IDEAS home Printed from https://ideas.repec.org/a/eee/moneco/v152y2025ics0304393225000534.html
   My bibliography  Save this article

Elasticity of substitution between robots and workers: Theory and evidence from Japanese robot price data

Author

Listed:
  • Adachi, Daisuke

Abstract

This paper examines the wage effects of the increased use of industrial robots, focusing on their role in specific tasks and international trade. I construct a novel dataset by tracking shocks to the cost of acquiring robots from Japan, termed the Japan Robot Shock (JRS), and analyze these shocks across different occupations that have adopted robots. A general equilibrium model incorporating robot automation in a large open economy is developed, and a model-implied optimal instrumental variable of the JRS is constructed to address the identification challenges posed by the correlation between automation shocks and the JRS. The study finds that the elasticity of substitution (EoS) between robots and labor is heterogeneous across occupations, reaching up to 3 in production and material moving occupations, which is significantly higher than the EoS between other capital goods and labor. These findings underscore the importance of targeted policy to help workers adapt and mitigate potential wage pressures.

Suggested Citation

  • Adachi, Daisuke, 2025. "Elasticity of substitution between robots and workers: Theory and evidence from Japanese robot price data," Journal of Monetary Economics, Elsevier, vol. 152(C).
  • Handle: RePEc:eee:moneco:v:152:y:2025:i:c:s0304393225000534
    DOI: 10.1016/j.jmoneco.2025.103782
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0304393225000534
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.jmoneco.2025.103782?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Jerry Hausman & Gregory Leonard & J. Douglas Zona, 1994. "Competitive Analysis with Differentiated Products," Annals of Economics and Statistics, GENES, issue 34, pages 143-157.
    2. repec:adr:anecst:y:1994:i:34:p:06 is not listed on IDEAS
    3. Simonovska, Ina & Waugh, Michael E., 2014. "The elasticity of trade: Estimates and evidence," Journal of International Economics, Elsevier, vol. 92(1), pages 34-50.
    4. Maya Eden & Paul Gaggl, 2018. "On the Welfare Implications of Automation," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 29, pages 15-43, July.
    5. Brent Neiman, 2014. "The Global Decline of the Labor Share," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 129(1), pages 61-103.
    6. Ezra Oberfield & Devesh Raval, 2021. "Micro Data and Macro Technology," Econometrica, Econometric Society, vol. 89(2), pages 703-732, March.
    7. Daisuke Adachi & Daiji Kawaguchi & Yukiko U. Saito, 2024. "Robots and Employment: Evidence from Japan, 1978–2017," Journal of Labor Economics, University of Chicago Press, vol. 42(2), pages 591-634.
    8. Montobbio, Fabio & Staccioli, Jacopo & Virgillito, Maria Enrica & Vivarelli, Marco, 2022. "Robots and the origin of their labour-saving impact," Technological Forecasting and Social Change, Elsevier, vol. 174(C).
    9. Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-1311, July.
    10. Amit Khandelwal, 2010. "The Long and Short (of) Quality Ladders," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 77(4), pages 1450-1476.
    11. Daron Acemoglu & Pascual Restrepo, 2020. "Robots and Jobs: Evidence from US Labor Markets," Journal of Political Economy, University of Chicago Press, vol. 128(6), pages 2188-2244.
    12. Russell W. Cooper & John C. Haltiwanger, 2006. "On the Nature of Capital Adjustment Costs," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 73(3), pages 611-633.
    13. David H. Autor & David Dorn & Gordon H. Hanson, 2013. "The China Syndrome: Local Labor Market Effects of Import Competition in the United States," American Economic Review, American Economic Association, vol. 103(6), pages 2121-2168, October.
    14. Daron Acemoglu & Pascual Restrepo, 2018. "The Race between Man and Machine: Implications of Technology for Growth, Factor Shares, and Employment," American Economic Review, American Economic Association, vol. 108(6), pages 1488-1542, June.
    15. Lorenzo Caliendo & Maximiliano Dvorkin & Fernando Parro, 2019. "Trade and Labor Market Dynamics: General Equilibrium Analysis of the China Trade Shock," Econometrica, Econometric Society, vol. 87(3), pages 741-835, May.
    16. Julieta Caunedo & David Jaume & Elisa Keller, 2023. "Occupational Exposure to Capital-Embodied Technical Change," American Economic Review, American Economic Association, vol. 113(6), pages 1642-1685, June.
    17. Jaimovich, Nir & Saporta-Eksten, Itay & Siu, Henry & Yedid-Levi, Yaniv, 2021. "The macroeconomics of automation: Data, theory, and policy analysis," Journal of Monetary Economics, Elsevier, vol. 122(C), pages 1-16.
    18. Benny Kleinman & Ernest Liu & Stephen J. Redding, 2024. "International Friends and Enemies," American Economic Journal: Macroeconomics, American Economic Association, vol. 16(4), pages 350-385, October.
    19. Acemoglu, Daron & Autor, David, 2011. "Skills, Tasks and Technologies: Implications for Employment and Earnings," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 4, chapter 12, pages 1043-1171, Elsevier.
    20. Dauth, Wolfgang & Findeisen, Sebastian & Südekum, Jens & Wößner, Nicole, 2017. "German robots - the impact of industrial robots on workers," IAB-Discussion Paper 201730, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    21. Lorenzo Caliendo & Fernando Parro, 2015. "Estimates of the Trade and Welfare Effects of NAFTA," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 82(1), pages 1-44.
    22. Gustavo de Souza & Haishi Li, 2023. "Robots, Tools, and Jobs: Evidence from Brazilian Labor Markets," Working Paper Series WP 2023-42, Federal Reserve Bank of Chicago.
    23. Jonathan Eaton & Samuel Kortum, 2002. "Technology, Geography, and Trade," Econometrica, Econometric Society, vol. 70(5), pages 1741-1779, September.
    24. Berthold Herrendorf & Christopher Herrington & Ákos Valentinyi, 2015. "Sectoral Technology and Structural Transformation," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(4), pages 104-133, October.
    25. Artuc, Erhan & Bastos, Paulo & Rijkers, Bob, 2023. "Robots, tasks, and trade," Journal of International Economics, Elsevier, vol. 145(C).
    26. Südekum, Jens & Dauth, Wolfgang & Findeisen, Sebastian & Woessner, Nicole, 2017. "German Robots – The Impact of Industrial Robots on Workers," CEPR Discussion Papers 12306, C.E.P.R. Discussion Papers.
    27. Gustavo de Souza & Haishi Li, 2023. "Robots, Tools, and Jobs: Evidence from Brazilian Labor Markets," CESifo Working Paper Series 10813, CESifo.
    28. Ariel Burstein & Eduardo Morales & Jonathan Vogel, 2019. "Changes in Between-Group Inequality: Computers, Occupations, and International Trade," American Economic Journal: Macroeconomics, American Economic Association, vol. 11(2), pages 348-400, April.
    29. Joachim Hubmer, 2023. "The Race Between Preferences and Technology," Econometrica, Econometric Society, vol. 91(1), pages 227-261, January.
    30. Galle, Simon & Lorentzen, Linnea, 2024. "The unequal effects of trade and automation across local labor markets," Journal of International Economics, Elsevier, vol. 150(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Daisuke ADACHI, 2024. "Robots and Wage Polarization: The effects of robot capital by occupation," Discussion papers 24066, Research Institute of Economy, Trade and Industry (RIETI).
    2. Galle, Simon & Lorentzen, Linnea, 2024. "The unequal effects of trade and automation across local labor markets," Journal of International Economics, Elsevier, vol. 150(C).
    3. Gregory, Terry & Salomons, Anna & Zierahn, Ulrich, 2016. "Racing With or Against the Machine? Evidence from Europe," VfS Annual Conference 2016 (Augsburg): Demographic Change 145843, Verein für Socialpolitik / German Economic Association.
    4. Lee, Eunhee, 2020. "Trade, inequality, and the endogenous sorting ofheterogeneous workers," Journal of International Economics, Elsevier, vol. 125(C).
    5. Borusyak, Kirill & Jaravel, Xavier, 2024. "Are trade wars class wars? The importance of trade-induced horizontal inequality," Journal of International Economics, Elsevier, vol. 150(C).
    6. Toon Van Overbeke, 2023. "Conflict or cooperation? Exploring the relationship between cooperative institutions and robotisation," British Journal of Industrial Relations, London School of Economics, vol. 61(3), pages 550-573, September.
    7. Rodrigo Adão & Costas Arkolakis & Federico Esposito, 2019. "General Equilibrium Effects in Space: Theory and Measurement," NBER Working Papers 25544, National Bureau of Economic Research, Inc.
    8. Jacobs, Arthur, 2023. "Capital-augmenting technical change in the context of untapped automation opportunities," Mathematical Social Sciences, Elsevier, vol. 123(C), pages 155-166.
    9. vom Lehn, Christian, 2018. "Understanding the decline in the U.S. labor share: Evidence from occupational tasks," European Economic Review, Elsevier, vol. 108(C), pages 191-220.
    10. Kudoh, Noritaka & Miyamoto, Hiroaki, 2025. "Robots, AI, and unemployment," Journal of Economic Dynamics and Control, Elsevier, vol. 174(C).
    11. Gallipoli, Giovanni & Makridis, Christos A., 2018. "Structural transformation and the rise of information technology," Journal of Monetary Economics, Elsevier, vol. 97(C), pages 91-110.
    12. Stemmler, Henry, 2023. "Automated Deindustrialization: How Global Robotization Affects Emerging Economies—Evidence from Brazil," World Development, Elsevier, vol. 171(C).
    13. Stähler, Nikolai, 2021. "The Impact of Aging and Automation on the Macroeconomy and Inequality," Journal of Macroeconomics, Elsevier, vol. 67(C).
    14. Rachel Ngai & Orhun Sevinc, 2025. "A Multisector Perspective on Wage Stagnation," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 56, April.
    15. Shohei Momoda & Takayuki Ogawa & Ryosuke Shimizu, 2025. "Automation and asymmetric international spillovers of technological shocks," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 58(2), pages 642-689, May.
    16. Caselli, Mauro & Fracasso, Andrea & Scicchitano, Sergio & Traverso, Silvio & Tundis, Enrico, 2021. "Stop worrying and love the robot: An activity-based approach to assess the impact of robotization on employment dynamics," GLO Discussion Paper Series 802, Global Labor Organization (GLO).
    17. E. Mark Curtis & Daniel G. Garrett & Eric C. Ohrn & Kevin A. Roberts & Juan Carlos Suárez Serrato, 2021. "Capital Investment and Labor Demand," NBER Working Papers 29485, National Bureau of Economic Research, Inc.
    18. Maximiliano Dvorkin & Alexander Monge-Naranjo, 2019. "Occupation Mobility, Human Capital and the Aggregate Consequences of Task-Biased Innovations," Working Papers 2019-064, Human Capital and Economic Opportunity Working Group.
    19. Artuc, Erhan & Bastos, Paulo & Rijkers, Bob, 2023. "Robots, tasks, and trade," Journal of International Economics, Elsevier, vol. 145(C).
    20. Arthur Jacobs, 2023. "Capitalist-Worker Wealth Distribution in a Task-Based Model of Automation," Working Papers of Faculty of Economics and Business Administration, Ghent University, Belgium 23/1064, Ghent University, Faculty of Economics and Business Administration.

    More about this item

    Keywords

    ;
    ;
    ;

    JEL classification:

    • J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J62 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Job, Occupational and Intergenerational Mobility; Promotion
    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
    • F16 - International Economics - - Trade - - - Trade and Labor Market Interactions
    • F66 - International Economics - - Economic Impacts of Globalization - - - Labor
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:moneco:v:152:y:2025:i:c:s0304393225000534. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/inca/505566 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.