Will stopping immigration cause labor shortages?

Yes, sharply reducing or stopping immigration would very likely cause or worsen labor shortages in key sectors and constrain overall labor force growth, particularly in aging economies like the US and Europe—though the effects involve trade-offs, market adjustments (higher wages, automation, native participation), and are not uniform across all jobs or skill levels.[1]

Immigrants (foreign-born) make up roughly 18–20% of the US workforce in recent years. They are disproportionately concentrated in certain industries: construction (often 25–30% foreign-born, higher for noncitizens), agriculture/farming (very high shares for crop workers, sometimes 30–60%+ depending on the measure and region, with many unauthorized), leisure/hospitality/food services, building/grounds maintenance, and parts of manufacturing, transportation, and health care support. High-skilled immigrants are also significant in tech, engineering, medicine, and STEM.[2][3][4]

Evidence from Recent Reductions and Demographics

In periods of sharp slowdowns or crackdowns (e.g., recent US net migration turning near-zero or negative amid enforcement, reduced legal pathways, and deportations), economists and businesses have reported:

Academic and Fed-related work finds immigration helps fill vacancies and alleviate shortages (negative correlation between inflows and subsequent vacancy growth in tight markets), with complementarities between natives and immigrants (different tasks/occupations). A slowdown in low-skilled immigration has been linked to shortages in service jobs, rising low-skilled wages, but also higher consumer prices and reduced incentives for native education/training, hurting longer-term productivity. Surges (e.g., post-pandemic) have boosted employment and output.[12][13][14]

Counterarguments and Market Adjustments

Restrictionist analyses (e.g., from CIS) argue that true “shortages” rarely exist in free markets—they usually mean employers cannot find workers at the wages/conditions they prefer. Higher wages should draw in more natives (whose participation rates have room to rise in some groups), spur automation/capital investment, improve productivity, or shift production. Past immigration slowdowns (e.g., late 2010s) coincided with solid GDP growth, low inflation, and faster wage gains for less-educated natives without major crises. Immigrants also add demand (spending, entrepreneurship), so removing them reduces both supply and demand. The “lump of labor” fallacy (fixed jobs) is rejected by most economists; immigrants often create jobs net.[15][16][17]

Wage effects on natives are typically small overall (often near zero or modestly positive long-run due to complementarities, occupational upgrading, and capital adjustment), though low-skilled natives in high-immigration areas/sectors can face more competition short-term. Complete stops would raise wages in immigrant-heavy low-skill roles but also raise prices for goods/services (food, housing construction, care, hospitality) and risk output losses if businesses scale back, close, or automate imperfectly.[18]

Bottom Line and Caveats

In short, stopping immigration does not create a simple windfall of jobs for natives without costs; it reduces labor supply in ways that produce real frictions and slower potential growth in current demographic contexts, even as markets and policy can mitigate some impacts.