统计与信息论坛

基于经济系统的投入产出视角，结合模糊集合思想从数字基础设施、数字创新、数字治理、数字产业化、产业数字化五个维度构建数字经济发展水平测度的综合评价指标体系，借助纵横向拉开档次法确定相应指标权重并编制2012—2019年中国省域数字经济发展指数。在此基础上，利用修正的引力模型测算省域数字经济发展的空间关联强度，并采用社会网络分析法揭示了数字经济关联网络的整体形态、内部结构与演化趋势。结果显示，中国数字经济发展整体呈蓬勃发展之势，但区域发展存在着明显的“马太效应”和“数字鸿沟”,数字经济发展水平由东部沿海向西部内陆逐级递减；数字经济关联网络初步成型，各地集聚效应和溢出效应逐步增强，省域数字资源要素的流动性大幅提升；广东、江苏、北京等地作为结构洞占据者，在数字经济发展中拥有信息和资源控制优势，河南、陕西和四川有效规模和限制度提升较快，被视为结构洞的潜在占据者；数字经济发展的小团体聚集特征明显，省级层面形成了4个凝聚子群，子群内部联动作用明显强于外部影响；受地理位置、气候条件等因素限制，西北子群成员交流疏淡，其子群内部密度低于网络整体密度，数字经济联系纽带有待进一步加强。研究结论对于推动中国数字经济发展新格局的构建具有重要的启示意义。

Based on the input-output perspective of economic systems, the index measurement system of digital economy development level is constructed from five dimensions: digital infrastructure, digital innovation, digital governance, digital industrialization and industrial digitization by combining the fuzzy set idea, and the weights are determined and compiled with the help of the vertical and horizontal pull-off method for China's provincial digital economy development index from 2012 to 2019.Based on this, the modified gravitation model is used to measure the spatial correlation intensity of the provincial digital economy development level, and the social network analysis is used to reveal the overall shape, internal structure, and evolutionary trend of the digital economy correlation network.The results are shown as follows.(1) The overall development of the digital economy across the country is on the rise, but the “Matthew effect” and “digital divide” are obvious, with the level of digital economy development decreasing from the eastern coast to the western inland.(2) The initial formation of a network of digital economy linkages, the agglomeration and spillover effects in various regions have gradually increased, and the mobility of digital resource elements in the province has been greatly enhanced.(3) Guangdong, Jiangsu, Beijing and other eastern provinces, as structural hole occupiers, have information and resource control advantages in the development of the digital economy, and Henan, Shaanxi and Sichuan, which have faster rate of effective scale and limit system enhancement, are seen as potential occupiers of structural holes.(4) The development of the digital economy is characterized by a clear aggregation of small groups, with four cohesive subgroups formed at the provincial level, and the linkage within the subgroups is significantly stronger than the external influence.(5) Due to geographical location, climatic conditions and other factors, there is less communication among members within the Northwest subgroup, and the density within its subgroup is lower than that of the whole network, and its internal digital economy tie needs to be further strengthened.The research findings have important implications for promoting the construction of a new pattern of digital economy development in China.