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Computing Inequality: Have Computers Changed the Labor Market?

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Listed:
  • David H. Autor

    (Harvard University)

  • Lawrence F. Katz

    (Harvard University and NBER)

  • Alan B. Krueger

    (Princeton University and NBER)

Abstract

This paper examines the effect of technological change and other factors on the relative demand for workers with different education levels and on the recent growth of U.S. educational wage differentials. A simple supply-demand framework is used to interpret changes in the relative quantities, wages, and wage bill shares of workers by education in the aggregate U.S. labor market in each decade since 1940 and over the 1990 to 1995 period. The results suggest that the relative demand for college graduates grew more rapidly on average during the past 25 years (1970-95) than during the previous three decades (1940-70). The increased rate of growth of relative demand for college graduates beginning in the 1970s did not lead to an increase in the college/high school wage differential until the 1980s because the growth in the supply of college graduates increased even more sharply in the 1970s before returning to historical levels in the 1980s. The acceleration in demand shifts for more-skilled workers in the 1970s and 1980s relative to the 1960s is entirely accounted for by an increase in within- industry changes in skill utilization rather than between-industry employment shifts. Industries with large increases in the rate of skill upgrading in the 1970s and 1980s versus the 1960s are those with greater growth in employee computer usage, more computer capital per worker, and larger shares of computer investment as a share of total investment. The results suggest that the spread of computer technology may "explain" as much as 30 to 50 percent of the increase in the rate of growth of the relative demand for more-skilled workers since 1970.

Suggested Citation

  • David H. Autor & Lawrence F. Katz & Alan B. Krueger, 1997. "Computing Inequality: Have Computers Changed the Labor Market?," Working Papers 756, Princeton University, Department of Economics, Industrial Relations Section..
  • Handle: RePEc:pri:indrel:377
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    1. Kevin M. Murphy & Finis Welch, 1992. "The Structure of Wages," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(1), pages 285-326.
    2. Allen, Steven G, 2001. "Technology and the Wage Structure," Journal of Labor Economics, University of Chicago Press, vol. 19(2), pages 440-483, April.
    3. Claudia Goldin & Robert A. Margo, 1992. "The Great Compression: The Wage Structure in the United States at Mid-Century," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(1), pages 1-34.
    4. repec:ucp:bknber:9780226304557 is not listed on IDEAS
    5. Eric J. Bartelsman & Wayne Gray, 1996. "The NBER Manufacturing Productivity Database," NBER Technical Working Papers 0205, National Bureau of Economic Research, Inc.
    6. DiNardo, John & Fortin, Nicole M & Lemieux, Thomas, 1996. "Labor Market Institutions and the Distribution of Wages, 1973-1992: A Semiparametric Approach," Econometrica, Econometric Society, vol. 64(5), pages 1001-1044, September.
    7. Goldin, Claudia & Katz, Lawrence F, 1996. "Technology, Skill, and the Wage Structure: Insights from the Past," American Economic Review, American Economic Association, vol. 86(2), pages 252-257, May.
    8. Alan B. Krueger, 1993. "How Computers Have Changed the Wage Structure: Evidence from Microdata, 1984–1989," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 108(1), pages 33-60.
    9. 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.
    10. 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, President and Fellows of Harvard College, vol. 109(2), pages 367-397.
    11. 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.
    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. Feenstra, Robert C & Hanson, Gordon H, 1996. "Globalization, Outsourcing, and Wage Inequality," American Economic Review, American Economic Association, vol. 86(2), pages 240-245, May.
    14. Greenwood, Jeremy & Yorukoglu, Mehmet, 1997. "1974," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 46(1), pages 49-95, June.
      • Greenwood, J. & Yorukoglu, M., 1996. "1974," RCER Working Papers 429, University of Rochester - Center for Economic Research (RCER).
    15. Eli Bekman & John Bound & Stephen Machin, 1998. "Implications of Skill-Biased Technological Change: International Evidence," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(4), pages 1245-1279.
    16. Dunne, Timothy & Haltiwanger, John & Troske, Kenneth R., 1997. "Technology and jobs: secular changes and cyclical dynamics," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 46(1), pages 107-178, June.
    17. 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.
    18. Stephen Machin & John Van Reenen, 1998. "Technology and Changes in Skill Structure: Evidence from Seven OECD Countries," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(4), pages 1215-1244.
    19. Machin, Steve & Van Reenen, John, 1996. "Technology and Changes in Skill Structure: Evidence from an International Panel of Industries," CEPR Discussion Papers 1434, C.E.P.R. Discussion Papers.
    20. Claudia Goldin & Lawrence F. Katz, 1998. "The Origins of Technology-Skill Complementarity," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(3), pages 693-732.
    21. Bernard, Andrew B. & Jensen, J. Bradford, 1997. "Exporters, skill upgrading, and the wage gap," Journal of International Economics, Elsevier, vol. 42(1-2), pages 3-31, February.
    22. Freeman, Richard B., 1987. "Demand for education," Handbook of Labor Economics, in: O. Ashenfelter & R. Layard (ed.), Handbook of Labor Economics, edition 1, volume 1, chapter 6, pages 357-386, Elsevier.
    23. Robert J. Gordon, 1990. "The Measurement of Durable Goods Prices," NBER Books, National Bureau of Economic Research, Inc, number gord90-1.
    24. 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.
    25. John E. DiNardo & Jörn-Steffen Pischke, 1997. "The Returns to Computer Use Revisited: Have Pencils Changed the Wage Structure Too?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 112(1), pages 291-303.
    26. 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..
    27. 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.
    28. David Autor & Lawrence Katz & Alan Krueger, 1997. "Computing Inequality: Have Computers Changed the Labor Market?," Working Papers 756, Princeton University, Department of Economics, Industrial Relations Section..
    29. Wolff, E.N., 1996. "The Growth of Information Workers in the U.S. Economy, 1950-1990: The Role of Technological Change, Computerization, and Structural Change," Working Papers 96-41, C.V. Starr Center for Applied Economics, New York University.
    30. George J. Borjas & Richard B. Freeman & Lawrence F. Katz, 2021. "How Much Do Immigration and Trade Affect Labor Market Outcomes?," World Scientific Book Chapters, in: Foundational Essays in Immigration Economics, chapter 8, pages 163-234, World Scientific Publishing Co. Pte. Ltd..
    31. Finis Welch, 1969. "Linear Synthesis of Skill Distribution," Journal of Human Resources, University of Wisconsin Press, vol. 4(3), pages 311-327.
    32. Robert C. Feenstra, 1996. "U.S. Imports, 1972-1994: Data and Concordances," NBER Working Papers 5515, 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. Mark Doms & Timothy Dunne & Kenneth R. Troske, 1997. "Workers, Wages, and Technology," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 112(1), pages 253-290.
    35. 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.
    36. George J. Borjas & Valerie A. Ramey, 1995. "Foreign Competition, Market Power, and Wage Inequality," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 110(4), pages 1075-1110.
    37. David H. Autor & Lawrence F. Katz & Alan B. Krueger, 1998. "Computing Inequality: Have Computers Changed the Labor Market?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(4), pages 1169-1213.
    38. Richard B. Freeman, 1996. "Labor market institutions and earnings inequality," New England Economic Review, Federal Reserve Bank of Boston, issue May, pages 157-172.
    39. Wood, Adrian, 1998. "Globalisation and the Rise in Labour Market Inequalities," Economic Journal, Royal Economic Society, vol. 108(450), pages 1463-1482, September.
    40. Bresnahan, Timothy F, 1999. "Computerisation and Wage Dispersion: An Analytical Reinterpretation," Economic Journal, Royal Economic Society, vol. 109(456), pages 390-415, June.
    41. Robert C. Feenstra, 1997. "U.S. Exports, 1972-1994: With State Exports and Other U.S. Data," NBER Working Papers 5990, National Bureau of Economic Research, Inc.
    42. Ernst R. Berndt & Catherine J. Morrison & Larry S. Rosenblum, 1992. "High-Tech Capital Formation and Labor Composition in U.S. Manufacturing Industries: An Exploratory Analysis," NBER Working Papers 4010, National Bureau of Economic Research, Inc.
    43. 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.
    44. Chinhui Juhn, 1994. "Wage Inequality and Industrial Change: Evidence from Five Decades," NBER Working Papers 4684, National Bureau of Economic Research, Inc.
    45. Steve J. Davis & John Haltiwanger, 1991. "Wage Dispersion Between and Within U.S. Manufacturing Plants, 1963-1986," NBER Working Papers 3722, National Bureau of Economic Research, Inc.
    46. 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.
    47. Katz, Lawrence F. & Revenga, Ana L., 1989. "Changes in the structure of wages: The United States vs Japan," Journal of the Japanese and International Economies, Elsevier, vol. 3(4), pages 522-553, December.
    48. Bound, John & Johnson, George, 1992. "Changes in the Structure of Wages in the 1980's: An Evaluation of Alternative Explanations," American Economic Review, American Economic Association, vol. 82(3), pages 371-392, June.
    49. Brian D. Bell, "undated". "Skill-Biased Technical Change and Wages: Evidence from a Longitudinal Data Se," Economics Papers W25., Economics Group, Nuffield College, University of Oxford.
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    More about this item

    Keywords

    skill demands; wage differentials; technology;
    All these keywords.

    JEL classification:

    • E51 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Money Supply; Credit; Money Multipliers
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy

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