统计与数据科学学院知识库

 自党的十九大以来，我国经济已从高速发展阶段转变为经济高质量发展阶段。 随着我国信息化的发展，数字经济已成为我国经济高质量发展的新引擎，当前研 究数字经济对经济高质量发展的影响机理，对促进经济高质量发展具有重要意义。本文基于 2010-2021 年数据构建相关指标体系测算数字经济与经济高质量发展 的综合指数，研究数字经济对区域经济高质量发展水平的影响程度，并对今后发 展给出建议。
       本文基于现有的文献，首先界定数字经济与经济高质量发展的定义，剖析数 字经济与经济高质量发展的现状。其次，在相关学术研究的基础上为数字经济和 经济高质量构建综合指标体系，从互联网发展和数字金融两个方面构建数字经济 指标体系，基于五大新发展理念构建经济高质量指标体系，利用熵值法测算数字 经济水平与经济高质量发展的综合指数，根据测算结果绘制时序分布图，分析数 字经济和经济高质量发展水平的变化趋势。最后依次构建基准回归模型、中介效 应检验模型、面板门槛模型以及面板分位数模型的检验方法来研究数字经济对区 域经济高质量发展的影响机理分析，进而得出研究结论，并提出相关建议。
       本文经过分析，得出以下结论:(1)数字经济的发展有助于提升经济高质量发展，并呈现区域异质性，按照东中西部地区的顺序作用程度依次减弱。(2) 在推动经济高质量发展的过程中，人力资本水平、政府干预水平以及城市化水平 等指标的作用程度不容忽视，且均表现出正向的显著影响作用。(3)基于间接 效应视角，产业结构升级水平存在部分中介效应，并在各地区之间存在一定的区 域差异性，东部地区的影响力最强，西部地区的影响力最弱。(4)数字经济水平与产业结构升级水平之间存在门槛效应，即数字经济对经济高质量发展的影响呈现非线性关系。
       基于以上结论，本文提出以下建议:(1)加快数字经济发展，促进数字化转型，各地区应充分利用数字经济的积极作用推动经济增长。(2)注重人才培养体系，增加政府支持力度，推动城镇化发展进程，政府应大力支持引进人才，并建设数字科技，提升各省数字经济水平。(3)因地制宜地制定适合本地区经济高质量发展的策略。我国各地区之间的数字化水平存在区域异质性，因此根据区域发展的不同制定相应的发展政策，让数字经济带动经济高质量发展。(4) 加速推动产业结构转型升级。注重推动大数据、人工智能等数字化基础设施建设，提高产业升级的质量，进而不断增强产业的竞争力，确保产业的稳定发展，为优化产业结构提供关键支持。

   Since the 19th National Congress of the Party, China's economy has already turned from the fast growing period to the phase of high quality growth of the economy.With growths of China's informationization, the diamond economy has become a new engine for China's industrial high quality growth, and it is of import to study on the mechanism of the technological economy's impact on the quality growth of the industry, in order to promote the high quality growth of the economy. Based on the data from 2010 to 2021, this paper constructs a relevant index system to measure the comprehensive index of numerical industry and quality improvement of industry, researches the degree of influence of numerical industry on the level of quality improvement of regional economy, and gives suggestions for the future development.
        Based on the current documents, this paper first defines the meaning of domestic technology and quality improvement, and analyzes the present condition of domestic technology and quality improvement; secondly, it builds a integrated index system for domestic technology and quality improvement on the basis of the relevant academic research. The domestic technology system is based on the Internet industry and domestic financial industry; the domestic technology system is focused on the five new ideas of growth and economic innovation; the composite indicators of the domestic technology and economic innovation are measured by entropy calculation; and the spatial according to the results of the calculation, so as to analyze the trend of the c and the level of quality of the economy and the spatial evolution of the level of the dynamic evolution of the technology and the level of quality of the economy. Finally, the benchmark regression method, the mediation effect test model, the panel threshold model and the panel quartile model are constructed to study the mechanism underlying the regional quality improvement of the domestic economy.This leads to the findings of the study and presentation of related recommendations.
        Based on the findings listed this document offers the below proposals: (1) Accelerate the growth of the domestic economy and boost digital conversion, and regions should make full use of the positive effects of the domestic economy to push forward economic growth.(2) In the process of promoting high-quality economic development, the impact of indicators such as human capital level, government intervention level and urbanization level cannot be ignored, and all of them show a positive and significant impact. (3) From the perspective of intermediary effect, there is an intermediary effect in the level of industrial structure upgrading, and there are certain regional differences among regions, with the influence of the eastern region being the strongest and the western region being the weakest. (4) There is a doorstep function which exists between the level of domestic economy and the level of industrial restructuring and promotion, the result is that the influenced of domestic economy on the quality improvement of the economy shows a non-linear relationship.
        Based on these findings, this document offers the below proposals: (1) Accelerating the growth of the domestic digital economy and promote digital transformation, all regions should make full use of the positive role of the digital economy to promote economic growth. (2) Pay attention to the talent training system, increase government support, and promote the process of urbanization development, the government should vigorously support the introduction of talents, and build digital technology to improve the level of digital economy in all provinces. (3) Formulate strategies suitable for the high-quality development of the region's economy according to local conditions. There is regional heterogeneity in the level of digitalization among different regions in China, so design of relevant operational policies for growth and development under different regional developments, so that the digital economy can drive high-quality economic development. (4) Accelerate the transformation and upgrading of the industrial structure. Focus on promoting the construction of digital infrastructure such as big data and artificial intelligence, improve the quality of industrial upgrading, and then continuously enhance the competitiveness of the industry, ensure the stable development of the industry, and provide key support for optimizing the industrial structure.