IDEAS home Printed from https://ideas.repec.org/p/qmw/qmwecw/888.html
   My bibliography  Save this paper

Horizontal and Vertical Polarization: Task-Specific Technological Change in a Multi-Sector Economy

Author

Listed:
  • Sang Yoon (Tim) Lee

    (Queen Mary University of London and CEPR)

  • Yongseok Shin

    (Washington University in St. Louis, Federal Reserve Bank of St. Louis and NBER)

Abstract

We construct a multi-layer model of skills, occupations, and sectors. Technological progress among middle-skill occupations raises the employment shares and relative wages of lower- and higher-skill occupations (horizontal polarization), and those of managers over workers (vertical polarization). Polarization is faster within sectors that rely more on middle-skill workers, endogenously boosting their TFP. This shrinks their employment and output shares (structural change) if sector outputs are complementary. We empirically validate our theoretical predictions, and show that task-specific technological progress, which was faster for routine-manual tasks and slower for interpersonal tasks, played a major role in transforming the U.S. economy since 1980.

Suggested Citation

  • Sang Yoon (Tim) Lee & Yongseok Shin, 2019. "Horizontal and Vertical Polarization: Task-Specific Technological Change in a Multi-Sector Economy," Working Papers 888, Queen Mary University of London, School of Economics and Finance.
    • Handle: RePEc:qmw:qmwecw:888
    as

    Download full text from publisher

    File URL: https://www.qmul.ac.uk/sef/media/econ/research/workingpapers/2019/wp888.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Xavier Gabaix & Augustin Landier, 2008. "Why has CEO Pay Increased So Much?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 123(1), pages 49-100.
    2. Lawrence F. Katz & Kevin M. Murphy, 1992. "Changes in Relative Wages, 1963–1987: Supply and Demand Factors," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(1), pages 35-78.
    3. Marko Tervio, 2008. "The Difference That CEOs Make: An Assignment Model Approach," American Economic Review, American Economic Association, vol. 98(3), pages 642-668, June.
    4. Zsófia L. Bárány & Christian Siegel, 2018. "Job Polarization and Structural Change," American Economic Journal: Macroeconomics, American Economic Association, vol. 10(1), pages 57-89, January.
    5. Francisco J Buera & Joseph P Kaboski & Richard Rogerson & Juan I Vizcaino, 2022. "Skill-Biased Structural Change," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 89(2), pages 592-625.
    6. Lorenzo Caliendo & Ferdinando Monte & Esteban Rossi-Hansberg, 2015. "The Anatomy of French Production Hierarchies," Journal of Political Economy, University of Chicago Press, vol. 123(4), pages 809-852.
    7. Maarten Goos & Alan Manning & Anna Salomons, 2014. "Explaining Job Polarization: Routine-Biased Technological Change and Offshoring," American Economic Review, American Economic Association, vol. 104(8), pages 2509-2526, August.
    8. David H. Autor & Frank Levy & Richard J. Murnane, 2003. "The skill content of recent technological change: an empirical exploration," Proceedings, Federal Reserve Bank of San Francisco, issue Nov.
    9. David H. Autor & David Dorn, 2013. "The Growth of Low-Skill Service Jobs and the Polarization of the US Labor Market," American Economic Review, American Economic Association, vol. 103(5), pages 1553-1597, August.
    10. Arnaud Costinot & Jonathan Vogel, 2010. "Matching and Inequality in the World Economy," Journal of Political Economy, University of Chicago Press, vol. 118(4), pages 747-786, August.
    11. L. Rachel Ngai & Christopher A. Pissarides, 2007. "Structural Change in a Multisector Model of Growth," American Economic Review, American Economic Association, vol. 97(1), pages 429-443, March.
    12. Daron Acemoglu & Veronica Guerrieri, 2008. "Capital Deepening and Nonbalanced Economic Growth," Journal of Political Economy, University of Chicago Press, vol. 116(3), pages 467-498, June.
    13. Francisco J. Buera & Joseph P. Kaboski, 2012. "The Rise of the Service Economy," American Economic Review, American Economic Association, vol. 102(6), pages 2540-2569, October.
    14. Ariel Burstein & Eduardo Morales & Jonathan Vogel, 2015. "Accounting for Changes in Between-Group Inequality," NBER Working Papers 20855, National Bureau of Economic Research, Inc.
    15. Robert E. Lucas Jr., 1978. "On the Size Distribution of Business Firms," Bell Journal of Economics, The RAND Corporation, vol. 9(2), pages 508-523, Autumn.
    16. Georg Duernecker & Berthold Herrendorf, 2022. "Structural Transformation of Occupation Employment," Economica, London School of Economics and Political Science, vol. 89(356), pages 789-814, October.
    17. Herrendorf, Berthold & Rogerson, Richard & Valentinyi, Ákos, 2014. "Growth and Structural Transformation," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 2, chapter 6, pages 855-941, Elsevier.
    18. David H. Autor & Lawrence F. Katz & Melissa S. Kearney, 2006. "The Polarization of the U.S. Labor Market," American Economic Review, American Economic Association, vol. 96(2), pages 189-194, May.
    19. Sang Yoon (Tim) Lee & Yongseok Shin & Donghoon Lee, 2015. "The Option Value of Human Capital: Higher Education and Wage Inequality," NBER Working Papers 21724, National Bureau of Economic Research, Inc.
    20. 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.
    21. Nancy L Stokey, 2016. "Technology, Skill and the Wage Structure," 2016 Meeting Papers 750, Society for Economic Dynamics.
    22. 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.
    23. Peter B. Meyer & Anastasiya M. Osborne, 2005. "Proposed Category System for 1960-2000 Census Occupations," Working Papers 383, U.S. Bureau of Labor Statistics.
    24. Firpo, Sergio & Fortin, Nicole M. & Lemieux, Thomas, 2011. "Occupational Tasks and Changes in the Wage Structure," IZA Discussion Papers 5542, Institute of Labor Economics (IZA).
    25. Berthold Herrendorf & Richard Rogerson & ?kos Valentinyi, 2013. "Two Perspectives on Preferences and Structural Transformation," American Economic Review, American Economic Association, vol. 103(7), pages 2752-2789, December.
    26. Daron Acemoglu, 2002. "Technical Change, Inequality, and the Labor Market," Journal of Economic Literature, American Economic Association, vol. 40(1), pages 7-72, March.
    27. Nancy L. Stokey, 2016. "Technology, Skill and the Wage Structure," NBER Working Papers 22176, National Bureau of Economic Research, Inc.
    28. Luis Garicano & Esteban Rossi-Hansberg, 2006. "Organization and Inequality in a Knowledge Economy," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 121(4), pages 1383-1435.
    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. Yongseok Shin & Tim Lee, 2016. "Managing a Polarized Structural Change," 2016 Meeting Papers 1464, Society for Economic Dynamics.
    2. Zsofia Barany & Christian Siegel, 2021. "Engines of sectoral labor productivity growth," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 39, pages 304-343, January.
    3. 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.
    4. Bárány, Zsófia L. & Siegel, Christian, 2020. "Biased technological change and employment reallocation," Labour Economics, Elsevier, vol. 67(C).
    5. Cavenaile, Laurent, 2021. "Offshoring, computerization, labor market polarization and top income inequality," Journal of Macroeconomics, Elsevier, vol. 69(C).
    6. David Hémous & Morten Olsen, 2022. "The Rise of the Machines: Automation, Horizontal Innovation, and Income Inequality," American Economic Journal: Macroeconomics, American Economic Association, vol. 14(1), pages 179-223, January.
    7. Zsófia L. Bárány & Christian Siegel, 2018. "Job Polarization and Structural Change," American Economic Journal: Macroeconomics, American Economic Association, vol. 10(1), pages 57-89, January.
    8. Orhun Sevinc, 2017. "Skill-Biased Technical Change and Labor Market Polarization: The Role of Skill Heterogeneity Within Occupations," Discussion Papers 1728, Centre for Macroeconomics (CFM).
    9. Georg Duernecker & Berthold Herrendorf, 2022. "Structural Transformation of Occupation Employment," Economica, London School of Economics and Political Science, vol. 89(356), pages 789-814, October.
    10. Ariell Reshef, 2013. "Is Technological Change Biased Towards the Unskilled in Services? An Empirical Investigation," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 16(2), pages 312-331, April.
    11. repec:spo:wpmain:info:hdl:2441/4he5e8ba3929rhrgcti3so9af is not listed on IDEAS
    12. repec:hal:wpspec:info:hdl:2441/30j1vvprab87kpl0hore4b2sv1 is not listed on IDEAS
    13. 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.
    14. repec:hal:spmain:info:hdl:2441/4he5e8ba3929rhrgcti3so9af is not listed on IDEAS
    15. Zsofia Barany & Christian Siegel, 2015. "Job Polarization and Structural Change," Working Papers hal-03459762, HAL.
    16. Barany, Zsofia L. & Siegel, Christian, 2017. "Disentangling Occupation- and Sector-specific Technological Change," Economics Series 331, Institute for Advanced Studies.
    17. repec:hal:spmain:info:hdl:2441/7vl4otetog8c6aaomlbfjid6fp is not listed on IDEAS
    18. Ariell Reshef, 2013. "Is Technological Change Biased Towards the Unskilled in Services? An Empirical Investigation," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 16(2), pages 312-331, April.
    19. repec:spo:wpecon:info:hdl:2441/30j1vvprab87kpl0hore4b2sv1 is not listed on IDEAS
    20. Zsofia Barany & Christian Siegel, 2015. "Job Polarization and Structural Change," SciencePo Working papers hal-03459762, HAL.
    21. repec:spo:wpmain:info:hdl:2441/7vl4otetog8c6aaomlbfjid6fp is not listed on IDEAS
    22. repec:hal:spmain:info:hdl:2441/30j1vvprab87kpl0hore4b2sv1 is not listed on IDEAS
    23. Chen, Chaoran, 2020. "Capital-skill complementarity, sectoral labor productivity, and structural transformation," Journal of Economic Dynamics and Control, Elsevier, vol. 116(C).
    24. repec:spo:wpmain:info:hdl:2441/30j1vvprab87kpl0hore4b2sv1 is not listed on IDEAS
    25. David J. Deming, 2017. "The Growing Importance of Social Skills in the Labor Market," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 132(4), pages 1593-1640.
    26. Monte, Ferdinando, 2011. "Skill bias, trade, and wage dispersion," Journal of International Economics, Elsevier, vol. 83(2), pages 202-218, March.
    27. Pena, Werner & Siegel, Christian, 2023. "Routine-biased technical change, structure of employment, and cross-country income differences," CEPR Discussion Papers 18366, C.E.P.R. Discussion Papers.
    28. Cortes, Guido Matias & Salvatori, Andrea, 2019. "Delving into the demand side: Changes in workplace specialization and job polarization," Labour Economics, Elsevier, vol. 57(C), pages 164-176.

    More about this item

    Keywords

    job polarization; structural change; wage inequality;
    All these keywords.

    JEL classification:

    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • L16 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Industrial Organization and Macroeconomics; Macroeconomic Industrial Structure
    • O14 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Industrialization; Manufacturing and Service Industries; Choice of Technology
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

    NEP fields

    This paper has been announced in the following NEP Reports:

    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:qmw:qmwecw:888. 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: Nicholas Owen The email address of this maintainer does not seem to be valid anymore. Please ask Nicholas Owen to update the entry or send us the correct address (email available below). General contact details of provider: https://edirc.repec.org/data/deqmwuk.html .

    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.