Immigration policy is labor market policy. The rules governing who may enter, work, and remain in the United States do not simply alter the size of the labor force; they change the administrative obligations of employers, the bargaining position of workers, the fiscal exposure of state agencies, and the distribution of wages across occupations and regions. For legislative and agency practitioners, the relevant question is rarely whether immigration affects labor markets, but which workers, which employers, and which state systems absorb the adjustment. This article examines the administrative and distributional channels through which immigration policy operates, with particular attention to employment verification, visa allocation, state-level variation, and the gap between statutory intent and implementation outcomes.
The Administrative Architecture of Work Authorization
Most labor market analysis of immigration begins with labor supply. But for practitioners, the more immediate question is administrative: who is authorized to work, how is that authorization verified, and what happens when verification fails? The current system rests on three overlapping instruments: the I-9 employment eligibility verification process, the E-Verify electronic confirmation system, and the visa categories that condition work authorization on employer sponsorship, family relationship, or humanitarian status.
The I-9 process imposes a compliance burden on every employer, but the burden is not uniform. Small firms without dedicated human resources staff face higher per-hire costs, and industries with high turnover—hospitality, agriculture, construction—absorb repeated verification costs. E-Verify, which is mandatory in some states and voluntary in others, adds a further layer of electronic confirmation. The distributional consequence is that employers in mandatory E-Verify states face a different labor pool than employers in neighboring states without such requirements. Workers who cannot pass electronic verification migrate to less restrictive jurisdictions, shifting labor supply across state lines without any change in federal statute.
E-Verify and the Geography of Labor Supply
State-level E-Verify mandates illustrate how administrative design shapes labor markets. Arizona’s 2007 Legal Arizona Workers Act required all employers to use E-Verify and imposed license revocation for noncompliance. Subsequent research found measurable declines in the state’s noncitizen working-age population and shifts in employment toward neighboring states. The policy did not eliminate unauthorized work; it relocated it. For state agencies, the mandate created a new enforcement function—auditing employer compliance—that required staff, data systems, and interagency coordination. The labor market effect was not a simple reduction in labor supply but a reallocation of workers, employers, and enforcement costs across jurisdictions.
For practitioners, the lesson is that verification policy is a state-level labor market instrument even when the underlying immigration statute is federal. A state that adopts mandatory E-Verify is not merely enforcing federal law; it is altering the competitive position of its employers relative to employers in non-mandatory states. The administrative burden falls on employers, but the labor market adjustment falls on workers, who must either find employers willing to accept the risk of noncompliance or move to states with weaker verification regimes.
Visa Allocation and Occupational Sorting
The visa system is the primary federal mechanism for channeling immigrant labor into specific occupations and industries. The H-1B program for specialty occupations, the H-2A program for temporary agricultural workers, and the H-2B program for seasonal nonagricultural workers each carry distinct administrative requirements and labor market effects. The H-1B program requires employers to attest to paying the prevailing wage and to file a labor condition application with the Department of Labor. The H-2A program requires employers to demonstrate that U.S. workers are not available and to provide housing and transportation. These requirements are not neutral; they shape which employers can access immigrant labor and at what cost.
The distributional effects are visible in wage and employment data. In occupations with high H-1B concentration, wage growth for entry-level workers has been slower than in comparable occupations without such concentration, though the magnitude varies by field and region. The administrative burden of the H-1B process—legal fees, filing timelines, and the annual cap lottery—favors larger employers with dedicated immigration counsel. Smaller employers, particularly in non-metropolitan areas, are effectively excluded from the program, not because they do not need skilled workers but because they cannot absorb the compliance costs. The result is a labor market where access to foreign talent is mediated by administrative capacity, not just by labor demand.
The H-2A Program and Agricultural Labor
The H-2A program offers a clearer example of administrative burden shaping labor markets. Employers must file a temporary labor certification, demonstrate that U.S. workers are not available, provide free housing, and pay the adverse effect wage rate, which varies by state and crop. The program has grown rapidly—from roughly 48,000 certified positions in 2005 to over 370,000 in 2023—but the growth has been uneven across states. California, Florida, Washington, and North Carolina account for a disproportionate share of H-2A positions, reflecting both agricultural concentration and the administrative capacity of state workforce agencies to process applications.
The labor market effect is not simply that H-2A workers fill jobs that U.S. workers will not take. The program also stabilizes the agricultural labor supply in states with strong employer associations and processing infrastructure, while leaving smaller growers in other states dependent on an increasingly uncertain unauthorized workforce. The administrative burden of H-2A compliance—housing inspections, wage determinations, and recruitment requirements—creates a two-tier agricultural labor market: one tier of employers who can navigate the program and another tier who cannot. For state agencies, the program imposes a workload that varies with the agricultural calendar and the volume of applications, creating staffing and funding challenges that are rarely addressed in federal appropriations.
State-Level Variation in Labor Market Outcomes
Immigration policy is implemented unevenly across states, and the labor market consequences follow that unevenness. States differ in their E-Verify mandates, their participation in the H-2A and H-2B programs, their occupational licensing rules for immigrants, and their enforcement of workplace standards. These differences create a patchwork of labor market conditions that is often invisible in national statistics but highly visible to employers and workers on the ground.
Occupational licensing is a particularly underappreciated channel. Many states require licenses for occupations that employ large numbers of immigrants—construction trades, cosmetology, health care support, and transportation. Licensing requirements often include citizenship or legal permanent residency conditions, English proficiency tests, or documentation requirements that are difficult for noncitizens to meet. The result is that immigrants with skills and experience in a given occupation may be barred from practicing in one state but eligible in another. This is not a federal immigration policy; it is a state labor market policy that operates through the licensing system. For practitioners, the interaction between immigration status and occupational licensing is a distributional question: which workers are excluded from which occupations, and what does that exclusion do to wages and labor supply in those occupations?
Enforcement and the Shadow Labor Market
Workplace enforcement of immigration law—through I-9 audits, E-Verify checks, and worksite raids—creates a shadow labor market that operates alongside the formal one. When enforcement is aggressive, unauthorized workers shift to employers who are willing to pay cash wages, ignore verification requirements, and accept the risk of penalties. These employers are often in the same industries—construction, restaurants, landscaping—but they operate outside the formal compliance system. The labor market effect is a bifurcation: a formal sector with documented workers and compliant employers, and an informal sector with unauthorized workers and noncompliant employers. The two sectors compete for the same customers and the same labor, but they face different cost structures and different risks.
For state agencies, the shadow labor market creates enforcement challenges that are distinct from federal immigration enforcement. State labor departments are responsible for wage and hour enforcement, workers’ compensation, and unemployment insurance. When workers are in the shadow labor market, they are less likely to file wage claims, less likely to report injuries, and less likely to access unemployment benefits. The administrative burden of protecting workers in the shadow labor market falls on state agencies, which must decide whether to coordinate with federal immigration enforcement or to maintain a firewall between labor standards enforcement and immigration status. That decision has direct labor market consequences: a firewall encourages workers to report violations, while coordination drives workers further underground.
Distributional Effects Across Workers
The labor market effects of immigration policy are not evenly distributed across workers. The most consistent finding in the empirical literature is that immigration has small average effects on native wages but larger effects on specific subgroups. Workers with less than a high school education, workers in occupations with high immigrant concentration, and workers in regions with rapid immigrant inflows are more likely to experience wage pressure or job displacement. At the same time, immigrant workers themselves bear the largest share of the adjustment costs: lower wages, higher rates of workplace injury, and limited access to social insurance.
The distributional question is not whether immigration policy creates winners and losers—it does—but how the administrative design of the policy shapes who wins and who loses. A visa program that ties workers to a single employer, as the H-1B and H-2A programs do, reduces worker bargaining power and increases employer control. A verification system that imposes costs on employers but not on workers shifts the burden of compliance to the party least able to absorb it. A licensing system that excludes noncitizens from certain occupations protects incumbent workers but reduces labor supply and raises prices for consumers. Each of these design choices is a distributional choice, and each has measurable labor market consequences.
The Role of Administrative Burden
Administrative burden is the central mechanism through which immigration policy shapes labor markets. Burden is not a side effect of policy; it is the policy. The I-9 form, the E-Verify query, the labor condition application, the temporary labor certification, the licensing requirement—these are the instruments through which the state allocates labor market access. When burden is high, fewer employers participate, fewer workers are authorized, and the labor market adjusts through informal channels. When burden is low, participation expands, but so does the potential for fraud and abuse. The practitioner’s task is to understand where the burden falls, how it changes behavior, and what the distributional consequences are.
For example, the H-1B cap of 85,000 visas per year creates a lottery that is administratively simple but distributionally arbitrary. Employers who file early in the filing window have no advantage over those who file late; the lottery is random. But the burden of preparing a petition—legal fees, documentation, and the uncertainty of the lottery—falls disproportionately on smaller employers and on workers who cannot afford to wait a year for a decision. The result is a labor market where access to skilled foreign workers is determined not by labor demand but by the capacity to absorb administrative uncertainty. That is a policy choice, and it has labor market consequences that are visible in the data on H-1B denial rates, employer concentration, and wage outcomes.
What Practitioners Should Watch
For legislative and agency practitioners, the labor market effects of immigration policy are best understood through four indicators: employer participation in verification and visa programs, state-level variation in licensing and enforcement, wage and employment outcomes in high-immigrant occupations, and the size and composition of the shadow labor market. These indicators are not always available in a single data source, but they can be assembled from Department of Labor program data, state workforce agency reports, and the American Community Survey.
The key analytical move is to treat immigration policy as a labor market intervention, not as a border enforcement question. When a state adopts mandatory E-Verify, the relevant question is not whether it reduces unauthorized employment—it does, at least in the formal sector—but how it changes the distribution of workers, employers, and enforcement costs across the state and its neighbors. When a federal agency changes the H-2A wage rate, the relevant question is not whether the rate is fair but how it shifts the competitive position of growers in different states and crops. When a licensing board adds a citizenship requirement, the relevant question is not whether the requirement is legal but how it reduces labor supply in the licensed occupation and raises prices for consumers.
A Note on Data Limitations
Any analysis of immigration policy and labor markets must confront the limits of the data. The unauthorized population is, by definition, difficult to measure. The Department of Homeland Security and the Pew Research Center produce estimates, but they are estimates with wide confidence intervals. The H-2A and H-2B program data are more reliable, but they capture only certified positions, not actual employment. The American Community Survey provides detailed labor market data by nativity and citizenship, but it undercounts unauthorized workers and misses the shadow labor market. Practitioners should treat all of these data sources as partial and should be skeptical of any claim that rests on a single number without acknowledging the measurement problem.
The same skepticism should apply to press-release claims about the labor market effects of immigration policy. A claim that a new enforcement initiative “protected American jobs” is not evidence; it is a political statement. The labor market effects of enforcement are distributed across workers, employers, and regions, and they are often visible only in the administrative data that agencies collect but rarely publish. The practitioner’s job is to ask for the data, to examine the distribution, and to report what the evidence actually shows.
Frequently Asked Questions
How does E-Verify affect labor markets in states that mandate it?
Mandatory E-Verify reduces the formal-sector employment of unauthorized workers in the state, but the effect is often a relocation of workers to neighboring states without mandates rather than a net reduction in unauthorized employment. Employers in mandatory states face higher compliance costs and a smaller labor pool, while employers in non-mandatory states may absorb the displaced workers. The labor market effect is therefore a geographic reallocation, not a simple supply reduction.
What is the administrative burden of the H-2A program for employers?
The H-2A program requires employers to file a temporary labor certification, demonstrate that U.S. workers are not available, provide free housing, and pay the adverse effect wage rate. The burden includes legal and filing costs, housing inspections, and recruitment requirements. The burden is higher for smaller employers and for employers in states with less developed processing infrastructure, which creates a two-tier agricultural labor market.
Why do state occupational licensing rules matter for immigration policy?
Occupational licensing rules often include citizenship or legal permanent residency conditions, English proficiency tests, or documentation requirements that are difficult for noncitizens to meet. These rules are state labor market policies that operate through the licensing system, and they can exclude immigrants from occupations even when federal immigration law would allow them to work. The result is state-level variation in labor supply and wages in licensed occupations.
What is the shadow labor market, and how does it affect state agencies?
The shadow labor market consists of employers and workers who operate outside the formal compliance system—cash wages, no I-9 verification, and no access to social insurance. When immigration enforcement is aggressive, unauthorized workers shift to the shadow labor market, which reduces their willingness to file wage claims or report injuries. State labor agencies face a choice between coordinating with federal immigration enforcement and maintaining a firewall between labor standards enforcement and immigration status, and that choice has direct labor market consequences.
Next Steps for This Publication
This article is the first in a planned series on the administrative and distributional effects of immigration policy. Future pieces will examine the H-1B lottery and employer concentration, the state-level implementation of E-Verify mandates, and the interaction between occupational licensing and immigrant labor supply. Readers with questions about specific state programs or data sources are encouraged to submit them for a recurring reader-question column. The goal is to build a durable reference for practitioners who need to understand not just what immigration policy says, but what it does—and to whom.