Abstract: Introducing convenient transportation and informational proximity to extend the dimensions of proximity, and employing the panel data from high-tech industries of 31 Chinese provinces in 1995-2010, this paper examines the effects on inter-regional knowledge spillovers of geographical proximity, informational proximity, convenient transportation degree and combined proximities by spatial panel data analysis. The empirical results indicate that positive spatial autocorrelation is significantly and strengthened. Second，R＆D capital contributes more than R＆D labor on knowledge production. Third, under all dimensions of proximities except informational proximity discussed in the paper，the presence of Chinese inter-provincial knowledge spillovers in high-tech industries is much evident. Fourth, under the single dimension of proximity, geographical proximity make somewhat higher effects on inter-regional knowledge spillovers than other proximity does. But the effects under informational and convenient transportation combined proximity indicate that the geographical will be no longer the main restrictive factor for development. Fifth, combined proximity does not behavior as prediction in that it can’t promote inter-regional knowledge spillovers much more. At the end of the paper, we discuss the implications and give some suggestions.

摘要： 通过拓展多维邻近的概念，引入信息化邻近与交通便利度两个邻近维度，基于中国区域高技术产业1995年-2012年的面板数据，采用空间面板计量经济方法，对地理邻近、信息化邻近与交通便利度单维度及其交互邻近下中国研发创新的省际知识溢出效应进行研究。发现：我国区域高技术产业存在显著的正向空间自相关，且相关性逐渐增强；研发资本对创新产出的贡献要高于研发人员；除信息化邻近外各邻近下的省际溢出效应均呈现显著的促进作用；单维度邻近下，地理邻近的作用效果最大，但是在信息化与交通便利度交互邻近下，地理距离将不再是发展的主要制约因素；三维度交互邻近下的空间知识溢出效应并没有显著增强。最后讨论了上述结果背后可能的发生机制，并提出相关的建议。