Cited by 2,612Labor market dynamics and wage inequalityEconomic Growth and ProductivityEconomic Theory and Policy

Automation and New Tasks: How Technology Displaces and Reinstates Labor

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Acemoglu, Daron, Restrepo, Pascual·2019·Journal of Economic Perspectives

Abstract

We present a framework for understanding the effects of automation and other types of technological changes on labor demand, and use it to interpret changes in US employment over the recent past. At the center of our framework is the allocation of tasks to capital and labor—the task content of production. Automation, which enables capital to replace labor in tasks it was previously engaged in, shifts the task content of production against labor because of a displacement effect. As a result, automation always reduces the labor share in value added and may reduce labor demand even as it raises productivity. The effects of automation are counterbalanced by the creation of new tasks in which labor has a comparative advantage. The introduction of new tasks changes the task content of production in favor of labor because of a reinstatement effect, and always raises the labor share and labor demand. We show how the role of changes in the task content of production—due to automation and new tasks—can be inferred from industry-level data. Our empirical decomposition suggests that the slower growth of employment over the last three decades is accounted for by an acceleration in the displacement effect, especially in manufacturing, a weaker reinstatement effect, and slower growth of productivity than in previous decades.

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  • Acemoglu and Restrepo (2019) formalize the tension between displacement and reinstatement forces in a general-equilibrium model, showing that automation strictly reduces labor demand unless offset by the creation of new tasks in which labor has a comparative advantage.

    “Acemoglu and Restrepo (2019) formalize this tension between displacement and reinstatement forces in a generalequilibrium model, showing that automation strictly reduces labor demand unless offset by the creation of new tasks in which labor has a comparative advantage.”

    From Labor Market Consequences of Generative AI: Early Evidence from Norway (2026) · cites this paper as Acemoglu and Restrepo, 2019

    Split into 2 atoms — 0 confirmed, 1 partially supported, 1 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • Technology displaces and reinstates labor.

    “This observation is an important empirical support for the recent theoretical work in labor economics, which posits that “technology displaces and reinstates labor” (Acemoglu and Restrepo 2019).”

    From Skill-Biased Technical Change, Again? Online Gig Platforms and Local Employment (2025) · cites this paper as Acemoglu and Restrepo 2019

  • AI chatbots have created new job tasks, extending even to workers who do not use the tools directly, signaling broader workplace transformations.

    “Second, aligning with theoretical predictions for how automation technologies may reinstate labor demand (Acemoglu and Restrepo, 2019), we find that AI chatbots have created new job tasks-extending even to workers who do not use the tools directly-signaling broader workplace transformations.”

    From Still Waters, Rapid Currents: Early Labor Market Transformation under Generative AI (2025) · cites this paper as Acemoglu and Restrepo, 2019

  • Concerns and uncertainties about the tentative loss of employment opportunities resulting from increased automation are present in agriculture, forestry and fisheries sectors.

    “Similar concerns and uncertainties about the tentative loss of employment opportunities resulting from increased automation [77] are present in these sectors as well of course [78].”

    From Artificial intelligence, systemic risks, and sustainability (2021) · cites this paper as [77]

  • ICT improvements that automate tasks previously done by labor can directly reduce the labor share if worker displacement effects outweigh increased demand for newly created non-automated tasks.

    “ICT improvements that facilitate the automation of tasks previously done by labor can directly reduce the labor share if worker displacement effects from the automated tasks outweigh increased demand for newly created non-automated tasks(Acemoglu and Restrepo, 2019).”

    From The Fall of the Labor Share and the Rise of Superstar Firms* (2020) · cites this paper as Acemoglu and Restrepo, 2019

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Research works printed but not linked: 27

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  2. Acemoglu, Daron, David Autor, David Dorn, Gordon H. Hanson, and Brendan Price. 2016. "Import Competition and the Great US Employ- ment Sag of the 2000s." Journal of Labor Economics 34(S1): S141-S198.
  3. Acemoglu, Daron, and Veronica Guer- rieri. 2008. "Capital Deepening and Nonbalanced Economic Growth." Journal of Political Economy 116(3): 476-98.
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  7. Autor, David H., Frank Levy, and Richard J. Murnane. 2003. "The Skill Content of Recent Technological Change: An Empirical Exploration." Quarterly Journal of Economics 118(4): 1279-1333.
  8. Autor, David, and Anna Salomons. 2018. "Is Automation Labor Share-Displacing? Productivity Growth, Employment, and the Labor Share." Brooking Papers on Economic Activity, no. 1, pp. 1-87.
  9. Budd, Edward C. 1960. "Factor Shares, 1850-1910." Chap. 9 in Trends in the American Economy in the Nineteenth Century. Princeton University Press.
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Authors
Acemoglu, D., & Restrepo, P.
Affiliations
  • Daron Acemoglu is Elizabeth and James Killian Professor of Economics, Massachusetts Institute of Technology, Cambridge, Massachusetts.
  • Boston University (US)
Venue
Journal of Economic Perspectives
Published
2019-05-01
Volume
33
Issue
2
Pages
3-30
ISSN
0895-3309 (ISSN-L)
OpenAlex
W2922903482
Cited by
2,612
References
0
Citations by year
2026: 805 · 2025: 653 · 2024: 445 · 2023: 271 · 2022: 206 · 2021: 136 · 2020: 66 · 2019: 22 · 2018: 2 · 2017: 2 · 2013: 1
FWCI
134.20
Type
journal article
Language
en
Open access
Locations
  • The Journal of Economic Perspectives (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Topics
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Labor market dynamics and wage inequality
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Economic Growth and Productivity
  • Social Sciences › Economics, Econometrics and Finance › General Economics, Econometrics and Finance › Economic Theory and Policy
Keywords
automation, job displacement, labor share, labor demand, job creation, productivity growth, new tasks, manufacturing employment

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