Economic Agglomeration,Spatial Structure and Urban Innovation——An Empirical Study Based on Data of 233 Cities at the Prefecture Level and Above in China
Ni Jinfeng 1, Li Hua 2
1.School of Economics,Lanzhou University,Lanzhou 730000,China; 2.Accounting Institute,Tongling University,Tongling 244061,China
Abstract：Using the corrected DMSP/OLS data,this paper empirically examines the chain reaction of economic agglomeration,spatial structure and technological innovation in the urban dimension.The results show that there is an U-shaped relationship between economic agglomeration and technological innovation,but generally,the marginal innovation output of agglomeration is increasing.There is an inverted U-shaped relationship between Space Herfindahl-Hirschman Index and technological innovation.The Herfindahl-Hirschman Index of the optimal spatial structure is about 0.423;The interaction effect between economic agglomeration and spatial structure is negative,and the“crowding-in effect”of restraining innovation appears in a single-center structured city with a high degree of agglomeration.However,the less agglomerated polycentric city is not conducive to innovation.Therefore,the policy meaning is obvious:in order to make use of the incremental innovation effect of agglomeration,we should not overemphasize the“urban disease”to control the scale of the big cities;we should pay attention to the reasonable match between urban economic agglomeration and the spatial structure,guide the small and medium-sized cities to take the compact space development mode as well as moderately promote the Suburban development of big cities.
倪进峰, 李华. 经济集聚、空间结构与城市创新——基于233个地级及以上城市数据的实证研究[J]. 中国科技论坛, 2018(10): 146-153.
Ni Jinfeng , Li Hua. Economic Agglomeration,Spatial Structure and Urban Innovation——An Empirical Study Based on Data of 233 Cities at the Prefecture Level and Above in China. , 2018(10): 146-153.
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