Abstract:

The imbalance in the acquisition and use of information and communication technologies(ICTs) in cities has become a key problem restricting the construction of Digital China.Therefore, analyzing the differences and influencing factors of urban informatization level has become an important content of narrowing the digital divide. Using the information and communication technology development index(IDI) defined by the International Telecommunication Union, this paper uses the location entropy method to measure the difference degree of informatization level of 275 cities in China since 2005, and then uses the spatial analysis and econometric methods to analyze their spatio-temporal differentiation pattern and influencing factors. It is found that:1)China's ICT Development Index Location Quotient(IDILQ)is still at a low level. Although the digital divide between regions tends to converge, there are still great differences among the east, middle and west regions. 2)From the perspective of temporal and spatial pattern, the IDILQ "H-H" agglomeration area has always been located in the Yangtze River Delta and Pearl River Delta along the eastern coast, and the "L-L" agglomeration area has transferred from the western region to the central region. 3)Cities with high IDILQ have a "polarization effect" on surrounding cities. However, the higher the proportion of young population, the higher the level of urbanization and the larger the proportion of employees in the information technology industry, the more conducive it is to improve the IDILQ and narrow the digital divide. In the transformation of digital revolution, we should guard against the adverse impact of informationization on the construction of shrinking cities and aging cities.

Key words: digital divide, Informatization and Communication Techonologies(ICTs), Space Panel SDM Model, regional differences, China

摘要：

各城市在获取和使用信息通信技术（ICTs）方面存在的不均衡性已成为制约数字中国建设的关键问题，因而分析城市ICTs发展差异及影响因素成为缩小数字鸿沟研究的重要内容。采用国际电信联盟定义的信息通信技术发展指数（IDI），利用区位熵法测度中国275个城市2005年以来的数字鸿沟，进而运用空间分析与计量方法分析其时空分异格局和影响因素。研究发现：①中国信息通信技术发展指数区位熵（IDILQ）仍处于较低水平，城市之间数字鸿沟虽然有不断收敛的趋势，但东、中、西地区的差异仍然较大。②从时空格局来看，IDILQ“高-高”集聚区一直位于东部沿海的长江三角洲地区和珠江三角洲地区，“低-低”集聚区则由西部地区向中部地区转移。③IDILQ高的城市对周边城市存在“极化效应”。但是，年轻人口比重越高、城镇化水平越高、信息技术业从业人员比重越大越有利于提高城市IDILQ，缩小数字鸿沟。在数字革命转型中，要谨防信息化对收缩城市、老龄化城市建设带来的不利影响。

关键词: 数字鸿沟, 信息通信技术, 空间面板SDM模型, 区域差异, 中国