and three methods were used to test the robustness of data,including shrinking the tail of the data,adding environmental regulation control variables,and using differential GMM instead.At the same time,a dynamic panel model was constructed to solve the endogeneity problem.The study found that environmental pollution has a negative effect on population flow and promotes population outflow;environmental optimization has a positive effect on population flow and promotes population inflow.In the study of the transmission mechanism,it is found that the ecological environment mainly affects the urban population flow through industrial agglomeration.The impact of ecological environment on my country’s urban population flow varies between regions.In the central and western regions,the impact of environmental pollution and environmental optimization on population flow is more obvious than in the eastern region;the impact of ecological environment on my country’s urban population flow varies in different regions.There are differences between administrative-level cities.In general prefecture-level cities,the impact of environmental pollution and environmental optimization on population flow is more obvious than in high-level cities.Finally,this paper obtains policy suggestions for optimizing the ecological environment and promoting the orderly flow of population: improve the talent introduction policy,innovate the reform of the household registration system,do a good job in the management of floating population services,speed up the optimization and upgrading of the industrial structure,reduce the random discharge of pollutants,and promote green environmental protection innovation.The innovation of the article is to study the impact on population flow from the perspective of ecological environment,and analyze the transmission path of the impact through the way of industrial agglomeration.Use dynamic panel models as well as a variety of empirical methods to eliminate model endogeneity. |