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本文利用空间四分位图说明我国各省份的企业R&D经费投入呈现梯度空间格局,Moran’I指数、LISA集聚图等探索性空间数据分析方法说明了企业R&D经费投入存在较显著的空间相关性,呈现空间集聚特征。本文以2001—2013年我国30个省份的样本数据,构建空间面板滞后模型的回归结果显示,空间回归系数为正,证明了我国各省份企业研发投入受周边省份研发投入的正向影响,研发人员数量、外商直接投资、企业新产品销售收入均对R&D经费投入产生较显著的正向作用。
In this paper, spatial quartiles are used to illustrate that the R & D investment of enterprises in all provinces in China presents a gradient spatial pattern. The exploratory spatial data analysis methods such as Moran’I index and LISA clustering graph show that there is a significant spatial correlation between R & Showing the characteristics of space gathering. Based on the sample data of 30 provinces in China from 2001 to 2013, the regression results of constructing the hysteresis model of the spatial panel show that the spatial regression coefficient is positive, which proves that the R & D investment in each province in our country is positively influenced by the R & The volume, foreign direct investment and sales revenue of new products of enterprises all have a significant positive effect on R & D expenditure.