Will stopping immigration cause labor shortages?

I need more specific data or studies. Let me browse some key articles and search for economic consensus or historical examples.[1][2][3][4][5]Yes, sharply reducing or stopping immigration is likely to cause or worsen labor shortages in many sectors and slow overall labor force and economic growth, particularly in aging developed economies like the US, though markets adjust over time via wages, automation, and other channels. This is not absolute or permanent "shortages" in a fixed-pie sense (economies are dynamic), but reduced labor supply relative to demand creates tightness, unfilled vacancies, higher costs, and constrained output.[1]

Demographic and Recent Empirical Context

Developed countries face aging populations and low fertility (below replacement in the US since ~2008). Without immigration, the US working-age (roughly 16–64 or prime-age) population would have begun shrinking years earlier—around 2012 per San Francisco Fed analysis—and native-born labor force growth is projected to slow further or turn negative in coming decades. Immigration has driven the bulk (often most or all) of recent US labor force and population growth.[2]

Recent US immigration slowdowns/halts (border crossings near zero, higher deportations, visa restrictions) illustrate this:

Immigrants often fill roles with lower native interest (physical, seasonal, night shifts, low-wage services) or complement natives (different skills/specializations boosting productivity). They also create demand (spending ~85%+ of earnings locally) and jobs via entrepreneurship (immigrants start businesses at higher rates).

Economic Theory, Consensus, and Adjustments

Standard supply-demand: reduced labor supply tightens markets → higher wages (benefiting remaining workers in affected roles) but also higher prices, lower output/employment growth overall, and potential investment drops. Immigrants are not pure substitutes; many studies find complementarity, with immigration linked to more jobs/higher wages for natives overall or for less-educated natives in recent periods (e.g., Peri/Caiumi analyses of 2000–2019/2022).[5]

There is no strong consensus that immigrants broadly "take jobs" from natives or cause large wage drops for most groups—the "lump of labor" fallacy is rejected. Effects are often small/positive net for natives via demand and complementarity, though some researchers (e.g., Borjas) find modest negative wage effects for low-skilled natives competing most directly (e.g., 3–4% wage drop per 10% supply increase in a skill group). Unauthorized flows have shown roughly one-for-one local employment growth with mixed wage evidence.[8]

Adjustments mitigate pure shortages:

Caveats and Trade-offs

In short, stopping immigration removes a key source of labor force expansion amid demographics that otherwise point to stagnation or decline. This produces shortages (unfilled jobs at prevailing wages) and slower growth in affected areas, as seen in recent data and history, but economies adapt—often with higher costs, lower output, or tech shifts rather than seamless native replacement. Selective, legal pathways responsive to labor needs can mitigate extremes while addressing other concerns. Outcomes depend on policy details, sector, skill mix, and complementary measures (training, automation incentives, housing supply).