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Grok 4.5Oct 19, 2026x-ai/grok-4.5-20260708

Will stopping immigration cause labor shortages?

Yes, abruptly stopping or severely restricting immigration would likely cause or worsen labor shortages in many sectors, at least in the short-to-medium term, and slow overall labor force and economic growth—particularly in countries with aging populations and low fertility like the US and much of Europe. Markets can partially adjust (via higher wages, automation, internal migration, or capital substitution), but evidence shows these adjustments are incomplete, costly, and often fail to fully replace immigrant workers, especially in physically demanding or low-wage roles that natives are less willing or able to fill at scale.[1][2]

Demographic Context

Native-born working-age populations (roughly 18-65) in the US have been stagnating or shrinking due to aging (Baby Boomers retiring), lower fertility (below replacement), and other factors. Immigration has been the primary driver of labor force growth for decades, contributing substantially to both high- and low-skilled workers.[1][3]

•Without immigration, the US working-age population would likely have begun shrinking over a decade ago. Recent sharp drops in net migration (e.g., estimates of falling from ~2 million to ~515,000 or even negative) raise risks of low or negative labor force growth.[3]
•Economists (e.g., Barclays) have estimated that a near-halt in migrant inflows, combined with aging, could drop "potential" private payroll growth to under 10,000–60,000 per month (from over 100,000), constraining GDP growth.[4]
•Similar dynamics exist in Europe, where aging workforces and shortages (reported by ~4/5 of SMEs) clash with anti-immigration policies; non-EU workers filled a large share of recent job creation.[5][6]

Labor force participation among natives has not risen enough to offset this, and geographic mobility has declined, limiting how quickly natives fill gaps.[1]

Sectoral Dependence and Shortages

Immigrants (foreign-born) make up ~19% of the overall US workforce but far higher shares in key areas:

•Construction/trades: ~26–35% overall (higher in some analyses); over 50% in drywall/ceiling installers, plasterers, roofers, painters, and flooring (e.g., 53–57%). Immigrants drove much of the post-Great Recession recovery in these roles. Shortages already cause project delays; crackdowns exacerbate them.[7][8][9]
•Agriculture/farming: Often 30–40%+ (higher in some states/crops).
•Other: High shares in building/grounds cleaning/maintenance (~40%), food prep/serving, production, healthcare support, transportation. Also significant in STEM/computer/math (~27%) and life sciences.[10][11]

Recent immigration reductions/deportations have been linked to depleted skilled trades pipelines, construction delays, hiring difficulties in ag/hospitality/manufacturing, and no clear boost (or even rises) in native-born unemployment/participation issues in affected areas. Businesses report candidates are often unqualified, and "there are no American kids willing to install roofs" in some regions.[7][12][2]

Studies of the 2021–2024 immigration surge found it alleviated post-pandemic shortages by filling vacancies and moderating wage pressures (immigrants and natives often act as complements under certain production technologies). Prior slowdowns (e.g., post-2007 low-skilled immigration decline) correlated with low-skilled service shortages and other imbalances.[13][14]

Economic Mechanisms and Evidence

•Supply side: Immigration expands labor supply where demand is high. Reductions tighten markets, raise wages for remaining (often low-skilled) workers, but also raise prices for goods/services, slow firm growth/formation, and can reduce overall employment growth (immigrants create demand via spending and entrepreneurship; jobs are not fixed).[15][16]
•Native impacts: Many studies find little to no broad displacement of natives; some show reduced immigration fails to deliver jobs/wages gains for US-born workers and can even coincide with higher native unemployment. Complements (e.g., immigrants in manual roles enabling natives in supervisory ones) are common.[2][15]
•Adjustments and costs: Higher wages may attract some natives or spur automation/training, but physical demands, location mismatches, preferences, and training lags limit this. Long-term risks include lower productivity, slower growth, and (in models) reduced incentives for native skill-upgrading if skill premia fall.[14][1]
•Historical parallels: The Chinese Exclusion Act (1882) caused severe labor shortages in the West, reducing manufacturing output, establishments, and wages as firms struggled to replace workers. 1920s quotas led to adaptations (internal Black/Southern migration, Mexican/Canadian inflows, some tech), but also disruptions; WWII required guest worker programs (Bracero) for agricultural shortages.[17][18]

Nuances and Caveats

•Not uniform: High-skilled immigration (e.g., H-1B STEM) boosts innovation/productivity differently than low-skilled. Complete "stopping" (all legal + illegal) is more extreme than selective restrictions or enforcement. Temporary/guest worker programs can target shortages without permanent settlement.
•Other factors: Shortages also stem from training gaps, housing costs, regulations, and post-COVID shifts. Immigration brings fiscal, infrastructure, housing, and social costs that must be weighed separately.
•Longer term: Economies adapt, but aging + zero immigration implies persistently slower potential growth. Europe faces analogous pressures. Policy options include expanding legal pathways for needed skills, better training/apprenticeships for natives, automation incentives, and addressing root causes of irregular migration (e.g., via foreign aid or origin-country development).

In short, immigration is not the sole solution to labor issues, but demographic realities make sharp stoppages highly disruptive to labor supply in immigrant-reliant sectors and the broader economy. Data from recent reductions and historical episodes consistently point to shortages and slower growth rather than seamless native replacement or broad native gains.

Citations (18)

  1. 1econofact.orgAcademic
    https://econofact.org/immigration-and-waning-us-labor-force-growth

    Backs: “Markets can partially adjust (via higher wages, automation, internal migration, or capital substitution), but evidence shows these adjustments are incomplete, costly, and often fail to fully replace immigrant workers, especially in physically demanding or low-wage roles that natives are less willing or able to fill at…”

  2. 2bloomberglaw.comNews and media
    https://news.bloomberglaw.com/immigration/immigration-crackdown-fails-to-deliver-jobs-for-us-born-workers

    Backs: “Markets can partially adjust (via higher wages, automation, internal migration, or capital substitution), but evidence shows these adjustments are incomplete, costly, and often fail to fully replace immigrant workers, especially in physically demanding or low-wage roles that natives are less willing or able to fill at…”

  3. 3business-standard.comNews and mediaquality 0.62
    https://www.business-standard.com/amp/immigration/immigration-fall-from-2-million-to-515-000-may-shrink-us-labour-force-fed-125112000258_1.html

    Backs: “Immigration has been the primary driver of labor force growth for decades, contributing substantially to both high- and low-skilled workers.”

  4. 4reuters.comNews and mediaquality 1.00
    https://www.reuters.com/markets/us/us-migrant-halt-may-wipe-potential-job-growth-2025-06-24/

    Backs: “Economists (e.g., Barclays) have estimated that a near-halt in migrant inflows, combined with aging, could drop "potential" private payroll growth to under 10,000–60,000 per month (from over 100,000), constraining GDP growth.”

  5. 5mixedmigration.orgNonprofits and think tanks
    https://mmr2025.mixedmigration.org/mmr/2025/labour-shortages-and-anti-immigration-stances/

    Backs: “Similar dynamics exist in Europe, where aging workforces and shortages (reported by ~4/5 of SMEs) clash with anti-immigration policies; non-EU workers filled a large share of recent job creation.”

  6. 6dw.comNews and mediaquality 0.86
    https://amp.dw.com/en/wealthy-nations-curb-labor-migration-as-demand-surges/a-74978505

    Backs: “Similar dynamics exist in Europe, where aging workforces and shortages (reported by ~4/5 of SMEs) clash with anti-immigration policies; non-EU workers filled a large share of recent job creation.”

  7. 7firstpost.comNot yet classified
    https://www.firstpost.com/world/united-states/us-needs-1-7-million-skilled-workers-a-year-but-trumps-immigration-crackdown-adds-to-labour-woes-14052891.html

    Backs: “Shortages already cause project delays; crackdowns exacerbate them.”

  8. 8engimarket.comLow provenance
    https://www.engimarket.com/blog/immigrant-workers-in-construction-statistics/

    Backs: “Shortages already cause project delays; crackdowns exacerbate them.”

  9. 9harvard.eduAcademic
    https://www.jchs.harvard.edu/blog/declining-immigration-threatens-labor-supply-construction-trades

    Backs: “Shortages already cause project delays; crackdowns exacerbate them.”

  10. 10epi.orgNonprofits and think tanks
    https://www.epi.org/chart/immigration-faq-2025-table-2-immigrants-comprise-a-significant-share-of-workers-in-both-high-and-low-paying-major-occupations-top-10-occupations-for-immigrants-by-share-of-employment-in-the-o/

    Backs: “Also significant in STEM/computer/math (~27%) and life sciences.”

  11. 11usafacts.orgData and toolsquality 0.91
    https://usafacts.org/articles/which-industries-employ-the-most-immigrant-workers/

    Backs: “Also significant in STEM/computer/math (~27%) and life sciences.”

  12. 12usbordernews.comNews and media
    https://www.usbordernews.com/p/immigration-crackdown-depletes-skilled-us-workforce

    Backs: “Businesses report candidates are often unqualified, and "there are no American kids willing to install roofs" in some regions.”

  13. 13lse.ac.ukAcademic
    https://www.lse.ac.uk/CFM/assets/pdf/CFM-Discussion-Papers-2026/CFMDP2026-04-Paper.pdf

    Backs: “Prior slowdowns (e.g., post-2007 low-skilled immigration decline) correlated with low-skilled service shortages and other imbalances.”

  14. 14ssrn.comAcademic
    https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4893438

    Backs: “Prior slowdowns (e.g., post-2007 low-skilled immigration decline) correlated with low-skilled service shortages and other imbalances.”

  15. 15forbes.comNews and mediaquality 0.83
    https://www.forbes.com/sites/stuartanderson/2026/02/22/new-research-finds-reducing-immigration-does-not-help-us-workers/

    Backs: “Reductions tighten markets, raise wages for remaining (often low-skilled) workers, but also raise prices for goods/services, slow firm growth/formation, and can reduce overall employment growth (immigrants create demand via spending and entrepreneurship; jobs are not fixed).”

  16. 16frbsf.orgGovernment
    https://www.frbsf.org/research-and-insights/publications/working-papers/2026/10/impacts-unauthorized-immigration-us-labor-housing-markets-new-evidence-administrative-microdata/

    Backs: “Reductions tighten markets, raise wages for remaining (often low-skilled) workers, but also raise prices for goods/services, slow firm growth/formation, and can reduce overall employment growth (immigrants create demand via spending and entrepreneurship; jobs are not fixed).”

  17. 17hbs.eduAcademic
    https://www.library.hbs.edu/working-knowledge/history-check-how-barring-immigrants-backfired-in-1880s-america

    Backs: “WWII required guest worker programs (Bracero) for agricultural shortages.”

  18. 18nber.orgAcademic
    https://www.nber.org/papers/w26536.pdf

    Backs: “WWII required guest worker programs (Bracero) for agricultural shortages.”