增加R&D投入一定会促进城市经济高质量发展吗?——来自中国280个地级城市的经验证据  

Will Increasing R&D Investment Promote High-Quality Development of Urban Economy:Empirical Evidence from 280 Prefecture-Level Cities in China

作　　者：魏杰 WEI Jie(Party School of Shangyu,Shaoxing,Zhejiang 312300,China)

机构地区：[1]中共绍兴市上虞区委党校,浙江绍兴312300

出　　处：《城市学刊》2024年第4期49-55,共7页Journal of Urban Studies

基　　金：浙江省党校系统社会科学联合会规划课题(ND23190)。

摘　　要：如何促进城市经济高质量发展是目前社会各界关注的重要议题,R&D投入和科技创新一直是经济发展需要考虑的两个重要影响因素。利用2017—2019年280个地级及以上城市的相关数据,实证分析R&D投入对经济发展质量的影响。研究发现,R&D投入和经济发展质量之间存在倒“U”型关系,即一定数量的R&D投入可以促进经济发展质量的提升;但R&D投入超过一定阈值后,更多数量的R&D投入则会给经济发展质量带来负面影响;科技创新是R&D投入影响经济发展质量的一个重要传导渠道;在大中城市中,科技创新在R&D投入和经济发展质量之间的中介作用会更加明显;在小城市中,R&D投入和经济发展质量之间的倒“U”型关系更加显著。因此,通过加大R&D投入来提升科技创新水平进而提升经济发展质量是一条切实可行的路径,但R&D投入并不是越多越好,而是只有将R&D投入有效地转化为科技创新产出,才能更好地实现经济高质量发展。How to promote the high-quality development of the urban economy is currently an important issue of concern to all sectors of society,and R&D investments and science and technology innovation have always been two important influencing factors that need to be considered for economic development.The impact of R&D investments on the quality of economic development is empirically analyzed using the relevant data from 280 prefecture-level and above cities from 2017 to 2019.Research has found that there is an inverted U-shaped relationship between R&D investments and high-quality economic development,that is,a certain amount of R&D investments can promote high-quality economic development,but when R&D investment exceeds a certain threshold,a larger amount of R&D investment will have a negative impact on the quality of economic development.Scientific and technological innovation is an important transmission channel between R&D investment and high-quality economic development.The mediating role of science and technology innovation between R&D investments and economic development quality will be more obvious;while in small cities,the inverted U-shaped relationship between R&D investments and high-quality economic development is more significant.Therefore,it is a practicable path to improve the quality of economic development by increasing R&D investments to enhance scientific and technological innovation,but R&D investments are not the more the better.Only by effectively converting R&D investments into technological innovation output can high-quality economic development be better achieved.

关 键 词：R&D投入 科技创新 经济发展质量 地级城市 

分 类 号：F061.2[经济管理—政治经济学]