【摘要】 基于2011-2020年长三角41个地级市面板数据集，从时空两个维度对数字经济促进技术创新，进而推动长三角经济高质量发展的机制进行分析，并运用空间杜宾模型和中介效应模型对其影响过程、机理与空间异质性进行实证检验。研究结果表明，数字经济能够显著提升长三角区域高质量发展水平。在考虑内生性问题和进行一系列稳健性检验之后，该结论依然成立。数字经济在中心城市和外围城市、资源型城市和非资源城市呈现显著异质性，技术创新在数字经济推动高质量发展的过程中发挥部分中介作用。数字经济在高质量发展中还存在空间溢出效应，有助于长三角区域形成协调发展格局。更多还原

【Abstract】 Based on the panel data sets of 41 prefectural cities in the Yangtze River Delta from 2011 to 2020, this paper analyzes the mechanism by which the digital economy promotes technological innovation and then promotes the high-quality economic development of the Yangtze River Delta in the temporal and spatial dimensions. The mediation effect model is adopted for the empirical study of its influence process, mechanism, and spatial heterogeneity. The results show that: 1) The digital economy has significantly improved the high-quality development of the Yangtze River Delta; 2) The digital economy presents significant heterogeneity in central and peripheral cities, resource-based and non-resource cities; 3) Technological innovation plays a partial intermediary role in the promotion of the high-quality development of the digital economy; and 4) The digital economy has spatial spillover effects on high-quality development, which will contribute to the formation of a coordinated development pattern of the Yangtze River Delta.更多还原