Research On The Impact Of Population Aging On China’s Economic Growth ——Based On The Perspective Of R＆D Investment

China has been developing continuously since 1949.With the rapid development of all aspects of society,the protection of people’s health has been comprehensively improved,the average life expectancy of the population has also been greatly increased,and the mortality rate of population has also decreased.Meanwhile,the size of the elderly population also increases.In 2000,China had gone into an aging society,and the aging process was developing rapidly.Population aging is closely related to economic growth.At present,China is in a period of rapid population aging.Therefore,it is important to study the relationship between population aging and economic growth.This paper used China’s provincial data from 2000 to 2019 to research the effect of population aging on economic growth.First,this paper analyzed the overall influence of population aging on China’s economic.Second,based on the perspective of R＆D investment,this paper used the mediation effect model to analyze the mechanism of population aging on economic growth.After that,based on the perspective of the speed of population aging,this paper analyzed the impact of rapid population aging on economic growth.Finally,in the robustness test,this paper uses two methods.The first method is to replace the core explanatory variables,and the second method is to build a dynamic panel model.When analyzing the mechanism by which population aging affects economic growth,the existing literature rarely considers the role of R＆D investment.Therefore,this paper will analyze the mediating effect of R＆D investment in the process of population aging affecting economic growth.In addition,when studying the effect of population aging on economic,the existing literature only considers the degree of population aging,ignoring the speed of population aging.Different rates of population aging may have different effects on economic growth.The results of the research are as follows: first,the effect of population aging on China’s economic growth has a significant inhibitory effect on the whole;second,population aging can hinder China’s economic growth by the curbing R＆D investment;finally,research shows that the rapid development of population aging will have a more adverse impact on economic growth.Therefore,under the background of the increasingly serious population aging,we should actively try to alleviate the negative impact of population aging,and objectively understand the phenomenon of population aging.The recommendations made in this paper are as follows: first,improve the investment and distribution of R＆D funds;second,make full use of the human capital of the elderly;third,vigorously develop the aging market.