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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 被引量:5

Economic Agglomeration,Spatial Structure and Urban Innovation——An Empirical Study Based on Data of 233 Cities at the Prefecture Level and Above in China
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摘要 本文利用校正后的DMSP/OLS夜间灯光数据,从城市维度实证考察经济集聚、空间结构与技术创新能力的链式反应关系。结论显示:经济集聚与技术创新能力之间呈正U型关系,但总体来看经济集聚的边际创新效应递增;城市的单中心结构与技术创新之间呈倒U型关系,最优空间结构的赫芬达尔—赫希曼指数值约为0.423;经济集聚与空间结构的交互效应为负,抑制创新的"拥挤效应"会出现在集聚程度高的单中心结构城市,但集聚度较低的多中心城市也不利于创新。由此得到政策含义十分明显:考虑到经济集聚度越高越有利于技术创新,不宜过分强调"城市病"而控制大城市规模;注重城市经济集聚度与空间结构的合理匹配,引导中小城市走紧凑式空间发展道路,适度推动大城市的郊区化发展。 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 in-verted 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.
作者 倪进峰 李华 Ni Jinfeng;Li Hua(School of Economics,Lanzhou University,Lanzhou 730000,China;Accounting Institute,Tongling University,Tongling 244061,China)
出处 《中国科技论坛》 CSSCI 北大核心 2018年第10期146-153,162,共9页 Forum on Science and Technology in China
基金 中央高校基本科研业务费专项资金项目“共建‘丝路经济带’背景下我国西北地区金融合作机制研究”(15LZUJBVCYJ014),国家社会科学基金一般项目“创新驱动发展战略下成本动因拓展与集成系统研究”(14BGL004).
关键词 经济集聚 空间赫芬达尔-赫希曼指数 夜间灯光数据 城市创新 Economic agglomeration Spacial Herfindahl-Hirschman Index DMSP/OLS data Urban innovation
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