Will stopping immigration cause labor shortages?

Yes, stopping or sharply curtailing immigration is likely to cause or worsen labor shortages in many developed economies, especially in the short-to-medium term and in specific sectors, though economies can partially adjust over time through higher wages, prices, automation, and other changes.[1]

Immigrants often comprise a large share of workers in agriculture, construction, hospitality/food services, caregiving/healthcare support, and certain manufacturing or trades roles. In the US, for example, foreign-born workers have accounted for a disproportionate share of labor force growth in recent decades and make up roughly 30-35% of construction trades (higher in some sub-occupations like drywall or painting), despite being about 18-19% of the overall labor force.[2][3]

Demographic and Structural Drivers

Native-born working-age populations in the US, Europe, Japan, and similar countries are stagnating or shrinking due to low fertility rates (below replacement) and aging (baby boomers retiring). Without immigration, the US working-age population would have begun shrinking years earlier. Immigrants have offset this, contributing the majority of recent labor force growth in places like the US.[3][4]

Labor force participation among natives has not risen enough to fully compensate, and geographic/occupational mobility has declined. Demand continues in service-oriented and physically demanding jobs that grow with an aging, wealthier population. Stopping net immigration (or turning it negative via enforcement and reduced legal inflows) directly reduces the supply of workers available for these roles.[3]

Recent US data after sharp immigration declines (net migration falling from peaks near 2+ million toward hundreds of thousands or near-zero/negative) illustrate this: potential monthly private payroll growth is projected to drop sharply (e.g., toward under 10,000–60,000 from prior higher levels), slowing potential GDP growth. Break-even job growth needed to keep unemployment stable has fallen dramatically. Sectors like construction report acute squeezes, with projects delayed and costs rising. Similar patterns appear in Europe and the UK with tighter policies.[1][5][6]

Japan provides a long-running example of an aging society with historically low immigration: it faces persistent shortages and has gradually expanded controlled foreign worker programs (while restricting permanent settlement) precisely because domestic supply and automation have not fully closed the gaps.[7]

Do Natives Simply Take the Jobs?

Evidence indicates limited short-term substitution. Studies of visa lotteries (e.g., H-2B low-skill), the end of the Bracero guest-worker program, pandemic-era visa drops, and recent enforcement show that reducing immigrant labor often leads firms to contract output, investment, and sometimes native employment rather than cleanly replacing workers one-for-one. Immigrants and natives are frequently complements (different skills, tasks, or willingness for certain jobs); immigrant workers also boost demand through consumption and entrepreneurship, creating jobs.[8][9][10]

Recent US crackdowns have coincided with rising native-born unemployment or falling participation in some data, alongside business reports of unfilled positions—not a broad shift of natives into previously immigrant-heavy roles. The “lump of labor” (fixed number of jobs) view is rejected by most economists; immigration expands the economic pie.[5][11]

Adjustments, Trade-offs, and Longer-Term Views

Complete “stopping” is rare and hard to achieve perfectly (illegal flows, existing populations, temporary programs), but sharp reductions produce measurable tightness. Effects vary by skill level, sector, location (rural/urban), and policy design (e.g., temporary vs. permanent, high- vs. low-skill). High-skill immigration often shows clearer complementarity and innovation benefits; low-skill fills niches with lower native interest at prevailing wages/conditions.

In summary, the economic consensus and recent evidence indicate that abruptly stopping immigration does cause labor shortages in key areas and slows overall workforce/economic expansion amid demographic decline. Adjustments mitigate but do not eliminate the effects without costs in output, prices, or growth. Policy debates often center on the type, volume, selection, and integration of immigration rather than zero, balancing labor needs against other social, fiscal, and political factors.