Will stopping immigration cause labor shortages?

Yes, sharply reducing or stopping immigration would very likely cause or worsen labor shortages in many sectors and slow overall labor force and economic growth, especially in countries like the United States with low native fertility rates and an aging population. This is grounded in demographics, sectoral employment data, recent empirical observations from immigration slowdowns, economic studies, and historical examples. Effects are not uniform—some sectors and skill levels are hit harder—and markets can partially adjust via higher wages, automation, or native labor force participation, but adjustments are incomplete and take time.[1][2]

Demographic and Labor Force Fundamentals

Native-born working-age populations in developed countries are stagnating or shrinking due to fertility rates below replacement (around 1.6–1.7 in the US) and retiring baby boomers. Immigration has driven the large majority of recent US labor force growth (e.g., estimates of ~85% in some recent multi-year periods). Without it, the working-age population would have begun shrinking years earlier.[2][3]

Recent sharp drops in US net migration (from peaks near 2–3 million annually to near-zero or negative in some 2025 estimates, amid enforcement and policy changes) have already reduced potential nonfarm payroll growth. Analyses from Barclays, Fed researchers, and others project sustainable monthly private job gains falling dramatically (e.g., toward 10,000–60,000 or lower from prior averages well over 100,000–150,000), slowing potential GDP growth. The “breakeven” job growth needed to keep unemployment stable has dropped sharply.[1][4][5]

Projections of sustained low immigration or large-scale removals estimate millions fewer workers over a decade (e.g., reductions of several million to 10+ million in labor force size under restrictive scenarios), with corresponding hits to GDP growth.[6]

Sectoral Dependence

Immigrants (foreign-born, including both authorized and unauthorized) are overrepresented in specific occupations and industries:

Unauthorized immigrants concentrate in construction, agriculture, leisure/hospitality, and services. Even legal pathways (H-2B low-skill temporary, H-1B/skilled, students/OPT) fill gaps. Stopping inflows (and increasing outflows via deportation or voluntary departure) hits these hardest first; businesses report difficulty filling roles with natives due to preferences, location (rural/seasonal), physical demands, wages, or skills.[3][8]

Recent crackdowns have coincided with reports of acute shortages in construction/trades, slower overall hiring, and no clear boom in native-born employment in immigrant-heavy roles—sometimes with rising native unemployment or falling participation amid mismatch.[3][12]

Economic Mechanisms and Evidence on Natives

Immigration increases labor supply but also demand (immigrants consume goods/services, start businesses, and fill complementary roles that enable firm expansion and native specialization/upgrading). The “lump of labor” idea (fixed jobs) is a fallacy; employment is not zero-sum.

In short, shortages emerge or intensify because natives do not fully or quickly fill the roles (cultural preferences, training lags, geographic mismatch), businesses scale back, prices/wages rise in affected sectors (potentially stagflationary overall), and growth slows. Automation/AI and higher wages help over time but are imperfect substitutes for many jobs and require investment.[20][21]

Nuances and Caveats

In summary, economic evidence and recent data indicate that stopping immigration would cause labor shortages—particularly acute in immigrant-dependent sectors—and constrain growth, without delivering clear broad gains in native employment or wages. Policy trade-offs involve balancing labor needs, wages, fiscal impacts, social cohesion, and enforcement.