Will stopping immigration cause labor shortages?

This is a complex economic question where the answer depends heavily on context—which sectors, which countries, demographic trends, and time horizons. Let me pull in some current data to ground this.The evidence suggests yes, in many contexts stopping or sharply cutting immigration can cause or worsen labor shortages, but the effect isn't universal—it depends heavily on demographics, sector, and how quickly an economy can adjust. Here's the breakdown:

Where the shortage risk is clear

Demographics matter enormously. In countries like the U.S., about 10,000 baby boomers reach retirement age every day, and roughly 90% will have stopped working by 2030, while U.S. fertility has sat below replacement level since 2007, shrinking the pipeline of young workers behind them. This creates a structural gap that native births alone can't fill in the near term. As one commentary put it, immigrants arrive already working age and go to work at higher rates than people born here, so a change in immigration policy shows up in the labor force almost immediately, whereas a sudden national enthusiasm for having babies would not produce a single additional worker until the 2040s.

Recent U.S. data supports this. The Kansas City Fed found an aging population and recent declines in immigration are two forces weighing on labor force growth, with the decline in net immigration putting downward pressure on labor force growth, together reducing "breakeven" employment growth—the number of new jobs required to maintain a stable unemployment rate. Indeed's Hiring Lab similarly projects that at current immigration levels, the US labor force is projected to shrink by roughly 1.2 million workers by 2040, with a sharper near-term decline of about 3.7%, or 5.9 million workers, by 2032, driven largely by aging and retiring workers.

Specific sectors are especially vulnerable. Agriculture is a stark example: the Trump administration's Labor Department itself acknowledged in an October 2025 filing that "near total cessation of the inflow of illegal aliens presents a sufficient risk of supply shock-induced food shortages" because domestic workers won't fill the gap even at higher wages. One analysis projected this could contribute to a 14.5% increase in food and beverage prices from 2024 to 2028. Caregiving is another flashpoint, with reporting describing a critical shortage of caregivers as immigration slows, impacting eldercare and the healthcare workforce.

The counterargument: markets can adapt

Not all economists agree shortages are inevitable long-term. Research by Acemoglu and colleagues found that historically, many experts predict declining birth rates will hamper economic growth, but new research finds this hasn't been the case over the past 70 years—firms develop and adopt labor-saving technology in response to an aging, shrinking workforce, which increases productivity per worker. The mechanism: technology responds endogenously to labor scarcity, and countries/regions with lower birth rates exhibit more labor-saving patents and growing high-tech activity.

However, even skeptics of the "demographic doom" narrative note limits to this adaptation. As one critique observed, the economic damage from an aging, shrinking population hits consumer demand first and labor shortage second, and while AI and robotics focus on the labor-shortage side, whether they can actually plug the gap remains questionable.

The bottom line

So the honest answer is: it depends on the country's demographic profile and the sector in question, but in aging, low-birth-rate economies like the U.S., stopping immigration is already showing measurable signs of tightening labor markets and shortages in specific industries, even if broader macroeconomic doom isn't guaranteed.