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实现共同富裕是社会主义的本质要求，中国共产党对实现共同富裕作出了具体的时间要求。随着信息时代的发展，数字乡村建设的推进给农村地区的经济发展带来了机会，在我国国民经济发展中发挥着越来越重要的作用。基于黄河流域特殊的地理位置和战略定位，探索其数字乡村建设如何推动共同富裕有着重大的理论和现实意义。数字乡村建设与实现共同富裕在时间上高度契合，数字乡村建设发展为实现共同富裕搭建了数字平台，数字乡村建设为缩小城乡发展差距提供弯道超车的机会。虽然现有的研究已经奠定了基础，并取得了一些研究成果，但准确衡量和测度数字乡村建设和共同富裕影响效应的研究仍处于起步阶段。

本文首先利用熵值法测度了黄河流域9省（区）在2007-2021年的数字乡村建设发展水平和共同富裕发展水平，对其二者的熵值结果进行分析排名，然后采用基准回归对数字乡村建设对共同富裕的影响效应进行分析，并使用中介效应模型对其作用机理进行检验，并且使用替换数字乡村建设和共同富裕测度方法和缩尾处理的方法进行稳健性检验，运用工具变量法和数字乡村建设滞后一期的方法进行内生性检验，最后分不同的维度和数字乡村建设的高低发展水平区进行异质性检验。

根据研究，本文得出以下结论：

一是，从总体上来看，黄河流域数字乡村建设的发展水平均值从2007年的0.096增至2021年的0.357，共同富裕的发展水平从2007年的0.197增至2021年的0.564，二者的发展水平均表现出升高趋势。在省级层面，各省（区）的数字乡村建设和共同富裕的发展水平都有明显提高，但无论是数字乡村建设发展水平还是共同富裕发展水平，黄河中下游地区的省份普遍高于上游地区的各省份。而且省份间存在较大差异。

二是，在黄河流域各省（区），数字乡村建设的发展为共同富裕的的实现做出了巨大贡献。同时，数字乡村建设对共同富裕的间接影响是通过产业结构升级、金融发展水平和外商直接投资等中介变量来实现的，即数字乡村建设可以提升产业结构升级、金融发展水平和外商直接投资，而产业结构升级、金融发展水平和外商直接投资又会对共同富裕产生积极影响。

三是，黄河流域各省（区）数字乡村建设对共同富裕的促进作用存在异质性。从测量维度看，数字应用环境对共同富裕的促进效应高于数字基础设施和数字服务环境，数字乡村建设对共同富裕共享性的促进效应高于对共同富裕发展性的促进；从数字乡村建设的发展水平看，高水平水平区的数字乡村建设对共同富裕的促进作用强于低发展水平区。

基于以上结论，本文提出以下建议：（1）大力推进数字乡村建设，夯实共同富裕的数字底座。完善数字基础设施，营造数字服务环境，加强数字化应用。

（2）推动产业结构升级，助推共同富裕。跨产业跨领域普及数字技术，转变经济发展模式，充分利用数字技术催生的新兴产业。（3）加大金融扶持力度，促进共同富裕。增加金融网点机构的数量，解决农村居民数字金融知识和能力不足问题，政府也应该给予优惠政策，鼓励更多金融机构参与。（4）引进外商直接投资，赋能共同富裕。建立健全监管体制，鼓励外商直接投资承担社会责任，促进对共同富裕的正向转化。（5）制定差异化的数字乡村建设发展策略。探索地区差异化发展道路，实施多层次、有针对性的战略，实现农村共同富裕。（6）推动政策向农业农村倾斜，增强对农村投资力度。政府在政策上给予适当调整，引导资源要素在城乡之间合理分配。

Realizing common wealth is the essential requirement of socialism, and the CPC has made specific time requirements for realizing common wealth. With the development of the information age, the promotion of digital village construction has brought opportunities for the economic development of rural areas. It plays an increasingly important role in the development of China's national economy. Based on the special geographic location and strategic positioning of the Yellow River Basin, it is of great theoretical and practical significance to explore how its digital countryside construction can promote common prosperity. Digital village construction and the realization of common wealth are highly compatible in time, the development of digital village construction builds a digital platform for the realization of common wealth, and digital village construction provides an opportunity to bend the road and overtake the car for narrowing the development gap between urban and rural areas. Although existing research has laid the foundation and achieved some research results, research to accurately measure and gauge the impact effects of digital village construction and common prosperity is still in its infancy.

This paper firstly measured the development level of digital village construction and common wealth development level of 9 provinces (districts) in the Yellow River Basin in 2007-2021 by using entropy method, analyzed and ranked the entropy results of both of them, and then analyzed the impact effect of digital village construction on common wealth by using benchmark regression, and examined the mechanism of its effect by using mediation effect model and tested the robustness test by using the method of replacing digital village construction and common wealth measurement and the method of shrinking tail treatment, and finally tested the endogeneity by different dimensions and the method of digital village construction lagged by one period. construction and common wealth measurement method and the method of shrinking tail treatment for robustness test, using instrumental variables method and digital village construction lagged one period of the method of endogeneity test, and finally divided into different dimensions and digital village construction of high and low development level area for heterogeneity test.

Based on the research, this paper draws the following conclusions:

First, on the whole, the average value of the development water of digital village construction in the Yellow River Basin increased from 0.096 in 2007 to 0.357 in 2021, and the development level of common wealth increased from 0.197 in 2007 to 0.564 in 2021, and the development level of both of them showed an elevated trend. At the provincial level, the development levels of digital village construction and common wealth in all provinces (districts) have increased significantly, but whether it is the development level of digital village construction or the development level of common wealth, the provinces in the middle and lower reaches of the Yellow River are generally higher than the provinces in the upper reaches of the river. And there are large differences between provinces.

Secondly, in the provinces (regions) of the Yellow River Basin, the development of digital village construction has made great contributions to the realization of common wealth. Meanwhile, the indirect impact of digital village construction on common wealth is realized through the mediating variables such as industrial structure upgrading, financial development level and foreign direct investment, i.e., digital village construction can enhance industrial structure upgrading, financial development level and foreign direct investment, and industrial structure upgrading, financial development level and foreign direct investment will in turn positively affect common wealth.

Thirdly, there is heterogeneity in the promotion effect of digital village construction on common wealth in the provinces (regions) of the Yellow River Basin. From the measurement dimension, the promotion effect of digital application environment on common wealth is higher than that of digital infrastructure and digital service environment, and the promotion effect of digital village construction on common wealth sharing is higher than that on common wealth development; from the viewpoint of the development level of digital village construction, the promotion effect of digital village construction on common wealth is stronger in the high level area than that in the low development level area.

Based on the above conclusions, this paper puts forward the following suggestions: (1) Vigorously promote the construction of digital villages and consolidate the digital base for common prosperity. Improve digital infrastructure, create a digital service environment, and strengthen digital applications.(2) Promote the upgrading of industrial structure and boost common prosperity. Popularize digital technology across industries and fields, change the mode of economic development, and make full use of emerging industries spawned by digital technology. (3) Increase financial support to promote common prosperity. Increase the number of financial outlets institutions to solve the problem of insufficient digital financial knowledge and ability of rural residents, and the government should also give preferential policies to encourage more financial institutions to participate. (4) Introduce foreign direct investment to empower the common wealth. Establish a sound regulatory system to encourage foreign direct investment to assume social responsibility and promote positive transformation to common wealth. (5) Formulate differentiated development strategies for digital village construction. Explore regional differentiated development paths and implement multi-level and targeted strategies to realize common prosperity in rural areas. (6) Promote policies tilted toward agriculture and rural areas and enhance investment in rural areas. The Government will make appropriate policy adjustments to guide the rational distribution of resource elements between urban and rural areas.