中国数字经济空间网络结构演化及其驱动因素

Evolution and driving factors of spatial network structure of digital economy in China

本文运用修正的CRITIC评价法测度了2013—2020年中国省域数字经济发展水平,运用社会网络分析方法探究了数字经济空间网络结构演化特征及其成因。结果表明:①中国数字经济发展水平总体呈现稳步上升态势,空间格局上表现为东高西低的特征。②研究期内,中国省域数字经济的空间关联网络呈现出多线程与稠密化的复杂结网态势,网络密度有所提升,整体不存在等级森严的空间结构。③经济发达地区在空间网络结构中的优势地位显著,西部及边陲地区与其他地区的互联互通能力有待提升;凝聚子群空间分布逐渐形成有序的团块化分布。④数字经济空间网络结构是多因素综合作用的结果,科技创新水平、政府支持力度及地理空间距离始终表现出显著作用,而经济发展水平、产业结构水平和城镇化水平的效应则体现出先强后弱的阶段性特征,上述因素共同驱动着中国省域数字经济空间网络结构的优化与重组。

In the era of digitalization,it is of great practical significance to explore the spatial network struc-ture of digital economy and its driving factors for promoting the construction of“digital China”.The research applied the modified CRITIC evaluation method to measure the development level of digital economy of China from 2013 to 2020,and explored the evolution characteristics and causes of the spatial network structure of the digital economy by social network analysis.The results show that:1)The overall level of digital economy de-velopment has shown a steady upward trend,and the spatial pattern is characterized by high in the east and low in the west.2)During the study period,the spatial connection network of the provincial digital economy in China shows a complex situation of multi-threaded and dense networking.The network density is improved,and there is no hierarchical spatial structure as a whole.3)The economically developed regions have a signific-ant advantage in the spatial network structure,and the connections between the western and border regions and other regions needs to be improved;the condensed subgroup spatial distribution gradually forms an orderly ag-glomerated distribution.4)The spatial correlation network of digital economy is affected by the joint action of multiple factors.The level of scientific and technological innovation,government support and geographical dis-tance have always played a significant role,while the effects of economic development level,industrial struc-ture level and urbanization level reflect the stage characteristics by strong first and weak later.The above factors together drive the optimization and restructuring of the provincial digital economy spatial network structure in China.