Fast and furious: the productivity effects of the geography of experienced internet speeds
结合企业微观数据和用户端互联网速度数据，研究发现更快的网速能提升企业生产率，而不稳定的网速则产生相反效果，为政策制定者在效率与公平间的权衡提供依据。
Abstract The link between digital technologies and productivity has long intrigued researchers. Key to unpacking this relationship is detailed data connecting internet usage, economic outputs, and places. Using a multilevel modelling framework, we combine firm-level microdata with unique internet speed microdata that reflect end-user experiences, distinguishing upload and download speeds. This approach approximates business internet usage and reveals that higher speeds boost productivity, while unstable speeds have the opposite effect. These findings highlight the economic importance of high-speed internet infrastructure and present policymakers with a trade-off between efficiency and equity in planning decisions.