| Since our economy entered the "new normal" period of gradual slowdown,while comprehensively improving quality and efficiency,the problem of regional economic development differences of "strong east and weak west,fast south and slow north" has become more and more prominent.The gap problem of "fast south and slow north" is actually trying to narrow the gap between the east,the middle and west,the southern region relies on the advantages of geographical environment,human resources and other resource endowments to achieve a sustained upward trend of regional economic growth,while the northern region gradually slows down due to its own insufficient kinetic energy conversion,thereby widening the regional economic development gap between the north and the south.On the new journey of China-style modernization,in the face of the new development situation and environment,we must persist in deepening reform,expanding opening up,promoting scientific and technological innovation and industrial structure upgrading in the process of development,narrowing the gap between the North and the South,promoting balanced regional economic development,and achieving highquality development.Taking technological innovation as the starting point,this study uses relevant research methods to deeply analyze the relevant mechanism of the impact of technological innovation on North-South economic growth through combing the existing literature.On this basis,combined with the current situation of economic development of the north and south,an index system including technological innovation and economic growth level was constructed,and the panel model was established by using the provincial panel data of the provinces in the north and south from 2013 to2020,and the impact of technological innovation on the economic growth of the north and south of China was empirically analyzed.Through the analysis of the current situation,it is found that the overall level of technological innovation and economic growth in the southern region is higher than that in the northern region from 2013 to 2020:First,in terms of innovation investment,the R&D human resource investment in the north and south of China is generally on the rise,the rising rate is faster in the southern region,the gap between the north and the south is gradually increasing,and the east-west gap between the north and the south is gradually obvious;Second,in terms of innovation output,the output of three types of patent applications,university science and technology output,R&D topics and the operating income of high-tech enterprises in the north and south of China are still higher than those in the north;Third,from the perspective of technological innovation environment,the overall gap between the north and south regions in infrastructure such as universities and public libraries is not large,but the number of R&D institutions and enterprises in the south is significantly higher than that in the north,and the overall enterprise R&D environment and regional technological innovation environment in the south are better than those in the north.Fourth,from the perspective of economic growth,the difference between the north and the south has gradually intensified after 2013,and the per capita GDP of the southern provinces has basically increased year by year,but the per capita GDP of most northern provinces is a fluctuating growth,and some provinces have even experienced negative growth.Through empirical research,it is found that technological innovation has a significant positive impact on economic growth,and there are structural differences between the north and the south: First,the improvement of technological innovation level has a significant positive impact on economic growth.The input,output and environment of technological innovation are continuously improved,and the effective innovation environment can further improve the level of regional economic growth by improving the level of regional human resources,infrastructure construction density and openness,improving the level of regional technological innovation;Second,the level of opening up,capital investment level,human resources level and industrial agglomeration level and other factors have a significant positive impact on regional economic growth,but the positive impact on the southern region is generally higher than that in the northern region,indicating that the development of hightech industrial enterprises can be promoted by increasing investment in technological innovation,continuing to increase the construction of Internet and other related infrastructure,expanding opening up to the outside world to promote the level of regional technological innovation,further promote the upgrading of industrial structure,and promote economic growth.Due to abundant resource endowment conditions and other reasons,the structural differences between the North and South regions are more obvious when technological innovation promotes economic growth.Third,there is a negative impact relationship between the level of industrial agglomeration and the economic growth level of the southern region,which may be due to the siphon effect caused by the industrial agglomeration in the north,which leads to the spillover of the southern region and inhibits the economic growth of the south to a certain extent.Therefore,this study puts forward the following policy suggestions based on the research conclusions: first,we should increase the investment in regional technological innovation and adjust the investment layout;Second,make use of existing advantages to accelerate the transformation and upgrading of the industrial structure in the northern region;Third,strengthen the construction of a technological innovation environment in the northern region.And use relevant suggestions to provide policy support for narrowing the gap in technological innovation capabilities between the north and south regions of China,and then narrow the economic growth gap between the north and south regions,and help the government formulate reasonable regional development policies.The innovation point of this study is that it no longer studies China’s regional economy from the traditional perspectives of east-west,east-east,central and western regions,but analyzes China’s north-south technological innovation and economic growth from the north-south region,and carries out theoretical analysis and empirical test of the impact mechanism of north-south technological innovation on economic growth,which supplements the existing research results to a certain extent.The lack of research is that some index data are difficult to obtain,and the time span available is limited,and after using corresponding methods to process data,there may be certain errors between the processed data and the real data. |