The Impact Mechanism of Digital Infrastructure Construction on New-Quality Productive Forces: Decoding via a Quasi-Natural Experiment of "Broadband China"
Abstract
employs a multi-period difference-in-differences (DID) design with panel data from 262 Chinese prefecture-level cities (20092022) to investigate the causal mechanisms linking digital infrastructure to new-quality productive forces. Key findings reveal: (1) Digital infrastructure
construction exerts statistically significant positive effects on new-quality productive forces development, validated through parallel trend
diagnostics; (2) These effects operate predominantly through dual mediating channelsaugmented green total factor energy efficiency and
intensified urban economic density.
Keywords
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DOI: http://dx.doi.org/10.70711/frim.v3i10.7500
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