数字基础设施建设对城市发展新质生产力的影响

摘要/Abstract

摘要： 数字基础设施建设是城市加快发展新质生产力的基础底座。本文基于2010—2022年284个地级市面板数据，以“宽带中国”政策为准自然实验，运用动态双重差分模型实证检验数字基础设施建设对城市发展新质生产力的影响及其作用机制。研究发现，数字基础设施建设对城市发展新质生产力具有显著的促进作用。在网络效应和正外部性影响下，数字基础设施建设能够通过刺激城市绿色技术创新、提高规模以上企业在城市内部集聚程度和加快产业结构升级的方式提升城市新质生产力发展水平。本文量化评估了数字基础设施赋能城市发展新质生产力的经济效应，为因地制宜发展新质生产力政策实施提供了重要启示。

关键词: 数字基础设施建设, 新质生产力, 宽带中国, 双重渐进差分

Abstract: Digital infrastructure construction is the basic foundation for cities to accelerate the development of new quality productivity. Based on the prefecture panel data of 284 cities over the period from 2010 to 2022, the empirical analysis takes the “Broadband China” strategy as a quasi-natural experiment and tests the impact of digital infrastructure construction on the new quality productivity of urban development and its mechanism. The research findings indicate that the digital infrastructure construction is conducive to the development of new quality productivity in cities. Under the influence of network effects and positive externalities, the digital infrastructure construction can improve the development level of urban new quality productivity by stimulating urban green technology innovation, improving the degree of agglomeration of enterprises above designated size in cities, and accelerating the evolution of industrial structure upgrading. This research quantitatively evaluates the economic effect of digital infrastructure empowering cities to develop new quality productivity. It provides a useful reference for the development of new quality productivity according to local conditions.

Key words: digital infrastructure construction, new quality productivity, Broadband China, generalized difference-in-differences

李晓炫, 刘颖. 数字基础设施建设对城市发展新质生产力的影响[J]. 管理评论, 2025, 37(11): 141-152.

Li Xiaoxuan, Liu Ying. The Impact of Digital Infrastructure Construction on the Development of New Quality Productivity in Cities[J]. Management Review, 2025, 37(11): 141-152.

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