创新资源、空间溢出与城市发展——以长三角为例

Innovation Resources,Spatial Spillover and Urban Development——Taking the Yangtze River Delta as An Example

利用长三角地区26个城市2006—2015年的面板数据,运用Moran'I指数检验出长三角城市的发展水平存在显著的空间相关性;分别在邻接、地理和经济三种空间权重下,利用空间杜宾模型,将创新资源及其他因素对城市发展的空间溢出效应进行分解,研究结果表明:在不同空间关联模式下,创新资源均对城市发展有着正向空间溢出效应,固定资产投资、政府财政支出、经济开放度以及金融发展也会对城市发展产生不同程度的影响。周边城市创新资源溢出效应会影响到各城市的发展水平;与此同时,就城市发展中创新资源的空间溢出效应如何才能发挥更大的作用提出相关政策建议。

Using the panel data of 26 cities in the Yangtze River Delta region from 2006 to 2015,using the Moran＇I index to test that the development level of the Yangtze River Delta cities has a significant spatial correlation; under the three spatial weights of adjacency,geography,and economy,respectively,this papers uses Spatial Durbin Model to disaggregate the spatial spillover effects of innovation resources and other factors on urban development. The results show that,under different spatial correlation models,innovation resources have a positive spatial spillover effect on urban development; fixed asset investment,government financial expenditure,economic openness and financial development will also have different degrees of impact on urban development. The spillover effect of innovation resources in neighboring cities will affect the level of development of each city; at the same time,relevant policy recommendations are made on how the spatial spillover effect of innovation resources in urban development can play a greater role.