--- title: "The unequal effects of trade and automation across local labor markets · AI Fault Line" url: https://aifaultline.com/research/p/doi-10-1016-j-jinteco-2024-103912/ description: "AI Fault Line is a neutral, evidence-cited field guide to why experts looking at the same developments disagree about AI's effect on productivity, jobs, inequality, regulation and the pace of change." --- [Research](https://aifaultline.com/research/) # The unequal effects of trade and automation across local labor markets Simon Galle, Linnea Lorentzen · Journal of International Economics · 1 Mar 2024 [Read original source](https://doi.org/10.1016/j.jinteco.2024.103912) Open access Where this sits in the debate - [Will AI destroy more jobs than it creates?](https://aifaultline.com/debate/jobs/) - [Will AI widen inequality?](https://aifaultline.com/debate/inequality/) · its finding supports the claim ([why studies differ](https://aifaultline.com/debate/inequality/#why)) Direction of the finding as read from the abstract by an AI model ([AI-written](https://aifaultline.com/about/)). ## Abstract We quantify the joint impact of the China shock and automation of labor, across US commuting zones (CZs) in the period 2000–2007. To this end, we employ a multi-sector gravity model of trade with Roy-Fréchet worker heterogeneity across sectors, where labor input can be automated. Automation and increased import competition from China are both sector-specific; they lead to contractions in a sector’s labor demand and a decline in relative income for CZs more specialized in that sector, amplified by a voluntary reduction in hours worked and an increase in frictional unemployment. The estimated model fits well with the aggregate performance of manufacturing subsectors and with the variation across CZs in changes in average income, the hourly wage, hours worked, the employment rate and employment in manufacturing. By itself, the China shock has stronger distributional effects than automation, but its impact on aggregate gains is less than a third of automation’s impact. ## About this publication **Leading field journal.** A leading journal in economics or a neighbouring field (on the Tinbergen Institute’s A list or near the top of the RePEc ranking), or a top-rated computer-science venue. Placed by: Tinbergen Institute A list. [How sources are ranked](https://aifaultline.com/about/#source-ranking). Published 2024 (32 months ago) Citations 9 (OpenAlex) ## Citations in context [Chart: 9 citations, cohort median 47] 9 citations — 17th percentile among the 23 indexed papers from 2024 in this collection. Citation counts favor older papers; this compares only same-year papers here, not the whole literature. [Chart: published 2024] □ added to this collection in 2026. ## More on this topic Related by theme, not necessarily by method or conclusion. - [The Effects of Generative AI on High Skilled Work: Evidence from Three Field Experiments with Software Developers](https://aifaultline.com/research/p/doi-10-2139-ssrn-4945566/) SSRN · 2024 - [GPTs are GPTs: An Early Look at the Labor Market Impact Potential of Large Language Models](https://aifaultline.com/research/p/doi-10-48550-arxiv-2303-10130/) arXiv · 2023 - [Extending “GPTs Are GPTs” to Firms](https://aifaultline.com/research/p/doi-10-1257-pandp-20251045/) AEA Papers and Proceedings · 2025 - [New Frontiers: The Origins and Content of New Work, 1940–2018](https://aifaultline.com/research/p/doi-10-1093-qje-qjae008/) The Quarterly Journal of Economics · 2024 Overview assembled automatically from collected metadata. [How this site is built](https://aifaultline.com/about/).