统计与数据科学学院知识库

黄河流域作为我国的重要经济地带和生态屏障，在经济社会发展中占据重要地位，因此，如何实现黄河流域经济高质量发展成为社会各界关注的重要议题。数字经济作为近年来新兴的经济形式，通过技术赋能提高传统产业数字化、智能化水平并影响着国民经济社会的各个方面，为经济发展开辟了新的路径，有效地提高了各地区资源要素流动的效率。在此背景下，本文探讨了数字经济促进黄河流域经济高质量发展的理论机制，测度了黄河流域数字经济发展和经济高质量发展水平，并实证分析了两者之间的关系。

本文首先梳理了国内外数字经济和经济高质量发展的相关文献研究，明确本文研究内容，并在此基础上界定了数字经济和经济高质量发展的内涵。其次，探究了数字经济发展影响黄河流域经济高质量发展的作用机制，并提出研究假设。再次，系统客观地构建了黄河流域数字经济和经济高质量发展综合评价指标体系，基于2011-2020年黄河流域32个地级市的面板数据测度了黄河流域数字经济发展水平和经济高质量发展综合指数，并分析了黄河流域各地级市数字经济和经济高质量发展的现状与差异。最后，基于指标测算结果和面板数据构建模型并进行实证分析，通过构建面板双固定模型检验数字经济对黄河流域经济高质量发展的促进作用，采用面板门槛模型探究数字经济影响黄河流域经济高质量发展的非线性特征，并通过面板分位数模型等分析数字经济影响黄河流域经济的异质性，通过空间计量模型探究数字经影响黄河流域经济高质量发展的空间溢出效应。最终本文可以得出以下结论：

第一，近年来，黄河流域数字经济发展水平和经济高质量发展水平大体上保持一致，总体均呈现出稳步上升的趋势，中、下游地区得益于基础设施建设的完善和数字技术的应用发展较快，而上游地区发展则较为缓慢。

第二，数字经济能够显著驱动黄河流域各地级市的经济高质量发展，且对经济高质量发展中的创新、协调、绿色和开放4大维度均有显著的促进作用。其中，数字经济对创新的影响最为显著，但对共享的影响不显著。

第三，数字经济对黄河流域经济高质量发展存在显著的非线性影响，即当数字经济发展到达一定程度后，其对黄河流域经济高质量发展的影响会有显著提升。

第四，数字经济对黄河流域经济高质量发展存在区域和经济发展水平上的异质性。

第五，数字经济对黄河流域经济高质量发展存在显著的空间抑制效应，即该地区数字经济的发展会对黄河流域其他地区的经济高质量发展产生负面影响。

As an important economic zone and ecological barrier, the Yellow River Basin plays an important role in the national economic and social development pattern.So how to achieve high-quality economic development in the Yellow River Basin has become an important issue of concern to all sectors of society. As a newly emerging economic form in recent years, the digital economy has improved the level of digitalization and intelligence of traditional industries through technological empowerment, and has affected various aspects of the national economy and society. It has opened up a new path for economic development, effectively improving the efficiency of resource element flow in various regions. In this context, this paper discusses the theoretical mechanism of digital economy promoting high-quality economic development in the Yellow River Basin, measures the development level of digital economy and high-quality economic development in the Yellow River Basin, and empirically analyzes the relationship between the two.

This paper firstly reviews relevant literature research on the digital economy and high-quality economic development at home and abroad, clarifies the research content of this paper, and defines the connotation of the digital economy and high-quality economic development on this basis. Secondly, it explores the mechanism by which the development of digital economy affects the high-quality development of the Yellow River Basin economy, and proposes research hypotheses. Thirdly, this paper systematically and objectively constructs a comprehensive evaluation index system for the digital economy and high-quality economic development in the Yellow River basin. Based on panel data from 32 prefecture-level cities in the Yellow River basin from 2011 to 2020, it measures the development level of the digital economy and the comprehensive index for high-quality economic development in the Yellow River basin, and analyzes the current situation and differences of the digital economy and high-quality economic development in various prefecture-level cities in the Yellow River basin. Finally, based on the indicator measurement results and panel data, this paper constructs a model and conducts empirical analysis. By constructing a panel dual fixed model, it examines the promotion effect of digital economy on the high-quality development of the Yellow River basin economy. It uses a panel threshold model to explore the non-linear characteristics of digital economy affecting the high-quality development of the Yellow River basin economy, and analyzes the heterogeneity of digital economy affecting the economy of the Yellow River basin through panel quantile models,and finally explores the spatial spillover effects of digital economy on high-quality economic development in the Yellow River basin through spatial econometric models. Finally, this paper can draw the following conclusions:

Firstly, in recent years, the development level of the digital economy in the Yellow River Basin has generally remained consistent with the high-quality development level of the economy, showing a steady upward trend overall. The middle and lower reaches have benefited from the improvement of infrastructure construction and the rapid development of digital technology applications, while the development of the upper reaches has been relatively slow.

Secondly, the digital economy can significantly drive the high-quality economic development of various cities in the Yellow River basin, and significantly promote the four dimensions of innovation, coordination, green, and openness in high-quality economic development. Among them, the digital economy has the most significant impact on innovation, but its impact on sharing is not significant.

Thirdly, the digital economy has a significant nonlinear impact on the high-quality development of the Yellow River basin economy, that is, when the development of the digital economy reaches a certain level, its impact on the high-quality development of the Yellow River basin economy will significantly increase.

Fourthly, there are regional and economic heterogeneity in the high-quality development of the Yellow River Basin economy due to the digital economy.

Fifthly, the digital economy has a significant spatial inhibitory effect on the high-quality economic development of the Yellow River basin, which means that the development of the digital economy in this region will have a negative impact on the high-quality economic development of other regions in the Yellow River basin.