研究基于2012—2014年国家智慧城市试点建设的准自然实验，利用2010—2020年中国家庭追踪调查（CFPS）数据，借助双重差分（DID）模型研究城市智慧化对居民体育锻炼参与的影响。研究结论：一是，城市智慧化促进了居民体育锻炼参与。该结论通过平行趋势检验、替换解释变量、被解释变量和替换样本的方法进行稳健性分析后依旧成立。二是，城市智慧化通过“居民收入约束放松效应”“信息渠道效应”两个可能途径，促进居民体育锻炼参与。三是，城市智慧化对中西部地区和中小城市居民体育锻炼参与有更强的促进效应。

Based on the quasi-natural experiment of the National Smart City Pilot Projects from 2012 to 2014， this study uses data from the China Family Panel Studies （CFPS） database from 2010 to 2020 and employs a multiple time-point differencein-differences （DID） model to investigate the impact of urban smartification on residents’ participation in physical exercise. The main findings are as follows： First， urban smartification promotes residents’ engagement in physical exercise. This conclusion remains robust after conducting parallel trend tests， replacing explanatory variables， and substituting samples for robustness analysis. Second， urban smartification promotes residents’ participation in physical exercise through two possible pathways： the “relaxation effect of income constraint” and the “relaxation effect of information constraint”. Third， urban smartification has a stronger promoting effect on residents’ participation in physical exercise in the central and western regions and small and medium-sized cities in China.

F49；F299.2；G806

国家社会科学基金项目（20BTY053）