Unauthorized Immigration and Local Labor Markets: Post-Pandemic Evidence and the Compositional Effect
The historic surge in unauthorized immigration into the United States from early 2021 to early 2024, followed by a steep decline beginning in mid-2024 and continuing through 2025 and 2026, represents a major macroeconomic and local labor market event. This post-pandemic surge has been a focal point of intense political debate, but rigorous empirical work published in 2026 provides scrupulously neutral, data-driven insights into its actual labor market, inflationary, and fiscal impacts.
Macroeconomic and Inflationary Impacts: The Supply-Demand Balance
A major study by Anton Cheremukhin and Sewon Hur (May 2026, NBER Working Paper No. 35168 / NBER Macroeconomics Annual 2026, Volume 41), titled "The Postpandemic U.S. Immigration Surge: New Facts and Inflationary Implications," examines how this historic influx affected the aggregate U.S. economy.
- Demographic Profile: Utilizing monthly Current Population Survey (CPS) microdata and its Annual Social and Economic Supplement (ASEC) from January 2022 to June 2025, the authors establish that the newly arrived immigrants are primarily low-skilled relative to the existing workforce and are highly likely to be hand-to-mouth consumers.
- Inflation Neutrality: Critics predicted that the surge would strain local resources and drive up inflation, while proponents argued it would cool an overheated labor market and lower inflation. Cheremukhin and Hur show that both views are incomplete. Instead:
"We find that the supply- and demand-side effects of the immigration surge roughly cancel out, causing a negligible response of inflation." The supply-side expansion (increased labor supply and productive capacity) was almost exactly offset by the demand-side expansion (immigrants immediately spending their earnings on consumption), leaving aggregate inflation virtually unchanged.
Local Labor Market Impacts: Employment, Wages, and the "Compositional" Puzzle
To understand the localized effects of this surge, recent 2026 administrative microdata research exploits the geographic variation in unauthorized immigrant worker flows (UIWF) across local markets. This research addresses a long-standing puzzle in labor economics: why large immigration flows sometimes appear to reduce average wages in aggregate data even when local native workers do not experience pay cuts.
- One-for-One Employment Absorption: The research finds that unauthorized immigrant worker flows increased local employment approximately one-for-one. This indicates robust local labor demand and suggests that newly arrived unauthorized workers were rapidly absorbed into the workforce without causing significant displacement of native-born workers.
- No Direct Wage Depression: Crucially, the surge did not lead to significant declines in local wages for existing workers.
- The Compositional Effect: The study reconciles this by showing that UIWF reduced labor income per capita. This decline is driven not by the cutting of existing workers' pay, but by a downward wage composition effect—mathematically, adding a large number of lower-paid, low-skilled workers to the local workforce lowers the average per-capita labor income, even if every individual worker's wage remains unchanged or increases.
- Fiscal Impacts: The influx was also found to strongly reduce government transfers per capita in highly exposed local markets, challenging the notion that the surge immediately strained local transfer networks.
These empirical findings from 2026 illustrate that while the post-pandemic immigration surge was historically large, its labor market effects were characterized by rapid employment absorption, wage neutrality for existing workers, and a compositional shift in average per-capita earnings rather than direct wage depression.