本文从信息化设施和信息产业两方面来认识区域信息化水平,对中国各省区的信息化水平进行了定量估算和综合评价。在区域信息化水平测度的基础上,本文从以下两方面分析了信息化的区域影响。作为区域经济的一个部门,研究结果显示中国大部分省区信息产业与区域经济增长呈现了不同程度的正的相关性。文章重点分析了信息化设施溢出对区域经济的影响。运用相应的经济增长核算模型,分单区域和两区域研究信息化设施溢出对经济增长的贡献。估算结果显示信息化设施溢出的增长作用存在区域差异。在作用机制上,单区域信息化设施的溢出与两区域的情况也有差异。

Informatization is a cover-all concept. This paper analyzed regional informatization from two aspects including infrastructure and information industry. The fort is the footstone, the late is the core of informatization. The levels of regional informatization were measured with index composing.In China, the information infrastructure concentrated on the developed provinces and those locate near the board The information industry was the best in the East area. But the information industry accounted for the bigger proportion in the output of underdevelopment areas. The effect of informatization on the regional economic growth was studied from following two sides. As an economy section, the growth of the information industry was positively relating to the growth of GDP on different extent to different provinces. Another focus of the paper was on the effect of the spillover of infrastructure。Accordingly the economic growth accounting model with spillover was applied to evaluate the contribution of spillover of informatization infrastructure to regional economic growth. Two cases of single and bi-regions are discussed respectively. From the views of Three regions of China, the East was the major source of spillover. The West got the most benefit from the spillover of in formation infrastructure. And the Central hold the position as the West to accept the spillover from the East due to the gap of information infrastructure between the East and the Central. From the views of provinces, Except of individual province, the province benefited from local infrastructure spillover was also the region in which the information infrastructure of foreign and local region together made the positive on the economic growth. The spillover of information infrastructure was smaller in case of bi-regions than that in single region. Moreover the machine of spillover of information infrastructure of single region is not same to that of bi-regions. Firstly, information infrastructure was generally different from the traditional infrastructure that it was of high technological. Person were required learning in using it, and that promoted the human capital and skill progress, the economic growth was accordingly achieved. Secondly, in the case of bi-regions, the economic growth of one of regions resulted from the increasing of trading and knowledge spillover along with the information communication which were supported by the information infrastructure of two regions.