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The Skill Content of Recent Technological Change: An Empirical Exploration

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  • David H. Autor
  • Frank Levy
  • Richard J. Murnane

Abstract

We apply an understanding of what computers do -- the execution of procedural or rules-based logic -- to study how computer technology alters job skill demands. We contend that computer capital (1) substitutes for a limited and well-defined set of human activities, those involving routine (repetitive) cognitive and manual tasks; and (2) complements activities involving non-routine problem solving and interactive tasks. Provided these tasks are imperfect substitutes, our model implies measurable changes in the task content of employment, which we explore using representative data on job task requirements over 1960 -- 1998. Computerization is associated with declining relative industry demand for routine manual and cognitive tasks and increased relative demand for non-routine cognitive tasks. Shifts are evident within detailed industries, within detailed occupations, and within education groups within industries. Translating observed task shifts into educational demands, the sum of within-industry and within-occupation task changes explains thirty to forty percent of the observed relative demand shift favoring college versus non-college labor during 1970 to 1998, with the largest impact felt after 1980. Changes in task content within nominally identical occupations explain more than half of the overall demand shift induced by computerization.

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  • David H. Autor & Frank Levy & Richard J. Murnane, 2001. "The Skill Content of Recent Technological Change: An Empirical Exploration," NBER Working Papers 8337, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:8337
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    as
    1. Kevin M. Murphy & Finis Welch, 1992. "The Structure of Wages," The Quarterly Journal of Economics, Oxford University Press, vol. 107(1), pages 285-326.
    2. Lindbeck, Assar & Snower, Dennis J, 2000. "Multitask Learning and the Reorganization of Work: From Tayloristic to Holistic Organization," Journal of Labor Economics, University of Chicago Press, vol. 18(3), pages 353-376, July.
    3. Jorgenson, D.W. & Stiroh, K., 1994. "Computers abd Growth," Harvard Institute of Economic Research Working Papers 1707, Harvard - Institute of Economic Research.
    4. Borghans, Lex & ter Weel, Bas, 2007. "The diffusion of computers and the distribution of wages," European Economic Review, Elsevier, vol. 51(3), pages 715-748, April.
    5. Francesco Caselli, 1999. "Technological Revolutions," American Economic Review, American Economic Association, vol. 89(1), pages 78-102, March.
    6. Surendra Gera & Wulong Gu & Zhengxi Lin, 2001. "Technology and the demand for skills in Canada: an industry-level analysis," Canadian Journal of Economics, Canadian Economics Association, vol. 34(1), pages 132-148, February.
    7. Daron Acemoglu, 1998. "Why Do New Technologies Complement Skills? Directed Technical Change and Wage Inequality," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1055-1089.
    8. Eli Berman & John Bound & Zvi Griliches, 1994. "Changes in the Demand for Skilled Labor within U. S. Manufacturing: Evidence from the Annual Survey of Manufactures," The Quarterly Journal of Economics, Oxford University Press, vol. 109(2), pages 367-397.
    9. William D. Nordhaus, 2001. "The Progress of Computing," Cowles Foundation Discussion Papers 1324, Cowles Foundation for Research in Economics, Yale University.
    10. Levy, Frank & Murnane, Richard J, 1996. "With What Skills Are Computers a Complement?," American Economic Review, American Economic Association, vol. 86(2), pages 258-262, May.
    11. Daron Acemoglu, 1999. "Changes in Unemployment and Wage Inequality: An Alternative Theory and Some Evidence," American Economic Review, American Economic Association, vol. 89(5), pages 1259-1278, December.
    12. James Heckman & Lance Lochner & Christopher Taber, 1998. "Explaining Rising Wage Inequality: Explanations With A Dynamic General Equilibrium Model of Labor Earnings With Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 1(1), pages 1-58, January.
    13. Chinhui Juhn, 1999. "Wage Inequality and Demand for Skill: Evidence from Five Decades," ILR Review, Cornell University, ILR School, vol. 52(3), pages 424-443, April.
    14. Erik Brynjolfsson & Lorin M. Hitt, 2000. "Beyond Computation: Information Technology, Organizational Transformation and Business Performance," Journal of Economic Perspectives, American Economic Association, vol. 14(4), pages 23-48, Fall.
    15. Daron Acemoglu, 2002. "Technical Change, Inequality, and the Labor Market," Journal of Economic Literature, American Economic Association, vol. 40(1), pages 7-72, March.
    16. Berndt, Ernst R. & Morrison, Catherine J., 1995. "High-tech capital formation and economic performance in U.S. manufacturing industries An exploratory analysis," Journal of Econometrics, Elsevier, vol. 65(1), pages 9-43, January.
    17. Levy, Frank & Murnane, Richard J, 1992. "U.S. Earnings Levels and Earnings Inequality: A Review of Recent Trends and Proposed Explanations," Journal of Economic Literature, American Economic Association, vol. 30(3), pages 1333-1381, September.
    18. Stephen Machin & John Van Reenen, 1998. "Technology and Changes in Skill Structure: Evidence from Seven OECD Countries," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1215-1244.
    19. David Thesmar & Mathias Thoenig, 2000. "Creative Destruction and Firm Organization Choice," The Quarterly Journal of Economics, Oxford University Press, vol. 115(4), pages 1201-1237.
    20. 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.
    21. Borghans,L. & Weel,B.,ter, 2001. "What happens when agent T gets a computer?," ROA Research Memorandum 004, Maastricht University, Research Centre for Education and the Labour Market (ROA).
    22. Timothy F. Bresnahan & Erik Brynjolfsson & Lorin M. Hitt, 2002. "Information Technology, Workplace Organization, and the Demand for Skilled Labor: Firm-Level Evidence," The Quarterly Journal of Economics, Oxford University Press, vol. 117(1), pages 339-376.
    23. Claudia Goldin & Lawrence F. Katz, 1998. "The Origins of Technology-Skill Complementarity," The Quarterly Journal of Economics, Oxford University Press, vol. 113(3), pages 693-732.
    24. Ingram, Beth F. & Neumann, George R., 2006. "The returns to skill," Labour Economics, Elsevier, vol. 13(1), pages 35-59, February.
    25. repec:fth:prinin:338 is not listed on IDEAS
    26. Eli Bekman & John Bound & Stephen Machin, 1998. "Implications of Skill-Biased Technological Change: International Evidence," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1245-1279.
    27. Dixit, Avinash K & Stiglitz, Joseph E, 1977. "Monopolistic Competition and Optimum Product Diversity," American Economic Review, American Economic Association, vol. 67(3), pages 297-308, June.
    28. Eve Caroli & John Van Reenen, 2001. "Skill-Biased Organizational Change? Evidence from A Panel of British and French Establishments," The Quarterly Journal of Economics, Oxford University Press, vol. 116(4), pages 1449-1492.
    29. Katz, Lawrence F. & Autor, David H., 1999. "Changes in the wage structure and earnings inequality," Handbook of Labor Economics,in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 26, pages 1463-1555 Elsevier.
    30. Ann P. Bartel & Nachum Sicherman, 1999. "Technological Change and Wages: An Interindustry Analysis," Journal of Political Economy, University of Chicago Press, vol. 107(2), pages 285-325, April.
    31. George E. Johnson, 1997. "Changes in Earnings Inequality: The Role of Demand Shifts," Journal of Economic Perspectives, American Economic Association, vol. 11(2), pages 41-54, Spring.
    32. Kevin M. Murphy & W. Craig Riddell & Paul M. Romer, 1998. "Wages, Skills, and Technology in the United States and Canada," NBER Working Papers 6638, National Bureau of Economic Research, Inc.
    33. Jin Huem Park, 1994. "Estimation of Sheepskin Effects and Returns to Schooling Using he Old and the New CPS Measures of Educational Attainment," Working Papers 717, Princeton University, Department of Economics, Industrial Relations Section..
    34. Juhn, Chinhui & Murphy, Kevin M & Pierce, Brooks, 1993. "Wage Inequality and the Rise in Returns to Skill," Journal of Political Economy, University of Chicago Press, vol. 101(3), pages 410-442, June.
    35. Markus Mobius & Raphael Schoenle, 2006. "The Evolution of Work," NBER Working Papers 12694, National Bureau of Economic Research, Inc.
    36. David Card & John E. DiNardo, 2002. "Skill-Biased Technological Change and Rising Wage Inequality: Some Problems and Puzzles," Journal of Labor Economics, University of Chicago Press, vol. 20(4), pages 733-783, October.
    37. Griliches, Zvi, 1969. "Capital-Skill Complementarity," The Review of Economics and Statistics, MIT Press, vol. 51(4), pages 465-468, November.
    38. Michael J. Handel, 2000. "Trends in Direct Measures of Job Skill Requirements," Economics Working Paper Archive wp_301, Levy Economics Institute.
    39. Jin Huem Park, 1994. "Estimation of Sheepskin Effects and Returns to Schooling Using he Old and the New CPS Measures of Educational Attainment," Working Papers 717, Princeton University, Department of Economics, Industrial Relations Section..
    40. Mark Doms & Timothy Dunne & Kenneth R. Troske, 1997. "Workers, Wages, and Technology," The Quarterly Journal of Economics, Oxford University Press, vol. 112(1), pages 253-290.
    41. Finis Welch, 2000. "Growth in Women's Relative Wages and in Inequality among Men: One Phenomenon or Two?," American Economic Review, American Economic Association, vol. 90(2), pages 444-449, May.
    42. Bartel, Ann P & Lichtenberg, Frank R, 1987. "The Comparative Advantage of Educated Workers in Implementing New Technology," The Review of Economics and Statistics, MIT Press, vol. 69(1), pages 1-11, February.
    43. repec:dau:papers:123456789/10093 is not listed on IDEAS
    44. David H. Autor & Lawrence F. Katz & Alan B. Krueger, 1998. "Computing Inequality: Have Computers Changed the Labor Market?," The Quarterly Journal of Economics, Oxford University Press, vol. 113(4), pages 1169-1213.
    45. Marianne Bertrand & Esther Duflo & Sendhil Mullainathan, 2004. "How Much Should We Trust Differences-In-Differences Estimates?," The Quarterly Journal of Economics, Oxford University Press, vol. 119(1), pages 249-275.
    46. Richard R. Nelson & Edmond S. Phelps, 1965. "Investment in Humans, Technological Diffusion and Economic Growth," Cowles Foundation Discussion Papers 189, Cowles Foundation for Research in Economics, Yale University.
    47. Bresnahan, Timothy F, 1999. "Computerisation and Wage Dispersion: An Analytical Reinterpretation," Economic Journal, Royal Economic Society, vol. 109(456), pages 390-415, June.
    48. A. D. Roy, 1951. "Some Thoughts On The Distribution Of Earnings," Oxford Economic Papers, Oxford University Press, vol. 3(2), pages 135-146.
    49. Kevin J. Stiroh & Dale W. Jorgenson, 1999. "Information Technology and Growth," American Economic Review, American Economic Association, vol. 89(2), pages 109-115, May.
    50. Eli Berman & John Bound & Zvi Griliches, 1993. "Changes in the Demand for Skilled Labor within U.S. Manufacturing Industries: Evidence from the Annual Survey of Manufacturing," NBER Working Papers 4255, National Bureau of Economic Research, Inc.
    51. Jaeger, David A, 1997. "Reconciling the Old and New Census Bureau Education Questions: Recommendations for Researchers," Journal of Business & Economic Statistics, American Statistical Association, vol. 15(3), pages 300-309, July.
    52. Welch, F, 1970. "Education in Production," Journal of Political Economy, University of Chicago Press, vol. 78(1), pages 35-59, Jan.-Feb..
    53. Luis Garicano, 2000. "Hierarchies and the Organization of Knowledge in Production," Journal of Political Economy, University of Chicago Press, vol. 108(5), pages 874-904, October.
    54. Casey Ichniowski & Kathryn Shaw, 2003. "Beyond Incentive Pay: Insiders' Estimates of the Value of Complementary Human Resource Management Practices," Journal of Economic Perspectives, American Economic Association, vol. 17(1), pages 155-180, Winter.
    55. David H. Autor & Frank Levy & Richard J. Murnane, 2002. "Upstairs, Downstairs: Computers and Skills on Two Floors of a Large Bank," ILR Review, Cornell University, ILR School, vol. 55(3), pages 432-447, April.
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    JEL classification:

    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand

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