城市创新能力的溢出效应与空间分布——对江苏省13地市的实证分析

The Spillover Effect and Spatial Distribution of the Urban Innovation Capacity——Empirical Analysis of 13 Cities of Jiangsu Province

城市创新能力的溢出受地理距离的限制,形成以创新能力强的城市为中心、创新能力弱的城市在边缘的"中心—边缘"空间格局。利用新经济地理学的空间自相关模型,分析江苏省13城市创新能力的空间分布特征,结果表明:城市创新能力具有明显的区域差异性,空间分布对创新型城市的发展有重要影响,城市之间呈现较强的空间依赖性和差异性,并初步形成了创新集群的"核心—边缘"空间分布格局。要实现创新型城市的快速健康发展,应打破空间约束,增强城市间技术创新的溢出效应,进而促进自身创新能力的提高。

Urban innovation spillover is limited by geographic distance,as a result,＂center-edge＂ spatial pattern by regarding the cities which have strong innovative capacity as centers and the cities which have weak innovative capacity as edges is formed.New economic-geography spatial auto-correlation model is used to analyze spatial distribution characteristics of innovative capacity in 13 cities of Jiangsu Province,the results show that urban innovative capacity has obvious regional difference,that spatial distribution has important influence on innovative cities development,that relatively strong spatial dependence and difference between cities is demonstrated and that ＂core-edge＂ spatial distribution pattern in innovative clusters is initially formed.In order to realize fast and healthy development of innovative cities,China should break spatial limitation,enhance technical spillover effect between cities and promote self-innovative capacity.