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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesImmigrants can contribute to a host economy in two connected ways: through skilled work and business creation, and through cross-border networks that help firms reach customers, partners, investment and talent abroad. Research on Chinese and Indian engineers in Silicon Valley illustrates both channels—but its headline business figures describe 1998, not today’s technology sector, and do not isolate Indian engineers alone.
How immigrants can contribute to an economy
The economic contribution is not limited to the job an immigrant holds. Skilled workers can add expertise to firms, develop new products and start businesses. Their professional and personal ties across borders may also help businesses in the host country identify overseas partners, customers, investors and employees.
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These are complementary channels, not interchangeable measures. Employment, business ownership and patents capture some direct activity; trade and investment links capture cross-border connections. A case study or patent estimate cannot, by itself, establish how much immigration raises a country’s current GDP or trade.
What the Silicon Valley figures show—and what they do not
A Public Policy Institute of California release in 1999, summarizing AnnaLee Saxenian’s study, reported that Chinese and Indian engineers were running one-quarter of Silicon Valley’s high-technology businesses in 1998. The release describes the two groups collectively; it does not give a separate share for Indian engineers. PPIC’s 1999 release
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A 2000 report in Nature, summarizing Saxenian’s findings for the same year, said those Chinese- and Indian-run businesses accounted for more than $16.8 billion in sales and over 58,000 jobs in 1998. These are historical figures for the businesses in that study, not a measure of current Silicon Valley output or a universal estimate of immigrants’ economic impact. Nature’s 2000 report
Saxenian’s later analysis describes immigrant entrepreneurs not only as contributors to Silicon Valley firms, but also as facilitators of trade and investment with their countries of origin. That helps explain a possible mechanism: people who know business environments in more than one country can connect firms across borders. The article documents this pattern in a particular setting; it does not estimate a current, economy-wide increase in trade attributable to immigration. Saxenian, “Silicon Valley’s New Immigrant High-Growth Entrepreneurs” (2002)
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Evidence on innovation and skilled work
Patent estimates from historical U.S. data
In a 2010 study, Jennifer Hunt and Marjolaine Gauthier-Loiselle reported that immigrants patented at twice the native rate in the 2003 National Survey of College Graduates. Their analysis of U.S. states from 1940 to 2000 estimated that a one-percentage-point increase in the immigrant college-graduate share of a state’s population was associated with 9–18% more patents per capita. These findings concern specific samples, periods and methods; they should not be read as a current forecast or as a direct estimate of trade or GDP growth. Hunt and Gauthier-Loiselle, “How Much Does Immigration Boost Innovation?” (2010)
Firm-level findings published in 2023
A November 2023 U.S. Census Bureau working paper summary reports analysis of linked survey and administrative data on 199,000 firms. On average, immigrant-owned firms were more likely to engage in several innovation activities and to produce innovation outcomes. This is firm-level evidence about innovation, not a stand-alone estimate of the effect on national economic growth or trade. U.S. Census Bureau working paper summary
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Cross-border intentions are not completed trade
A PPIC survey release from 2001 reported that 76% of surveyed Indian immigrant professionals and 73% of surveyed Chinese immigrant professionals said they would consider starting businesses in their native countries. Those percentages describe stated intentions among survey respondents—not companies founded, investments made or trade completed. The release also discusses cross-border business ties, but its survey figures should not be treated as measured trade flows. PPIC’s 2001 survey release
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| Channel | What the evidence measures | What it does not establish |
|---|---|---|
| Skilled work and entrepreneurship | Historical Silicon Valley business activity; patenting in U.S. samples; and firm-level innovation outcomes. | A present-day immigrant share of Silicon Valley businesses or a universal effect on national output. |
| Cross-border networks | Documented business connections and surveyed intentions to start businesses in countries of origin. | A current causal estimate of immigration’s effect on trade volumes or economy-wide growth. |
In 1999, Saxenian warned that restricting skilled immigration could affect “not only the supply of skilled workers but also the rate of entrepreneurship, the level of international development and trade, and the state’s economic growth.” This was her assessment of possible consequences at the time, not a current official forecast or a settled estimate of what immigration does in every economy. PPIC’s 1999 release
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