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How Much Does Immigration Boost Innovation?


  • Jennifer Hunt
  • Marjolaine Gauthier-Loiselle


We measure the extent to which skilled immigrants increase innovation in the United States. The 2003 National Survey of College Graduates shows that immigrants patent at double the native rate, due to their disproportionately holding science and engineering degrees. Using a 1940-2000 state panel, we show that a 1 percentage point increase in immigrant college graduates' population share increases patents per capita by 9-18 percent. Our instrument for the change in the skilled immigrant share is based on the 1940 distribution across states of immigrants from various source regions and the subsequent national increase in skilled immigration from these regions. (JEL J24, J61, O31, O33)

Suggested Citation

  • Jennifer Hunt & Marjolaine Gauthier-Loiselle, 2010. "How Much Does Immigration Boost Innovation?," American Economic Journal: Macroeconomics, American Economic Association, vol. 2(2), pages 31-56, April.
  • Handle: RePEc:aea:aejmac:v:2:y:2010:i:2:p:31-56 Note: DOI: 10.1257/mac.2.2.31

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    References listed on IDEAS

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    More about this item

    JEL classification:

    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J61 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Geographic Labor Mobility; Immigrant Workers
    • O31 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Innovation and Invention: Processes and Incentives
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes


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