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Advanced Technologies Adoption and Use by U.S. Firms: Evidence from the Annual Business Survey

Author

Listed:
  • Nikolas Zolas
  • Zachary Kroff
  • Erik Brynjolfsson
  • Kristina McElheran
  • David N. Beede
  • Cathy Buffington
  • Nathan Goldschlag
  • Lucia Foster
  • Emin Dinlersoz
Abstract
We introduce a new survey module intended to complement and expand research on the causes and consequences of advanced technology adoption. The 2018 Annual Business Survey (ABS), conducted by the Census Bureau in partnership with the National Center for Science and Engineering Statistics (NCSES), provides comprehensive and timely information on the diffusion among U.S. firms of advanced technologies including artificial intelligence (AI), cloud computing, robotics, and the digitization of business information. The 2018 ABS is a large, nationally representative sample of over 850,000 firms covering all private, nonfarm sectors of the economy. We describe the motivation for and development of the technology module in the ABS, as well as provide a first look at technology adoption and use patterns across firms and sectors. We find that digitization is quite widespread, as is some use of cloud computing. In contrast, advanced technology adoption is rare and generally skewed towards larger and older firms. Adoption patterns are consistent with a hierarchy of increasing technological sophistication, in which most firms that adopt AI or other advanced business technologies also use the other, more widely diffused technologies. Finally, while few firms are at the technology frontier, they tend to be large so technology exposure of the average worker is significantly higher. This new data will be available to qualified researchers on approved projects in the Federal Statistical Research Data Center network.

Suggested Citation

  • Nikolas Zolas & Zachary Kroff & Erik Brynjolfsson & Kristina McElheran & David N. Beede & Cathy Buffington & Nathan Goldschlag & Lucia Foster & Emin Dinlersoz, 2020. "Advanced Technologies Adoption and Use by U.S. Firms: Evidence from the Annual Business Survey," NBER Working Papers 28290, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:28290
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    1. Brynjolfsson, Erik, 2013. "Wired for Innovation: How Information Technology Is Reshaping the Economy," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262518611, April.
    2. Nicholas Bloom & Luis Garicano & Raffaella Sadun & John Van Reenen, 2014. "The Distinct Effects of Information Technology and Communication Technology on Firm Organization," Management Science, INFORMS, vol. 60(12), pages 2859-2885, December.
    3. David Autor & Anna Salomons, 2018. "Is Automation Labor-Displacing? Productivity Growth, Employment, and the Labor Share," NBER Working Papers 24871, National Bureau of Economic Research, Inc.
    4. Ryan A. Decker & John Haltiwanger & Ron S. Jarmin & Javier Miranda, 2020. "Changing Business Dynamism and Productivity: Shocks versus Responsiveness," American Economic Review, American Economic Association, vol. 110(12), pages 3952-3990, December.
    5. John Haltiwanger & Ron S. Jarmin & Robert Kulick & Javier Miranda, 2016. "High Growth Young Firms: Contribution to Job, Output, and Productivity Growth," NBER Chapters, in: Measuring Entrepreneurial Businesses: Current Knowledge and Challenges, pages 11-62, National Bureau of Economic Research, Inc.
    6. Jae Song & David J Price & Fatih Guvenen & Nicholas Bloom & Till von Wachter, 2019. "Firming Up Inequality," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(1), pages 1-50.
    7. Daron Acemoglu & Pascual Restrepo, 2019. "Automation and New Tasks: How Technology Displaces and Reinstates Labor," Journal of Economic Perspectives, American Economic Association, vol. 33(2), pages 3-30, Spring.
    8. Ryan A. Decker & John Haltiwanger & Ron S. Jarmin & Javier Miranda, 2017. "Declining Dynamism, Allocative Efficiency, and the Productivity Slowdown," American Economic Review, American Economic Association, vol. 107(5), pages 322-326, May.
    9. Catherine Buffington & Javier Miranda & Robert Seamans, 2018. "Development of Survey Questions on Robotics Expenditures and Use in U.S. Manufacturing Establishments," Working Papers 18-44, Center for Economic Studies, U.S. Census Bureau.
    10. Kevin J. Stiroh, 2001. "What drives productivity growth?," Economic Policy Review, Federal Reserve Bank of New York, issue Mar, pages 37-59.
    11. Van Reenen, John, 2018. "Increasing differences between firms: market power and the macro-economy," LSE Research Online Documents on Economics 91698, London School of Economics and Political Science, LSE Library.
    12. Chris Forman & Avi Goldfarb & Shane Greenstein, 2012. "The Internet and Local Wages: A Puzzle," American Economic Review, American Economic Association, vol. 102(1), pages 556-575, February.
    13. Danial Lashkari & Arthur Bauer & Jocelyn Boussard, 2024. "Information Technology and Returns to Scale," American Economic Review, American Economic Association, vol. 114(6), pages 1769-1815, June.
    14. Candel Haug, Katharina & Kretschmer, Tobias & Strobel, Thomas, 2016. "Cloud adaptiveness within industry sectors – Measurement and observations," Telecommunications Policy, Elsevier, vol. 40(4), pages 291-306.
    15. Jorge Guzman & Scott Stern, 2020. "The State of American Entrepreneurship: New Estimates of the Quantity and Quality of Entrepreneurship for 32 US States, 1988–2014," American Economic Journal: Economic Policy, American Economic Association, vol. 12(4), pages 212-243, November.
    16. James Bessen, 2002. "Technology Adoption Costs and Productivity Growth: The Transition to Information Technology," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 5(2), pages 443-469, April.
    17. Nicholas Bloom & Mirko Draca & John Van Reenen, 2016. "Trade Induced Technical Change? The Impact of Chinese Imports on Innovation, IT and Productivity," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 83(1), pages 87-117.
    18. Teresa C. Fort, 2017. "Technology and Production Fragmentation: Domestic versus Foreign Sourcing," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 84(2), pages 650-687.
    19. Tobias Kretschmer & Eugenio J. Miravete & Jose C. Pernias, 2012. "Competitive Pressure and the Adoption of Complementary Innovations," American Economic Review, American Economic Association, vol. 102(4), pages 1540-1570, June.
    20. Enghin Atalay & Phai Phongthiengtham & Sebastian Sotelo & Daniel Tannenbaum, 2020. "The Evolution of Work in the United States," American Economic Journal: Applied Economics, American Economic Association, vol. 12(2), pages 1-34, April.
    21. 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.
    22. Horrace, William C. & Oaxaca, Ronald L., 2006. "Results on the bias and inconsistency of ordinary least squares for the linear probability model," Economics Letters, Elsevier, vol. 90(3), pages 321-327, March.
    23. Ryan Decker & John Haltiwanger & Ron Jarmin & Javier Miranda, 2014. "The Role of Entrepreneurship in US Job Creation and Economic Dynamism," Journal of Economic Perspectives, American Economic Association, vol. 28(3), pages 3-24, Summer.
    24. Nicholas Bloom & Raffaella Sadun & John Van Reenen, 2012. "Americans Do IT Better: US Multinationals and the Productivity Miracle," American Economic Review, American Economic Association, vol. 102(1), pages 167-201, February.
    25. Erik Brynjolfsson & Daniel Rock & Chad Syverson, 2018. "Artificial Intelligence and the Modern Productivity Paradox: A Clash of Expectations and Statistics," NBER Chapters, in: The Economics of Artificial Intelligence: An Agenda, pages 23-57, National Bureau of Economic Research, Inc.
    26. Chris Forman & Avi Goldfarb & Shane Greenstein, 2009. "The Internet and Local Wages: Convergence or Divergence?," NBER Working Papers 14750, National Bureau of Economic Research, Inc.
    27. Barth, Erling & Roed, Marianne & Schone, Pal & Umblijs, Janis, 2020. "How Robots Change Within-Firm Wage Inequality," IZA Discussion Papers 13605, Institute of Labor Economics (IZA).
    28. B. K. Atrostic & Sang V. Nguyen, 2005. "It and Productivity in U.S. Manufacturing: Do Computer Networks Matter?," Economic Inquiry, Western Economic Association International, vol. 43(3), pages 493-506, July.
    29. Erik Brynjolfsson & Thomas W. Malone & Vijay Gurbaxani & Ajit Kambil, 1994. "Does Information Technology Lead to Smaller Firms?," Management Science, INFORMS, vol. 40(12), pages 1628-1644, December.
    30. Robert Seamans & Manav Raj, 2018. "AI, Labor, Productivity and the Need for Firm-Level Data," NBER Working Papers 24239, National Bureau of Economic Research, Inc.
    31. Lucia Foster & Cheryl Grim & Nikolas Zolas, 2020. "A portrait of U.S. firms that invest in R&D," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 29(1), pages 89-111, January.
    32. Doms, Mark & Dunne, Timothy & Roberts, Mark J., 1995. "The role of technology use in the survival and growth of manufacturing plants," International Journal of Industrial Organization, Elsevier, vol. 13(4), pages 523-542, December.
    33. 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.
    34. Emek Basker & Lucia Foster & Shawn Klimek, 2017. "Customer‐employee substitution: Evidence from gasoline stations," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 26(4), pages 876-896, December.
    35. Timothy Dunne, 1991. "Technology Usage in U.S. Manufacturing Industries: New Evidence from the Survey of Manufacturing Technology," Working Papers 91-7, Center for Economic Studies, U.S. Census Bureau.
    36. Robert Mcguckin & Mary Streitwieser & Mark Doms, 1998. "The Effect Of Technology Use On Productivity Growth," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 7(1), pages 1-26.
    37. Keith Barnatchez & Leland D. Crane & Ryan A. Decker, 2017. "An Assessment of the National Establishment Time Series (NETS) Database," Finance and Economics Discussion Series 2017-110, Board of Governors of the Federal Reserve System (U.S.).
    38. Erling Barth & Alex Bryson & James C. Davis & Richard Freeman, 2016. "It's Where You Work: Increases in the Dispersion of Earnings across Establishments and Individuals in the United States," Journal of Labor Economics, University of Chicago Press, vol. 34(S2), pages 67-97.
    39. Susan Helper, 1995. "Supplier Relations and Adoption of New Technology: Results of Survey Research in the U.S. Auto Industry," NBER Working Papers 5278, National Bureau of Economic Research, Inc.
    40. Stuart J.H. Graham & Cheryl Grim & Tariqul Islam & Alan C. Marco & Javier Miranda, 2018. "Business dynamics of innovating firms: Linking U.S. patents with administrative data on workers and firms," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 27(3), pages 372-402, September.
    41. Sang Nguyen & B.K. Atrostic, 2006. "How Businesses Use Information Technology: Insights for Measuring Technology and Productivity," Working Papers 06-15, Center for Economic Studies, U.S. Census Bureau.
    42. Emin Dinlersoz & Zoltan Wolf, 2024. "Automation, labor share, and productivity: plant-level evidence from U.S. manufacturing," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 33(4), pages 604-626, May.
    43. Prasanna Tambe & Lorin M. Hitt & Erik Brynjolfsson, 2012. "The Extroverted Firm: How External Information Practices Affect Innovation and Productivity," Management Science, INFORMS, vol. 58(5), pages 843-859, May.
    44. Prasanna Tambe & Lorin M. Hitt, 2012. "The Productivity of Information Technology Investments: New Evidence from IT Labor Data," Information Systems Research, INFORMS, vol. 23(3-part-1), pages 599-617, September.
    45. John Haltiwanger & Ron S. Jarmin & Javier Miranda, 2013. "Who Creates Jobs? Small versus Large versus Young," The Review of Economics and Statistics, MIT Press, vol. 95(2), pages 347-361, May.
    46. Milgrom, Paul & Roberts, John, 1990. "The Economics of Modern Manufacturing: Technology, Strategy, and Organization," American Economic Review, American Economic Association, vol. 80(3), pages 511-528, June.
    47. Nancey Green Leigh & Benjamin Kraft & Heonyeong Lee, 2020. "Robots, skill demand and manufacturing in US regional labour markets," Cambridge Journal of Regions, Economy and Society, Cambridge Political Economy Society, vol. 13(1), pages 77-97.
    48. Kristina McElheran, 2014. "Delegation in Multi‐Establishment Firms: Evidence from I.T. Purchasing," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 23(2), pages 225-258, June.
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    2. Martin Fleming, 2023. "Enterprise Information and Communications Technology – Software Pricing and Developer Productivity Measurement," Working Papers 037, The Productivity Institute.
    3. Belloc, Filippo & Burdin, Gabriel & Cattani, Luca & Ellis, William & Landini, Fabio, 2022. "Coevolution of job automation risk and workplace governance," Research Policy, Elsevier, vol. 51(3).
    4. João Amador & Cátia Silva, 2023. "A view on ICT and digitalization in Portuguese firms," Economic Bulletin and Financial Stability Report Articles and Banco de Portugal Economic Studies, Banco de Portugal, Economics and Research Department.
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    6. Haefner, Naomi & Parida, Vinit & Gassmann, Oliver & Wincent, Joakim, 2023. "Implementing and scaling artificial intelligence: A review, framework, and research agenda," Technological Forecasting and Social Change, Elsevier, vol. 197(C).
    7. Hamid Firooz & Zheng Liu & Yajie Wang, 2022. "Automation, Market Concentration, and the Labor Share," Working Paper Series 2022-05, Federal Reserve Bank of San Francisco.
    8. Arntz, Melanie & Genz, Sabrina & Gregory, Terry & Lehmer, Florian & Zierahn-Weilage, Ulrich, 2024. "De-routinization in the fourth industrial revolution: Firm-level evidence," ZEW Discussion Papers 24-005, ZEW - Leibniz Centre for European Economic Research.
    9. Zoran Aralica & Bruno Skrinjaric, 2021. "Adoption of digital and ICT technologies and firms’ productivity," Working Papers 2102, The Institute of Economics, Zagreb.
    10. Naudé, Wim & Bray, Amy & Lee, Celina, 2021. "Crowdsourcing Artificial Intelligence in Africa: Findings from a Machine Learning Contest," IZA Discussion Papers 14545, Institute of Labor Economics (IZA).
    11. Calza, Elisa & Lavopa, Alejandro & Ligia Zagato, 2022. "Advanced digital technologies and industrial resilience during the COVID-19 pandemic: A firm-level perspective," MERIT Working Papers 2022-008, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
    12. Andres, Raphaela & Niebel, Thomas & Viete, Steffen, 2024. "Do capital incentive policies support today’s digitization needs?," Telecommunications Policy, Elsevier, vol. 48(1).
    13. Belloc, Filippo & Burdin, Gabriel & Landini, Fabio, 2022. "Robots, Digitalization, and Worker Voice," GLO Discussion Paper Series 1038, Global Labor Organization (GLO).
    14. MORIKAWA Masayuki, 2024. "Use of Artificial Intelligence and Productivity: Evidence from firm and worker surveys," Discussion papers 24074, Research Institute of Economy, Trade and Industry (RIETI).
    15. G. Jacob Blackwood & Cindy Cunningham & Matthew Dey & Lucia Foster & Cheryl Grim & John C. Haltiwanger & Rachel L. Nesbit & Sabrina Pabilonia & Jay Stewart & Cody Tuttle & Zoltan Wolf, 2023. "Opening the Black Box: Task and Skill Mix and Productivity Dispersion," NBER Chapters, in: Technology, Productivity, and Economic Growth, National Bureau of Economic Research, Inc.
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    17. Gathmann, Christina & Kagerl, Christian & Pohlan, Laura & Roth, Duncan, 2024. "The pandemic push: Digital technologies and workforce adjustments," Labour Economics, Elsevier, vol. 89(C).
    18. Filippo Belloc & Gabriel Burdin & Fabio Landini, 2023. "Advanced Technologies and Worker Voice," Economica, London School of Economics and Political Science, vol. 90(357), pages 1-38, January.
    19. Alguacil, Maite & Lo Turco, Alessia & Martínez-Zarzoso, Inmaculada, 2022. "Robot adoption and export performance: Firm-level evidence from Spain," Economic Modelling, Elsevier, vol. 114(C).
    20. Danilov, Anastasia & Chugunova, Marina, 2022. "Use of digital technologies for HR management in Germany: Survey evidence," MPRA Paper 111530, University Library of Munich, Germany.

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    JEL classification:

    • M15 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Administration - - - IT Management
    • O3 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights
    • O47 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Empirical Studies of Economic Growth; Aggregate Productivity; Cross-Country Output Convergence
    • O51 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - U.S.; Canada

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