Analysis Of The Impact Of Population Outflow On Economic Growth In Northeast China

Science and technology are the primary productive forces,and there is no other force in the world that can play such a greater role in promoting the development of productive forces.With the rapid development of China’s economy,in recent years,China’s economy has shifted from the stage of high-speed development to the stage of "new normal".In this stage,in order to cultivate new economic growth points,it is necessary to improve innovation ability.Therefore,scientific and technological innovation is the core of enterprise development,is the lifeline of enterprise survival and development,it is not only an important source of competitive advantage of an enterprise,but also an important guarantee of sustainable development of a city.As the main body of innovation,the relationship between population and innovation is inseparable.A review of domestic and foreign studies shows that the flow of population has a certain impact on technological innovation,and in the past decade,the population in Northeast China has been greatly reduced.Research shows that the seventh national census in 2020 has 11.01 million fewer people than the sixth national census in2010.At the same time,the GDP growth rate of Liaoning,Jilin and Heilongjiang provinces in the past ten years is much lower than the national average growth rate,and the per capita GDP has dropped significantly to below the national average level.Is the economic decline in northeast China related to population mobility,and will population mobility affect technological innovation?Therefore,based on the panel data of 34 cities（including sub-provincial cities and prefecture-level cities）in northeast China from 2010 to 2019,this paper firstly conducts a descriptive analysis of technological innovation and population mobility in each province of China on the basis of combing relevant domestic and foreign studies.It is found that the technological innovation ability of northeast China is low,the aging of population is increasing,the birth rate and natural growth rate are decreasing,and the permanent population and registered population in northeast China have decreased greatly in the past ten years.Secondly,multi-classification logistic regression was used to analyze the main causes of population outflow and the choice of destination by using the dynamic monitoring data of floating population collected by the National Health Commission in2018.It was found that the economic factors mainly including wage income were the main factors of population outflow from northeast China,and the choice of destination was mainly from eastern China.Then USES the China statistical yearbook data,various provinces,the urban statistical yearbook statistical yearbook data and various provinces and cities for national economic and social development statistical bulletin data,using the time fixed effects space doberman model to explore the influence on economic growth in northeast China,population outflow finally came to the conclusion that to dismantle barriers to migration and promote steady economic growth,put forward the corresponding policy recommendations.