中国省际创新知识的空间溢出效应测度*——基于地理距离的视角

本文利用2002-2012年中国31个省域统计数据，基于地理距离视角实证研究了中国省际外显、内隐知识的空间溢出效应及其地理边界。本文研究发现，中国省际外显知识和内隐知识均存在显著的空间溢出效应，其中外显知识空间溢出效应大于内隐知识空间溢出效应。随着地理距离的增加，外显、内隐知识空间溢出效应均呈现下降趋势，但外显知识空间溢出效应在1 000千米范围外快速下降，而内隐知识在1 100千米范围外已不存在统计意义上的空间溢出效应。与简单增加研发人员和资本相比，促进研发人员交流互动及优化资本结构更能促进地区知识增长。\

MEASUREMENT OF SPATIAL SPILLOVERS OF CHINESE PROVINCIAL INNOVATION KNOWLEDGE---Based on Perspective of Geographic Distance

This paper studies on spatial spillover effect and its geographic boundary of explicit and implicit knowledge based on the perspective of geographic distance, using statistical data of Chinas 31 provinces from 2002 to 2012, and we get several finds. Firstly, there exists significant spatial spillover effect of explicit and implicit knowledge among the Chinese provinces, and spillover effect of explicit knowledge is greater than it of implicit knowledge. With increasing geographic distance, spillover effect of explicit and implicit knowledge all present downward trend, and spillover effect of explicit knowledge declines rapidly outside the range of 1 000 kilometers, spillover effect of implicit knowledge no longer exist outside the range of 1 100 kilometers. Compared with simply increasing R&D personnel and capital, promoting interaction of R&D personnel and optimization of capital structure is more useful for regional knowledge growth. Finally, conclusions and policy recommendations expressed herein.