China construction labor hours halved since 2012 yet output held, fueling AI productivity debate
teortaxesTex · x · 2026-10-03
Glenn Luk notes China's construction investment is at record highs in nominal terms, but actual labor hours have roughly halved versus 2012-14 as unit labor costs tripled. Real output (e.g., km of HSR built) held up thanks to mechanization-driven productivity gains concentrated in 2016-2022.
teortaxesTex draws the broader lesson: tech-enabled productivity lets output keep growing despite a shrinking workforce, and China should find it even easier in tech-loaded sectors that aren't shrinking.
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