https://aifaultline.com/authors/yi-liu/New papers by Yi Liu in the AI Fault Line guide, and news naming them. https://aifaultline.com/research/p/doi-10-9734-ajeba-2026-v26i102409/https://aifaultline.com/research/p/doi-10-9734-ajeba-2026-v26i102409/Mon, 12 Oct 2026 00:00:00 +0000Using 32,914 firm-year observations of Chinese listed companies from 2011 to 2024, this paper finds that AI application significantly raises firm labour productivity, a result that holds under instrumental-variable estimation. Most of the effect runs through lower management expenses rather than through innovation or digitalisation.