The Immigration Pause in Context
The Immigration Act of 1924 (Johnson-Reed Act) established national origin quotas that dramatically reduced immigration to the United States. Annual admissions fell from nearly 900,000 in the early 1900s to an average of roughly 150,000 during the 1925-1965 period.[5] The pause lasted 40 years, ending with the Hart-Celler Act of 1965 which eliminated quotas and gradually reopened admissions.
This was not a complete shutdown. Immigration continued throughout the period, including significant refugee admissions after World War II. But the scale was fundamentally different - roughly one-sixth of pre-restriction levels, and one-seventh of current levels.
Average Annual Legal Immigration by Era
Source: Migration Policy Institute, DHS Yearbook of Immigration Statistics[5][6]
What Happened During the Pause
The 1924-1965 period is one of the most economically transformative in American history. While multiple factors contributed - the New Deal, wartime industrialization, the GI Bill, federal highway and housing programs - the tight labor market created by reduced immigration was a foundational condition that enabled everything else.
When labor supply is constrained, employers must raise wages to attract workers. When population growth slows, housing supply can catch up with demand. These are not theoretical effects - they are precisely what the data shows.
| Indicator | Before Pause | End of Pause | Change |
|---|---|---|---|
| Homeownership rate | 45.6% (1920) | 61.9% (1960) | +16.3 pts |
| Real median family income | $3,300 (1929, adj.) | $6,900 (1965, adj.) | +109% |
| Income inequality (Gini) | 0.49 (1929) | 0.39 (1960) | -20% |
| Union membership | 11.6% (1930) | 28.3% (1954 peak) | +144% |
| Housing units built (1945-1965) | - | ~27 million | Largest boom in U.S. history |
| Poverty rate | ~40% (est. 1930s) | 17.3% (1965) | More than halved |
The Homeownership Transformation
In 1920, fewer than half of American families owned their homes. By 1960, nearly two-thirds did. This 16.3 percentage point increase remains the largest sustained gain in American homeownership history.[1]
The gain was enabled by three converging conditions: rising wages (due in part to tight labor markets), massive housing construction (27 million units in 20 years), and federal programs (FHA and VA loans). Reduced immigration contributed to both of the first two conditions - fewer workers competing for jobs meant higher wages, and slower population growth meant construction could outpace demand.
U.S. Homeownership Rate, 1920-2024
Source: U.S. Census Bureau, Housing Vacancies and Homeownership[1]
The Stall After 1965
After the Hart-Celler Act reopened immigration in 1965, the homeownership rate plateaued. Despite decades of economic growth, federal housing programs, and financial innovation (including 30-year fixed mortgages), the rate has gained only 3.8 percentage points in 60 years (61.9% to 65.7%). Compare that to the 16.3 points gained in the preceding 40 years of reduced immigration.[1] After the 1990 Act more than doubled immigration, the rate has been flat - rising to 66.9% during the housing bubble, then falling back.
The Post-War Building Boom
Between 1945 and 1965, the United States built approximately 27 million housing units - an average of 1.35 million per year.[3] This remains the largest sustained construction boom in American history. It was made possible by a combination of federal support (FHA and VA mortgage insurance, highway construction) and manageable demand growth (immigration averaging just 230,000 per year).
The Levittown model demonstrated what was possible: 17,447 homes built in four years, at prices affordable to returning veterans.[3] This was not a one-off - it was replicated across the country. The critical condition was that construction could outpace demand because population growth was moderate.
Housing Units Built During the Pause (1945-1965)
Source: Census Bureau, New Residential Construction[3]
The Key Difference: Supply Could Outpace Demand
Today, the U.S. builds approximately 1.4 million units per year while admitting over 1 million immigrants annually.[6] During the post-war boom, construction averaged 1.35 million units per year with immigration averaging just 230,000. The construction capacity was comparable - but the demand pressure was fundamentally different. This is why the post-war boom created affordability while current construction rates cannot close the gap.
Wages, Inequality, and the Middle Class
The immigration pause created tight labor markets that gave workers bargaining power. Real median family income more than doubled between 1929 and 1965.[2] Income inequality, as measured by the Gini coefficient, fell from 0.49 to 0.39 - a 20% decline.[4] Union membership rose from 11.6% to a peak of 28.3%.
This was the era that created the American middle class. Not as an aspiration, but as an economic reality - a period when a single income could support a family, buy a home, and build wealth through homeownership.
Harvard economist George Borjas has documented the mechanism: immigration increases labor supply, which redistributes wealth from workers to employers. His research estimates this transfer at approximately $402 billion annually.[7] During the 1924-1965 pause, this dynamic operated in reverse - constrained labor supply shifted bargaining power to workers.
The Borjas Framework
George Borjas's research at Harvard shows that immigration creates winners and losers within the domestic economy.[7] When labor supply expands through immigration:
- •Employers gain - lower labor costs increase profits
- •Workers lose - increased competition suppresses wages
- •Net effect - approximately $402 billion redistributed from workers to employers annually
During the 1924-1965 pause, this redistribution operated in the opposite direction - from employers to workers - enabling the middle-class expansion that defined the era.
Decade-by-Decade: The Pause vs. The Present
The following comparison tracks economic conditions during the pause against the post-1990 period, when immigration more than doubled.
| Decade | Immigration | Wages | Housing | Note |
|---|---|---|---|---|
| 1925-1935 | Low (~25K/yr avg) | Declining (Depression) | Stalled | Immigration near zero; economic collapse dominates |
| 1935-1945 | Low (~50K/yr avg) | Rising (war economy) | War production priority | Labor scarcity drives wage gains; wartime housing limited |
| 1945-1955 | Moderate (~200K/yr) | Rapidly rising | Massive building boom | Levittown model; FHA/VA loans; suburbs expand; tight labor markets |
| 1955-1965 | Moderate (~260K/yr) | Steadily rising | Continued expansion | Middle class peaks; homeownership 62%; real incomes doubling |
| 1991-2000 | High (~900K/yr) | Modest growth | Supply tightening | Immigration triples; wage gains slow; price-to-income begins rising |
| 2010-2024 | Very high (~1.05M/yr) | Stagnant (real) | Severe shortage | Price-to-income reaches 5.1x; 3.8M unit shortage; middle class contracts |
Red rows = post-1990 Immigration Act period. Sources: MPI, Census Bureau, BLS[1][2][5][6]
The COVID Natural Experiment
The 1924-1965 pause is not the only evidence. In 2020-2021, immigration to the United States dropped sharply due to COVID-19 travel restrictions and processing delays. The result was an unplanned, temporary reduction in labor supply - and the labor market response was immediate and measurable.[8]
Workers in sectors with historically high immigrant labor concentration experienced their largest wage gains in decades:
Real Wage Growth by Sector During COVID Immigration Slowdown (2020-2022)
Source: Bureau of Labor Statistics, Current Employment Statistics[8]
The Pattern Repeats
The COVID natural experiment confirmed the mechanism observed during the 1924-1965 pause: when immigration declines, wages rise - particularly for workers at the lower end of the income distribution. Leisure and hospitality workers saw 28.1% real wage growth during the immigration slowdown.[8] When immigration resumed in 2022-2023, wage growth in these sectors slowed. The pattern is consistent across time periods and economic conditions.
Addressing Common Objections
“The 1924 Act was racially motivated”
The national origins quota system of 1924 was discriminatory in its design. The Affordability and Immigration Act of 2026 proposes a universal reduction across all categories - not country-specific quotas. The relevant lesson from 1924-1965 is not the mechanism of restriction but the economic outcomes of reduced population growth. Those outcomes - rising wages, expanded homeownership, reduced inequality - benefited all Americans regardless of origin.
“Correlation is not causation - other factors drove middle-class growth”
Multiple factors contributed to mid-century prosperity: the New Deal, wartime industrialization, the GI Bill, federal highway and housing programs, and rising unionization. But each of these operated more effectively because of tight labor markets created by reduced immigration. Federal housing programs succeeded in part because construction could outpace demand. Unions gained bargaining power because employers could not easily replace workers. The immigration pause was a foundational condition, not the sole cause.
“The economy is different now”
The economy has changed - but the laws of supply and demand have not. When labor supply is constrained, wages rise. When population growth is moderate, housing supply can catch up. The COVID natural experiment confirmed these mechanisms operate in the modern economy exactly as they did in the mid-20th century.[8] The sectors that benefited most - hospitality, construction, food service - are the same sectors where immigrant labor concentration is highest.
What This Means for Policy
The 1924-1965 period demonstrates that reduced immigration, combined with active housing construction, can produce transformative economic outcomes. The data is consistent across metrics: homeownership rose, incomes doubled, inequality fell, and a broad middle class was created.
The Affordability and Immigration Act of 2026 draws directly on this precedent. Its proposed 90% immigration reduction for 10 years is shorter than the 40-year pause that built the middle class, but the principle is the same: allow housing supply to catch up with population, and let tight labor markets restore worker bargaining power.
Combined with the Act's other four policies - ending corporate ownership of homes, ending foreign buyer purchases, restoring the H-1 visa, and increasing housing construction - the immigration reduction would operate within a comprehensive framework designed to address all five structural failures simultaneously.
The Historical Record Is Clear
The United States has run this experiment. From 1924 to 1965, reduced immigration combined with housing construction produced the largest expansion of the middle class in American history. The COVID slowdown confirmed the mechanism still operates. Canada's 2024 immigration cuts, which produced a 6.6% rent decline, provide additional contemporary evidence.[9] The historical and contemporary data indicate that reduced immigration correlates with improved affordability and wage growth. The policy question is how to apply this evidence to current conditions.