基于2000—2022年全国地级市数据，运用多期双重差分模型实证检验了公共数据平台上线对试点城市新型城镇化进程的作用，并探讨了其作用机制和异质性。研究发现，公共数据平台的上线显著提高了新型城镇化水平；进一步地，机制分析结果表明，数据要素共享主要通过促进产业结构调整升级、激活社会消费需求、优化政府治理行动影响新型城镇化水平。此外，异质性分析结果还发现，数据要素共享的效应在农业产值比重较大、人力资本水平较高、市场分割程度较低和地方财政压力较大的地区更为显著。

Based on the data from prefecture level cities across the country from 2000 to 2022. Adopting a multi-period Difference-in-Difference model, it empirically tests the role of the launch of public data platforms in the process of new urbanization and explores its mechanism and heterogeneity. Research has found that the launch of public data platforms significantly improves the level of new urbanization. Furthermore, the mechanism analysis shows that the effects of data sharing of digital elements on new urbanization is achieved through three aspects: promoting industrial structure adjustment and upgrading, activating social consumption demand, and improving government governance action. In addition, the paper also found that the main effect is more significant in the regions with a higher proportion of agricultural output value, higher level of human capital, lower degree of market segmentation, and higher local fiscal pressure.

D630

福建省社科研究基地重大项目（FJ2024MJDZ022）；福州市社会科学规划重点项目（2025FZB012）