Regional Difference And Matthew Effect Of R&D Investment On Economic Growth

With the advent of the era of knowledge economy,the importance of innovation has become increasingly significant.The ability of scientific and technological innovation has increasingly become an important factor in measuring the comprehensive strength of a country.Since the party’s 18 th National Congress report puts forward the “innovation-driven development strategy”,China has stepped up its pace of technological innovation and strives to achieve a more active position in the increasingly fierce international competition.Research on R&D innovation investment,innovation output and economic growth has always been a hot spot for scholars at home and abroad,and whether the regions with different levels of economic development can narrow the gap between them by increasing R&D investment is urgently needed to be solved.The key issue.In recent years,under the background of the “One Belt,One Road” strategy,the “Guangdong Free Trade Zone ” and the “ Guangdong,Hong Kong and Macao Dawan District ” have successively put forward the important position of Guangdong in the new round of reform and innovation.It is necessary to conduct in-depth research on the development of innovation.Therefore,this paper takes the cities of Guangdong Province as the research object,and conducts in-depth discussion and research on the relationship between R&D innovation investment and economic growth.Firstly,starting from the relationship between R&D innovation investment and economic growth,the previous research progress is sorted out,and the Cobb-Douglas production function is used as the basic model to introduce regional dummy variables and time dummy variables,from spatial differentiation and time series.Empirical analysis of the impact of R&D investment in various regions on economic growth.The results show that the total social R&D investment in Guangdong Province has a significant positive impact on economic growth;the impact of R&D investment on economic growth in the more developed regions(Pearl River Delta)and the less developed regions(Guangdong,North and West)is different.It is twice as large as the latter,and there are obvious inter-regional differences.From the perspective of time,the gap between R&D investment between the two is getting larger and larger,that is,there is a “Matthew effect”;at the same time,the robustness test is also carried out.The results also confirm the above analysis.Secondly,taking the relationship between R&D innovation investment and innovation output as the starting point,discussing the regional differences in R&D efficiency,and combing the two methods commonly used in researching R&D efficiency,namely Data Envelopment Analysis(DEA)and Stochastic Frontier Analysis(SFA),and according to the research purpose and content of this paper,choose the stochastic frontier model based on the change of technical efficiency with time to explore the difference between R&D efficiency of the economically developed Pearl River Delta region in the province and the underdeveloped Guangdong-East-North region;Virtual variables capture the effects of technological advancement and examine the impact of regional economic levels,information fluency,marketization,and educational emphasis on regional R&D innovation efficiency.The results show that the research and development efficiency of the Pearl River Delta region and the eastern and western regions of Guangdong are significantly different,the former is about five times that of the latter;while the overall technological progress effect is significant,the difference in research and development efficiency between the two is expanding with time.That is to say,there is a "Matthew effect";the fluency of information and the importance of education have a significant role in promoting the research and development efficiency of backward areas.Local governments should pay attention to information infrastructure and vigorously develop education.Finally,based on the results of empirical analysis,this paper puts forward some suggestions that each region should choose the development road suitable for its own actual situation,and at the same time improve its own innovation efficiency,so as to better promote the rapid and efficient development of the economy.