广东省城市创新能力的空间格局及其溢出效应研究

Study on Spatial Pattern and Spatial Spillover Effect of Urban Innovation Capability in Guangdong Province

摘要:

为探清广东省城市创新能力空间格局，通过构建城市创新能力综合指标体系，分析广东省21个城市20年的创新能力空间格局及演变，并使用空间计量模型分析城市创新能力空间溢出效应。研究表明：广东城市创新能力分布呈现出愈来愈典型的幂律分布特征，珠三角的深圳、广州等极少头部城市创新能力极高且趋于极化，粤东西北地区的尾部城市创新能力较低、占绝大多数且差异趋小；广东城市创新能力空间不平衡在扩大，主要原因是珠三角和粤东西北的地区间差距在扩大，而且珠三角地区内部差异迅速扩大所贡献的比重在增加；广东城市创新能力出现俱乐部集聚现象，表现出以深圳、广州为核心，周边城市创新能力逐层递减的“中心－外围”的空间结构；城市创新能力存在显著的正向空间溢出效应，邻近城市创新能力的影响因素也影响了本地创新能力。研究结论为促进广东创新能力平衡发展和协调发展提供了新的政策启示。

Abstract:

In order to clarify the characteristics and rules of the spatial pattern of urban innovation capacity in Guangdong Province, this paper constructs an index system of urban innovation capability and calculate the comprehensive index of urban innovation capability, analyzes the spatial pattern of innovation capability of 21 cities in Guangdong Province in 20 years, and analyzes the spatial spillover effect of urban innovation capability through the spatial econometric model. Conclusions can be drawn as follows: (1) The distribution of urban innovation capability in Guangdong shows an increasingly typical power-law distribution. The top cities are in Pearl River Delta which with high innovation capability, they are few and tend to be polarized. while the bottom cities are in other area which with low innovation capability, they account for the vast majority proportion and their gap was closing. (2) The imbalance of urban innovation ability in Guangdong is increasing, which is due to the widening gap between the Pearl River Delta and other areas of Guangdong, and the proportion of the rapid expansion of differences within the Pearl River Delta region is increasing. (3) The urban innovation capability of Guangdong has the phenomenon of club agglomeration, which shows the "center-periphery" spatial structure with Shenzhen and Guangzhou as the core and the innovation capability of the surrounding cities gradually decreasing. There is a significant positive spatial spillover effect of urban innovation capability, and the influencing factors of the innovation capability of neighboring cities also affect the local innovation capability. The conclusions of this study provide new policy implications for promoting the balanced and coordinated development of Guangdong innovation capacity.