统计研究

当前，数字经济已成为推动我国经济增长的关键力量，也将是我国低碳发展进程中的动力来源。本文对我国数字经济赋能低碳发展的理论逻辑进行深度剖析，并利用我国212个地级及以上城市2011—2019年的数据，对数字经济影响低碳发展的作用路径进行实证检验。研究结果表明，数字经济能够有效赋能低碳发展，且该结论经过稳健性检验之后依然成立。作用机制分析显示，数字经济能够通过提高资源配置效率和促进产业结构优化升级两条机制赋能城市低碳发展，但数字经济通过增强绿色低碳技术创新水平赋能低碳发展的机制仍需进一步畅通。异质性分析显示，数字经济的赋能效应在环渤海经济圈、长三角经济圈、珠三角经济圈以及大城市发挥得更为充分。空间效应分析显示，数字经济的空间溢出效应能够助力城市间形成低碳发展协同机制。本文为数字经济赋能低碳发展提供理论依据与实证支撑，也为我国从数字经济入手助力实现“双碳”目标提供政策启示。

At present, digital economy has become a key force to promote China's economic growth, and will also be an driving force in the process of China's low-carbon development. This paper deeply analyzes the theoretical logic of China's digital economy enabling low-carbon development, and empirically tests the path of digital economy affecting low-carbon development by using the data of 212 cities at or above the prefecture level in China from 2011 to 2019. The results show that digital economy can effectively enable low-carbon development, and this conclusion still holds after the robustness tests. The mechanism analysis shows that digital economy can enable low-carbon development by improving the efficiency of resource allocation and promoting the optimization and upgrading of industrial structure. However, the mechanism for enabling low-carbon development by enhancing the level of green and low-carbon technology innovation still needs to be further unblocked. The heterogeneity analysis shows that the enabling effect of digital economy runs more fully in Bohai rim economic circle, Yangtze River Delta economic circle, Pearl River Delta economic circle and big cities. The spatial effect analysis shows that the spatial spillover effect of digital economy can help the formation of the synergy mechanism of low-carbon development among cities. The research of this paper not only provides theoretical basis and empirical support for digital economy enabling low-carbon development, but also provides policy enlightenment for China to realize the targets of carbon neutrality and carbon peak from the perspective of digital economy.