Immigration and the Labor Market: What the Numbers Actually Tell Us

Immigration policy isn’t just about borders. It’s a lever governments pull to shape who works, what they earn, and how fast the economy grows. For years, economists have argued over whether more foreign workers undercut native wages or spark innovation and expansion. The data, drawn from natural experiments and decades of records, doesn’t hand us a simple yes or no. The real story depends on the mix of skills, how bendy the labor market is, and whether you’re looking at next quarter or the next decade.

Declan Osei here, writing for policypitch.com. I want to walk through the mechanics of how immigration policy ripples through labor markets, leaning on studies from the U.S., Canada, and the European Union. The aim is to step past the slogans and see what the numbers actually say.

The Supply-Side Channel: Who Shows Up to Work

At its simplest, immigration policy sets the size and skill mix of the labor pool. Points-based systems, like those in Canada and Australia, screen for high-skilled workers in fields where employers are scrambling. Family reunification and humanitarian programs, by contrast, bring a broader range of skills. The immediate effect is often sector-specific: a wave of construction workers can ease housing bottlenecks, while more software engineers might take the edge off tech-sector wage inflation.

Take the U.S. H-1B visa. An NBER working paper found that a 10% bump in H-1B workers in a given occupation nudged native wages down by 0.3% to 0.6% in the short run. But over five years, that same influx was linked to a 2% to 4% rise in overall employment in the sector, as companies expanded and created complementary roles for native-born workers.

Diverse group of professionals collaborating in a modern office setting

Short-Term Displacement vs. Long-Term Expansion

The push and pull between short-term displacement and long-term growth sits at the heart of the debate. In rigid labor markets with strong unions and centralized wage deals, a sudden bump in labor supply can indeed push wages down for existing workers, especially those with similar skills. Germany saw this in the early 2000s when low-skilled immigration from Eastern Europe led to a 1% to 2% wage dip in exposed sectors.

But in more flexible markets like the U.S., the adjustment often comes through job creation rather than wage cuts. Immigrants aren’t just workers; they’re also consumers and business founders. A 2020 report from the National Foundation for American Policy noted that immigrants started a quarter of new U.S. businesses, and those firms employed close to 6 million people. That entrepreneurial spark means immigration can grow the whole pie, not just reshuffle the slices.

When Skills Complement, Not Compete

One of the sturdiest findings in labor economics is that immigrants often fill gaps rather than crowd out locals. Low-skilled immigrants frequently take physically demanding jobs that native workers sidestep—think farm labor or home health aides. That shift lets native workers move into higher-skilled, better-paying roles that lean on language fluency and local credentials.

A landmark study by Giovanni Peri and Chad Sparber looked at low-skilled immigration’s effect on U.S. native workers from 1960 to 2010. They found that immigration pushed native workers toward communication-heavy tasks, lifting native wages by 1% to 2% for every 10% increase in immigrant employment. The engine was task specialization: immigrants handled the physically grueling work, freeing natives for supervisory and interactive jobs that pay more.

Construction workers on a building site, one giving instructions to others

High-Skill Immigration and the Innovation Boost

At the top of the skill ladder, the effects get even sharper. U.S. patent records show immigrants account for about 30% of all patents, though they make up roughly 14% of the population. A 2019 paper in the American Economic Review found that when states pulled in more college-educated immigrants, patenting per capita jumped 9% to 18% within five years, with spillover gains for native-born inventors who teamed up with them.

This innovation bump isn’t just an American story. Canada’s Express Entry system, which favors applicants with advanced degrees and job offers, has been tied to a 7% rise in R&D spending among firms in tech hubs like Toronto and Vancouver. The policy explicitly links immigration to labor demand through a points grid that weights education, language skills, and work experience.

Wage Effects Across the Earnings Spectrum

The distributional fallout is where the political temperature spikes. A 2017 meta-analysis by the National Academies of Sciences, Engineering, and Medicine sifted through more than 50 studies and concluded that immigration has a small negative effect on wages for native workers without a high school diploma—trimming them by 1% to 2% over a decade. For workers with a diploma or more, the effect was either a wash or slightly positive.

These results fit the skill-complementarity picture. Low-skilled immigrants compete more head-to-head with low-skilled natives, while high-skilled immigrants lift productivity and demand for native workers across the board. The takeaway for policy isn’t a broad clampdown but a careful calibration of the skill mix, paired with real investment in education and training for the native workers most likely to feel the heat.

Regional Variation and How Mobile Workers Are

Immigration’s labor market footprint isn’t the same everywhere. In counties where native-born residents are leaving, immigrants can steady local economies and keep the tax base from crumbling. A study of U.S. counties from 1990 to 2010 found that each immigrant arrival was linked to 1.2 additional local jobs, largely because newcomers boosted demand for services and housing.

On the flip side, in places where job growth is already flat, a sudden inflow can strain public services and push wages down in the near term. The speed of adjustment often makes the difference. When firms have time to add equipment and native workers can relocate or retrain, the early pain fades. Policy nudges—like federal relocation help or targeted training programs—can speed that adjustment along.

Immigration Policy as a Macroeconomic Tool

Beyond the micro-level labor market effects, immigration policy works as a macroeconomic shock absorber. During the COVID-19 pandemic, labor crunches in healthcare, agriculture, and logistics pushed several countries to loosen visa rules. The U.K. added care workers to its Shortage Occupation List, while Germany fast-tracked visas for seasonal farmhands. Those moves helped keep supply chains from snapping and held inflation in check.

Demographics make immigration even more important. Japan’s working-age population has been shrinking since 1995, and labor shortages have become a chronic headache. Despite cultural reluctance, Japan has slowly cracked the door open through its Technical Intern Training Program and specified skilled worker visas. Without those inflows, construction and elder care would be gasping for workers, driving up costs and eroding service quality.

Workers in a warehouse managing logistics and inventory

Fiscal Impacts: Taxes, Benefits, and the Long Budget View

Immigration policy also shapes labor markets through the government’s books. Immigrants pay payroll and income taxes, and their age profile often means they draw less from public pensions and healthcare than native-born populations. The Congressional Budget Office projected in 2023 that higher immigration would trim the U.S. federal deficit by $1.2 trillion over the following decade, mostly through a bigger labor supply and more tax revenue.

Still, the fiscal picture shifts with skill levels and the shape of the welfare state. In countries with generous benefits, low-skilled immigrants might be net fiscal recipients in the short term, though their kids often become net contributors over a lifetime. That intergenerational math matters a lot for policymakers weighing upfront integration costs against long-term returns.

Policy Design: What Three Countries Teach Us

Comparing immigration systems shows how design choices steer labor market outcomes. Canada’s points-based system puts a premium on human capital, leading to high employment rates among immigrants. Within five years of landing, more than 80% of skilled principal applicants are working, and their earnings catch up fast with native-born workers. The system’s flexibility lets provinces tweak criteria for regional labor gaps.

Germany’s approach has shifted a lot. The 2005 Immigration Act added a points-based piece for high-skilled workers, but the real pivot came with the 2020 Skilled Immigration Act, which dropped the requirement that immigrants have a job offer before arriving. That change admitted that rigid pre-approval was costing firms talent to nimbler competitors. Early numbers suggest the reform has bumped the inflow of non-EU skilled workers into the German labor market by 25%.

The United States leans heavily on employer-sponsored visas, creating a system where labor demand drives inflows but also tethers workers to specific employers. That can hold down wages for visa holders who can’t easily switch jobs, building a two-tier labor market inside firms. The H-1B visa, for instance, has drawn fire for letting employers underpay foreign workers relative to native counterparts, though recent rule changes have tightened wage requirements.

Enforcement and the Shadow Economy

Immigration policy goes beyond visa caps to enforcement. Strict employer sanctions and E-Verify mandates shove unauthorized workers into the informal economy, where labor protections vanish and wages sink. A study of Arizona’s 2007 Legal Arizona Workers Act, which required all employers to use E-Verify, found it cut formal employment among likely unauthorized immigrants by 17% but didn’t meaningfully lift wages or employment for native low-skilled workers. Instead, many unauthorized workers shifted to self-employment or moved to neighboring states.

This displacement effect points to a paradox: enforcement-only approaches can shrink the formal labor market without delivering the promised gains to native workers. Comprehensive reform that pairs enforcement with legal pathways can pull workers into the formal sector, improving wage transparency and tax compliance.

FAQ

Does immigration reduce wages for native-born workers?

Research shows the wage effects are small and concentrated among native workers with less than a high school education, who may see a 1% to 2% dip over a decade. For most native workers, immigration has negligible or slightly positive wage effects because immigrants often take jobs that complement rather than compete with native workers.

How does immigration affect job creation?

Immigrants are disproportionately likely to start businesses. In the United States, immigrants founded 25% of new companies, and those firms employed millions of workers. Plus, immigrant workers increase demand for local goods and services, which leads to job creation in sectors like retail, construction, and healthcare.

What is the fiscal impact of immigration on public budgets?

Over the long term, immigration tends to improve public finances because immigrants contribute more in taxes than they receive in benefits, especially when they are young and working. The Congressional Budget Office estimated that higher immigration would reduce the U.S. deficit by $1.2 trillion over ten years. The fiscal impact varies by skill level and the generosity of the welfare state.

Can immigration policy help with labor shortages?

Yes. Targeted immigration policies can address specific labor shortages in sectors like healthcare, agriculture, and technology. Countries like Canada and Australia use points-based systems to select immigrants with skills in high demand, while others use shortage occupation lists to fast-track visas for needed workers.

Conclusion: Calibration, Not Absolutes

Immigration policy is a powerful but blunt tool for shaping labor markets. The evidence pushes back against both the alarmist claim that immigrants steal jobs and the sunny view that all immigration is uniformly good. Instead, the data backs a calibrated approach: lining up visa programs with labor market needs, investing in native worker training, and making sure enforcement doesn’t shove workers into the shadows.

For policymakers, the job is to design systems that capture the long-term upside of immigration—innovation, entrepreneurship, and fiscal health—while cushioning the short-term costs for the most exposed workers. That means not just setting quotas but building the institutional muscle to adjust policies as economic conditions shift. In a global economy where talent moves fast, the countries that strike this balance will have a real competitive edge.