城市群数字经济指数测度及时空特征研究——基于关中平原城市群数据的分析

The Measurement and Spatial-Temporal Characteristics of Digital Economy Index of City Groups——Analysis based on the data of Guanzhong plain city group

城市群作为承载发展要素的重要空间载体,数字经济是增强其经济活力和国际影响力的关键要素。本文依据国家统计局最新公布的《数字经济及其核心产业统计分类(2021)》中的数字经济划分标准,结合我国城市群数字经济发展实践,建立数字经济指标体系,运用熵值法测算2013-2022年关中平原城市群及其内部11个城市的数字经济发展水平,并通过可视化处理分析其内部城市的时空特征。研究发现:关中平原城市群数字经济整体呈现波动增长,数字经济分项指标存在短板,城市群内部城市之间发展差异化明显,且影响各城市数字经济发展速度的因素不同。据此,提出对策:充分发挥各地区位优势,推进城市群数字经济协调发展;高效利用政策红利,数字基础设施建设与保障措施“双管齐下”;将一体化发展与差异化战略相结合,因地制宜开展城市群数字经济建设。

City groups are important spatial carriers carrying development factors,and digital economy is a key element to enhance their economic vitality and international influence.This paper establishes a digital economy index system based on the digital economy division standard in the Digital Economy and its Core Industry Statistical Classification(2021),published by the National Bureau of Statistics,combines with the practice of digital economy development in China's city groups,uses the entropy method to measure the digital economy development level of the Guanzhong Plain City Group and its 11 internal cities in the period of 2013-2022.It also analyzes the spatial-temporal characteristics of the cities within the cluster through visualization.The study finds that the digital economy of the Guanzhong Plain City Group as a whole shows fluctuating growth,there are shortcomings in the sub-indicators of the digital economy,there is obvious differentiation in the development among the cities within the group,and there are different factors influencing the speed of the development of the digital economy in each city.Accordingly,countermeasures are proposed:to give full play to the location advantages of each place to promote the coordinated development of the digital economy in the city groups;to make efficient use of the policy dividend,and to take a two-pronged approach to digital infrastructure construction and safeguards;and to combine the integrated development and differentiation strategies to carry out the construction of the digital economy of the city groups in accordance with the local conditions.