The Scale of Modern Migration
What the Numbers Actually Say
In 2024, 6.2 million people became permanent residents of OECD countries — a 4% decline from the previous year but still 15% above pre-pandemic levels. ✓ Established Fact [1] These are not abstract numbers. They represent the largest sustained movement of people across borders in modern history — and the policy response to them will define the economic trajectory of every ageing democracy for the next generation.
The scale of contemporary migration is routinely misunderstood in both directions. Anti-immigration politicians inflate the numbers; pro-immigration advocates minimise the genuine challenges of integration. The data tells a more complicated story. Permanent migration to OECD countries peaked in 2023 and has since declined modestly, but the cumulative effect of elevated flows since 2021 has fundamentally reshaped the labour forces of destination countries. [1]
The composition of these flows matters as much as their volume. Across the OECD, 77% of immigrants were economically active in 2024, with 71% in employment and fewer than 10% unemployed. ✓ Established Fact [1] This is not the profile of a population dependent on the welfare state. It is the profile of a workforce — one that is younger, more mobile, and increasingly better educated than the cohorts that preceded it.
The educational profile of immigrants has shifted dramatically. Among those arriving in EU countries in the five years to 2020, 39% held tertiary qualifications — up from 25% a decade earlier. ✓ Established Fact [14] Language acquisition follows a similar trajectory: 70% of immigrants with ten or more years of residence in the EU have advanced proficiency in the host-country language, compared with 40% of recent arrivals. [14]
The geographic distribution of these flows is uneven. Germany received approximately 700,000 new permanent residents in 2023. Canada took in a record 470,000. Japan — facing the most severe demographic crisis in the OECD — admitted just 1.4 new permanent migrants per 1,000 inhabitants. [1] These differences reflect not just policy choices but fundamentally different conceptions of national identity and economic strategy.
Public perception of these numbers bears almost no relation to reality. Citizens across OECD countries consistently overestimate the immigrant share of their population by a factor of two or more. [9] This perception gap is not merely an intellectual curiosity — it is the engine that drives policy. Governments respond to what voters believe, not what the data shows, and the consequences of that misalignment are measured in trillions of dollars and millions of lives.
Citizens across developed countries consistently overestimate immigrant populations by a factor of two, overestimate immigrant crime by a factor of three, and underestimate immigrant fiscal contributions by orders of magnitude. This gap is not a knowledge deficit — it is a structural feature of how immigration information is produced and consumed. Policy built on misperception produces misallocated resources, missed economic opportunities, and human suffering that better data alone cannot fix.
The United States illustrates the volatility. Net migration surged from approximately 990,000 annually in 2020-2021 to 3.3 million in 2023, before collapsing to a projected 500,000 in 2025. ✓ Established Fact [13] These swings are driven by policy, not by the underlying demand for labour. The demographic need for immigration is structural and accelerating; the political willingness to accept it is cyclical and declining.
The Economic Engine
GDP, Tax Revenue, and the Fiscal Ledger
The Congressional Budget Office estimates that the 2021-2026 immigration surge will boost US nominal GDP by $8.9 trillion — 2.4% — over the next decade, while reducing federal deficits by $0.9 trillion. ✓ Established Fact [2] The fiscal arithmetic of immigration is not a matter of opinion. It is a matter of accounting — and the ledger is overwhelmingly positive at the federal level.
The mechanism is straightforward. Immigrants work, pay taxes, consume goods and services, and start businesses. The CBO projects that the immigration surge will generate $0.8 trillion in additional federal income and payroll tax receipts over 2025-2034, against $0.3 trillion in additional federal outlays — a net fiscal benefit of approximately $500 billion at the federal level alone. [2]
The longer-term picture is even more striking. A comprehensive analysis by the Cato Institute, covering the period 1994-2023, found that immigrants generated a cumulative fiscal surplus of $14.5 trillion in real 2024 dollars, including $3.9 trillion in savings on interest on the national debt. ◈ Strong Evidence [10] This is not a marginal contribution. It is a structural pillar of federal solvency.
The Congressional Budget Office projects that increased immigration generates $0.8 trillion in additional tax receipts against $0.3 trillion in additional outlays, with the net effect of reducing cumulative federal deficits by approximately $0.9 trillion over the 2024-2034 period. This calculation accounts for both the revenue generated by immigrant workers and the costs of services they consume. [2]
The fiscal picture varies by level of government. While the federal impact is clearly positive, state and local governments bear a disproportionate share of costs — particularly for education, healthcare, and emergency services — while receiving a smaller share of tax revenue. [2] This fiscal mismatch between levels of government is a genuine structural problem, but it is a problem of revenue distribution, not of immigration itself.
The OECD's cross-country analysis confirms the pattern. The net fiscal impact of immigration expressed as a percentage of GDP is "generally small" across member states, "with a few exceptions where countries have large immigrant populations, such as Switzerland and Luxembourg, where the net fiscal impact is large and positive." ✓ Established Fact [1]
The demographic imperative makes this fiscal contribution increasingly critical. The US-born working-age population has been shrinking by 270,000 people per year since 2020. ✓ Established Fact [11] The CBO now projects that immigration will account for essentially 100% of total US population growth between 2025 and 2035. [11] Without immigration, the American economy does not grow. It contracts.
The direct effect on GDP growth owing to less output created by immigrants is roughly 0.2 percentage points in 2025 and 0.1 percentage point in 2026.
— Dallas Federal Reserve, Economic Analysis, July 2025The labour market impact on native workers is the most intensely debated dimension of the economic question. The overall consensus among economists — including those with sharply different views on immigration policy — is that the aggregate wage effects are small. [3] But "aggregate" conceals distributional effects. Harvard economist George Borjas has consistently argued that low-skilled immigration depresses wages for the least-educated native workers — by as much as 10-30% in the case of the 1980 Mariel boatlift. ⚖ Contested
Nobel laureate David Card, studying the same event, found no significant negative wage impact. A 2025 meta-analysis confirmed that the methodological debate remains unresolved — the answer depends heavily on whether researchers use national skill-cell approaches (Borjas) or spatial approaches (Card). [3] What is clear is that any negative wage effects are concentrated among the lowest-skilled native workers — precisely the population least able to absorb them.
Immigrants in OECD countries earn 34% less than native-born workers of the same age and gender in their first year of employment — but this gap narrows to 21% after five years and continues to shrink over time, partly driven by immigrants moving to higher-paying sectors and firms. ✓ Established Fact [1] Two-thirds of the initial gap is attributable to immigrants working in lower-paying sectors, not to lower productivity. [1]
The Innovation Premium
Patents, Startups, and the Entrepreneurial Edge
Nearly half of Fortune 500 companies — 231 out of 500, or 46.2% — were founded by immigrants or their children, generating $8.6 trillion in combined annual revenue and employing 15.4 million people worldwide. ✓ Established Fact [6] The innovation case for immigration is not marginal. It is existential.
The data on immigrant innovation is among the most robust in the entire immigration literature. Immigrants account for 16% of all US-based inventors but produce 23% of all patents. ✓ Established Fact [7] When measured by patent citations — a proxy for the importance of innovations — the immigrant contribution is even larger. A comprehensive NBER analysis concluded that 32% of total US innovative output since 1990 is attributable to immigrants. [7]
The entrepreneurial dimension is equally striking. Across OECD countries, 17% of the self-employed are migrants — up from 11% in 2006. [1] This increase translates into measurable job creation: an estimated additional 0.2 jobs per additional working-age migrant through entrepreneurship alone, across 25 OECD countries. From 2011 to 2021, more than 3.9 million jobs were created through migrant self-employment in these countries, corresponding to 15% of total employment growth. [1]
NBER research demonstrates that immigrants are disproportionately represented in US innovation. They produce 23% of all patents despite being 16% of the inventor workforce, and 32% of total US innovative output since 1990 is attributable to immigrant inventors. Mixed founder teams — combining immigrant and US-born entrepreneurs — file 117% more patents than immigrant-only startups and 28% more than native-only startups. [7]
The collaboration effect is particularly notable. Research from UC Berkeley published in 2025 found that mixed founder teams — combining immigrant and US-born entrepreneurs — file 117% more patents than immigrant-only startups and 28% more than US native-only startups. [7] Mixed-founder startups are 44% larger and 35 percentage points more likely to secure funding within three years. The innovation premium is not simply about bringing in talented individuals — it is about the cognitive diversity that emerges when different perspectives collide.
Immigrant startups create between 210,250 and 785,900 jobs per year in the United States alone. [6] The companies founded by first-generation immigrants on the 2025 Fortune 500 list include some of the most consequential enterprises in the global economy — firms in technology, healthcare, finance, and manufacturing that collectively shape market structures worldwide.
The innovation premium from immigration is not simply additive — it is multiplicative. Mixed founder teams combining immigrant and native-born entrepreneurs outperform both homogeneous groups by wide margins. This suggests that the economic value of immigration extends beyond the individual skills immigrants bring to the synergies they create in combination with the native-born population. Restricting immigration does not merely lose the immigrant contribution; it loses the collaboration premium that cannot be replicated any other way.
The pattern holds across countries. In the OECD, migrant entrepreneurs are overrepresented in high-growth sectors including technology, healthcare, and professional services. [1] The reasons are partly self-selection — people willing to uproot their lives tend to have higher risk tolerance and greater entrepreneurial drive — and partly structural. Immigrants often identify market gaps invisible to native-born populations, particularly in connecting their destination country to global markets.
The policy implications are significant. Countries competing for high-skilled immigrants — the United States, Canada, Germany, the United Kingdom, and Australia — are engaged in what economists describe as a global talent race. The countries that win this race will dominate the industries of the next generation. The countries that lose it — or that choose not to compete — will find their innovation ecosystems hollowed out from within.
The Crime Question
Data Versus Narrative
Between 1980 and 2022, the immigrant share of the US population more than doubled — from 6.2% to 13.9% — while the total crime rate dropped by 60.4% and violent crime fell by 34.5%. ✓ Established Fact [5] The data does not merely fail to support the immigration-crime narrative. It demolishes it.
The empirical evidence on immigration and crime is among the most consistent in the social sciences. A systematic review published in the Journal of Economic Perspectives in Winter 2024 examined the international evidence across multiple countries and found no significant positive relationship between immigration and crime rates. ✓ Established Fact [3]
The European evidence is particularly compelling. Researchers analysed 15 years of data across 216 regions in 23 European countries and found no significant link between immigration levels and crime rates. [3] This is not a single study in a single country. It is a continental-scale dataset covering more than a decade — and it finds nothing.
In the United States, the evidence is even more granular. The National Institute of Justice — the research arm of the US Department of Justice — published data showing that undocumented immigrants are arrested at less than half the rate of native-born US citizens for violent and drug crimes, and at a quarter of the rate for property crimes. ✓ Established Fact [4] This data comes not from an advocacy organisation but from the research division of the federal agency responsible for law enforcement.
The US National Institute of Justice found that undocumented immigrants are arrested at less than half the rate of native-born US citizens for violent and drug crimes, and at a quarter the rate for property crimes. Meanwhile, the immigrant share of the US population doubled from 6.2% to 13.9% between 1980 and 2022 as the total crime rate dropped 60.4%. [4] [5]
The counterargument typically raised is that immigrants are overrepresented in prison populations in some countries. This is true in certain cases — a 2025 analysis found that non-British citizens were approximately 3.5 times more likely than British citizens to be arrested for sexual offences, for example. ⚖ Contested But incarceration data is a poor proxy for offending rates. Immigrants are more likely to be detained pre-trial, less likely to receive bail, and more likely to receive custodial sentences for equivalent offences. They are also subject to immigration-specific offences that have no native-born equivalent.
The ecological correlation — rising immigration coinciding with falling crime — does not prove that immigration reduces crime. Correlation is not causation, and multiple factors have driven the long-term decline in crime rates across the developed world. But the absence of any positive correlation in any major multi-country study is itself significant. If immigration were a significant driver of crime, it would appear somewhere in the data. It does not. [3]
The gap between public belief and empirical evidence on immigration and crime is wider than on any other policy issue. Voters who believe immigrants commit more crime are more likely to support punitive enforcement, less likely to support integration spending, and more likely to elect politicians whose policies make integration harder — creating the very outcomes they fear. The immigration-crime myth is not merely wrong. It is self-fulfilling.
The mechanisms that likely explain lower immigrant crime rates are well-documented. Immigrants — particularly those who are undocumented — have strong incentives to avoid contact with law enforcement. They are also self-selected for motivation and risk aversion; the act of migration itself selects for individuals willing to invest in long-term outcomes. [5] Community-level studies consistently find that neighbourhoods with higher immigrant concentrations have lower crime rates than comparable neighbourhoods with fewer immigrants.
The political economy of the crime narrative is revealing. Research consistently shows that media coverage of immigrant crime is disproportionate to its frequency, and that this coverage is amplified during election cycles. [15] The perception of immigrant criminality is not derived from personal experience — most voters have no direct experience with immigrant crime — but from mediated narratives that systematically overrepresent exceptional cases.
None of this means that immigration-related crime does not exist or does not matter. Individual cases of serious crime committed by immigrants are real tragedies for the victims. But the policy question is whether immigrants as a population commit more crime than the native-born population — and the answer, across dozens of countries and hundreds of studies, is consistently no. [3]
The Integration Challenge
What Succeeds, What Fails, and Why
Integration is where the immigration debate shifts from aggregate data to lived experience — and where the genuine failures of policy are concentrated. Immigrants in OECD countries earn 34% less than native-born workers in their first year, a gap driven primarily by sectoral segregation rather than productivity differences. ✓ Established Fact [1]
The earnings gap tells a story of structural mismatch, not of immigrant inadequacy. Two-thirds of the initial 34% wage gap between immigrants and native-born workers of the same age and gender is attributable to immigrants working in lower-paying sectors and firms — not to lower skills or productivity. [1] The gap shrinks by one-third within five years and by half within ten, as immigrants move to higher-paying sectors. But the initial years of underemployment represent a massive waste of human capital.
Credential recognition is the single most actionable policy lever. Across the OECD, immigrants with foreign qualifications are systematically underemployed — working in roles that do not require their level of education. Many OECD countries have updated qualification recognition policies to improve speed and flexibility, but the process remains slow, expensive, and inconsistent. [1] A doctor driving a taxi is not an immigration failure. It is a recognition failure — and it costs the destination country as much as it costs the immigrant.
Language acquisition is the other decisive factor. Among immigrants with ten or more years of residence in the EU, 70% have advanced proficiency in the host-country language. Among recent arrivals, the figure is 40%. ✓ Established Fact [14] The countries with the best integration outcomes — Canada, Germany, Sweden — invest heavily in language training. The countries with the worst — those that treat language as the immigrant's problem — pay for it in lower employment rates, higher welfare costs, and weaker social cohesion.
The second generation tells the success story that first-generation data often obscures. Children of immigrants in OECD countries consistently outperform their parents' generation on virtually every integration metric — educational attainment, employment rates, language proficiency, and social participation. [14] Integration is a generational process, and the countries that invest in it reap returns measured in decades.
The OECD's 2025 report highlights a critical finding on firm-level integration. Policies that target barriers to job mobility — information on job search, career counselling, professional network development, improved local transportation, and access to affordable housing — should feature more prominently in the integration toolkit. [1] The failure to integrate immigrants is overwhelmingly a failure of systems, not of people.
Across OECD countries, immigrants with foreign qualifications are systematically underemployed in roles below their education level. The economic cost is borne by both the immigrant and the destination country. Many countries have updated their recognition policies, but the process remains slow and inconsistent. A surgeon working as a care assistant, an engineer driving a delivery van — these are not integration failures. They are bureaucratic failures with measurable GDP costs.
The integration failures that dominate public debate — cultural clashes, residential segregation, welfare dependency — are real in specific contexts but are not representative of the overall pattern. The data consistently shows that the primary determinants of integration success are host-country language proficiency, credential recognition, labour market access, and the quality of settlement services. [14] Countries that invest in these areas — notably Canada and Germany — achieve better outcomes. Countries that do not — and then blame immigrants for failing to integrate — are confusing cause and effect.
The Housing Pressure Point
Where the Genuine Problem Lies
Immigration inflows equal to 1% of a county's population are associated with increases in median housing prices of 3.5% and rents of 2.0%. ◈ Strong Evidence [8] This is the immigration problem that deserves the attention currently wasted on manufactured crime narratives — a genuine, measurable pressure on housing markets already constrained by decades of underbuilding.
The housing impact of recent immigration is real, quantifiable, and concentrated in specific markets. During the 2022-2024 immigration surge, an estimated 700,000 additional immigrant households formed in the United States, of which approximately 600,000 were renters — equivalent to 133% of the new multifamily housing units completed in an average year. ◈ Strong Evidence [8] In markets where housing supply is already constrained, this additional demand has contributed to rent increases.
The critical nuance, however, is that immigration intersects with a pre-existing housing crisis rather than creating one. The timing of the recent surge does not align with the high growth in both rents and home prices that occurred at the start of the pandemic. [8] Foreign-born householders accounted for 25% of household growth from 2019-2023 — a significant share, but one that leaves 75% of demand-side growth attributable to native-born households.
The supply side complicates the picture further. Immigration is not just a source of housing demand — it is a critical source of housing supply. Immigrants are disproportionately represented in the construction workforce, and restrictions on immigration directly constrain the labour available to build housing. [8] Reducing immigration to ease housing pressure may therefore be self-defeating if it simultaneously reduces the construction capacity needed to expand supply.
The geographic concentration of the problem matters. Housing pressure from immigration is not uniformly distributed — it is concentrated in gateway cities and regions with already-tight housing markets. In areas with elastic housing supply, the price effect of immigration is negligible. In areas with constrained supply — major coastal cities, university towns, tight rental markets — the effect is significant. [8]
The policy response to immigration-driven housing pressure should focus on the constraint that actually binds: supply. Zoning reform, accelerated permitting, investment in affordable housing, and expansion of the construction workforce — including through immigration — are the interventions that address the root cause. Reducing immigration to reduce housing demand is like reducing the number of patients to solve a hospital shortage. The problem is capacity, not people. [8]
Immigrants simultaneously increase housing demand and supply the labour needed to build housing. Restricting immigration to ease housing pressure may be self-defeating — a 2025 analysis found that immigration slowdowns in 2025 are expected to decrease rental demand but also constrain the construction workforce needed to address the underlying supply deficit. The genuine solution is not fewer people but more homes, faster permitting, and reformed zoning — interventions that improve housing for everyone, immigrant and native-born alike.
The political framing of housing and immigration reveals a consistent pattern. Politicians who blame immigrants for housing costs rarely propose the supply-side interventions — zoning reform, construction investment, social housing — that would actually address the problem. This suggests the housing argument functions more as a rhetorical device to justify restrictionism than as a genuine policy prescription. [13]
The 2025 immigration slowdown in the United States is providing a natural experiment. As net migration collapses from 2.2 million (2024) to a projected 500,000 (2025), its effects on both housing demand and construction capacity will become measurable within months. [13] Early indicators suggest that reduced immigration is already constraining the construction sector more than it is easing housing prices — exactly the paradox the data predicts.
The Policy Landscape
Five Countries, Five Approaches
The global policy response to immigration reveals five fundamentally different strategies — from Canada's points-based pragmatism to Japan's demographic denial, from Australia's offshore deterrence to the EU's solidarity framework and America's enforcement-first turn. ✓ Established Fact [12] Each approach produces different outcomes. The data is clear about which ones work.
The EU Pact on Migration and Asylum, adopted in 2024 with full application from June 2026, represents the most comprehensive overhaul of migration governance in two decades. Ten interconnected legislative acts establish a solidarity mechanism — a pool of 21,000 relocations or €420 million in financial contributions for 2026 — alongside strengthened border procedures and a common approach to returns. ✓ Established Fact [12] Whether it works will depend on implementation — the Schengen Area has a long history of ambitious frameworks undercut by uneven national enforcement.
Germany has emerged as the OECD's most pragmatic reformer. The 2023 Skilled Workers Immigration Act introduced fast-track procedures for foreign workers in shortage sectors — healthcare, IT, engineering, skilled trades, and transport — with accelerated processing for the first 25,000 applicants. [1] Germany received approximately 700,000 new permanent residents in 2023, making it the largest immigration destination in Europe by volume. The approach reflects a calculated bet: that the economic costs of an ageing, shrinking workforce exceed the political costs of sustained high immigration.
Canada's points-based system has long been the benchmark for managed immigration. But 2024-2025 marked a significant pivot. For the first time, Canada set a cap on the total number of temporary residents — including international students — at 6.2% of the population, with a target to reduce this to 5% by 2027. [1] Temporary labour migration to Canada decreased by 8% in 2024. The Canadian reversal suggests that even successful immigration systems face political sustainability limits.
The Pragmatist Case — Managed Immigration Works
CBO projects $0.9 trillion deficit reduction from the US immigration surge over a decade. The Cato Institute calculates $14.5 trillion cumulative surplus 1994-2023.
46.2% of Fortune 500 companies founded by immigrants or their children. 32% of US innovative output since 1990 attributable to immigrants.
US-born working-age population shrinking by 270,000/year. Immigration accounts for 100% of projected population growth 2025-2035.
Undocumented immigrants arrested at less than half the rate of native-born for violent crime. No significant immigration-crime link in any major cross-country study.
Wage gap shrinks from 34% to 21% within five years. 70% of long-term immigrants achieve advanced host-language proficiency. Second generation outperforms on virtually every metric.
The Sceptic Case — Genuine Costs Are Real
Borjas research shows 10-30% wage drops for high school dropouts in localised immigration surges. The distributional impact falls on the most vulnerable native workers.
1% immigration inflow associated with 3.5% housing price and 2.0% rent increases. 600,000 new immigrant renter households 2022-2024 in a supply-constrained market.
While the federal fiscal impact is positive, state and local governments bear disproportionate costs for education, healthcare, and emergency services.
34% earnings gap in year one. Credential recognition remains slow and inconsistent. Cultural integration challenges real in specific contexts.
Even Canada is reducing immigration targets. Public tolerance has limits. Democratic legitimacy requires consent, not just economic efficiency.
Australia's approach combines a points-based skilled migration programme with one of the harshest deterrence systems in the world. Offshore processing on Nauru costs approximately A$5.6 million per person per year for roughly 100 detainees — a Human Rights Watch report in March 2026 described the programme as "cruel and costly." [12] Australia's permanent migration programme remains at 185,000 places for 2025-26, with continued emphasis on skilled migration. The country demonstrates that deterrence and pragmatism can coexist — but at extraordinary financial and humanitarian cost.
Japan occupies the opposite extreme. With just 1.4 new permanent migrants per 1,000 inhabitants in 2024, Japan has the lowest immigration rate among major OECD economies — despite facing the most severe demographic crisis. [1] Japan's population is declining by approximately 800,000 per year, and its working-age population is shrinking faster than any other major economy. The economic consequences of demographic decline without immigration are already visible in labour shortages, fiscal pressure, and declining rural communities.
The United States in 2025-2026 has pivoted sharply toward enforcement. Visa pauses, shortened work permit validity, H-1B reforms favouring higher-wage applicants, and aggressive removal operations have collapsed net migration from 2.2 million (2024) to a projected 500,000 (2025). ✓ Established Fact [13] The CBO and Dallas Federal Reserve both project measurable GDP losses from reduced immigration — roughly 0.2 percentage points of GDP growth in 2025 alone. [13]
| Risk | Severity | Assessment |
|---|---|---|
| Demographic decline without immigration replacement | US-born working-age population shrinking by 270,000/year. Without immigration, total population growth flatlines by 2035. Japan demonstrates the endgame: labour shortages, fiscal collapse, declining communities. | |
| Housing market pressure in supply-constrained areas | Immigration inflows of 1% of county population associated with 3.5% housing price increases. Concentrated in gateway cities with pre-existing supply deficits. Paradoxically, reducing immigration also constrains construction labour. | |
| Low-skilled wage competition | Contested but real for the lowest-skilled native workers. Borjas estimates 10-30% wage impact in localised surges. Aggregate effects small, but distributional impacts fall on those least able to absorb them. | |
| Integration failure and social cohesion erosion | Countries investing in language, credential recognition, and settlement services achieve good outcomes. Those that do not — and then blame immigrants — create self-fulfilling failures. The risk is policy failure, not immigration itself. | |
| Political backlash and policy overcorrection | Even countries with successful immigration systems (Canada) are reducing targets. The US has collapsed immigration by 77% in one year. Democratic legitimacy requires public consent, but consent built on misinformation produces suboptimal policy. |
The UK's experience with the Rwanda scheme — spending £700 million without deporting a single person before the programme was cancelled — illustrates the limits of deterrence-based approaches. Rwanda has since sued the UK at the Permanent Court of Arbitration in The Hague, seeking £50 million in compensation. [12] The episode demonstrates a recurring pattern: enforcement-heavy policies are politically popular, expensive to implement, and produce minimal measurable reduction in migration flows.
What the Evidence Actually Tells Us
The Gap Between Data and Debate
The immigration debate in every developed country is conducted in a parallel universe from the immigration evidence. A record-high 79% of Americans now say immigration is good for the country — yet the policy response is the most restrictive in decades. ✓ Established Fact [9] The gap between what the data shows and what policy delivers is the most consequential immigration problem of all.
The evidence assembled in this report points in a consistent direction. Immigration generates net positive fiscal impacts at the federal level. ✓ Established Fact [2] It drives disproportionate innovation and entrepreneurship. [7] It shows no significant correlation with crime rates across dozens of countries and hundreds of regions. [3] It is the sole source of projected population growth in the United States for the next decade. [11]
The genuine problems are real but different from the ones dominating public debate. Housing pressure from immigration is measurable and concentrated in supply-constrained markets — but the solution is more housing, not fewer people. [8] Wage competition for low-skilled native workers is contested but plausible — but the solution is minimum wage policy, training, and labour protections, not border walls. Integration failures are real where countries underinvest in language training and credential recognition — but the solution is investment, not exclusion.
Across OECD countries, the empirical evidence consistently shows net positive fiscal impacts, no crime correlation, and disproportionate innovation from immigration. Yet policy in many countries is moving toward restriction. The CBO projects that reduced immigration will cost the US 0.2 percentage points of GDP growth in 2025 alone. The gap is not a knowledge deficit — it is a structural failure of how democratic societies process complex evidence on emotionally charged issues. [13]
The public opinion data reveals an important shift. The share of Americans wanting immigration reduced dropped from 55% in 2024 to 30% in 2025 — a 25-percentage-point swing in a single year. ✓ Established Fact [15] Threat perception fell from 50% to 36%. [9] Support for decreasing legal immigration collapsed from 33% to 21%. [15] The public, it appears, is moving faster toward the evidence than the politicians.
The demographic clock is not political. It does not respond to election cycles or policy pivots. The median age of the US population has risen from 32.9 in 1990 to 39.1 in 2024. The share of the population over 65 was 12.4% in 2007, 17.9% in 2024, and will reach 21.2% by 2035. [11] Every restriction on immigration accelerates the fiscal pressure of an ageing population. Every restriction on immigration shrinks the tax base that funds pensions, healthcare, and social security. The arithmetic is remorseless.
The U.S.-born labor force will shrink over the next decade. Achieving historically normal GDP growth rates will be impossible, unless immigration flows are sustained.
— Economic Policy Institute, Labour Force Analysis, 2025The countries that will thrive in the coming decades are those that manage immigration effectively — not those that restrict it most successfully. Effective management means investing in integration, matching immigrants to labour market needs, building housing, recognising credentials, and teaching languages. It means being honest with the public about both the benefits and the costs. And it means building policy on evidence rather than narrative.
The evidence on immigration is not ambiguous. It is not a matter of perspective. The fiscal ledger is positive. The crime correlation is nonexistent. The innovation premium is enormous. The demographic need is existential. The genuine problems — housing, low-skill wage competition, integration quality — have solutions that are orthogonal to restriction. Every dollar spent on enforcement that could have been spent on integration is a dollar that makes the problem worse while claiming to solve it.
The immigration debate suffers from a structural asymmetry. The costs of immigration are visible, concentrated, and immediate — a new family in a crowded school, a construction site with foreign workers, a headline about an immigrant crime. The benefits are diffuse, cumulative, and often invisible — lower prices, more innovation, a broader tax base, a younger workforce. Democratic politics systematically overweights visible costs and underweights diffuse benefits. The result is policy that addresses the symptoms voters can see while ignoring the structural contributions they cannot. The immigration evidence does not need to be discovered. It needs to be heard.
The 6.2 million people who became permanent residents of OECD countries in 2024 entered a policy landscape shaped more by perception than by evidence. They entered countries that need them more than they acknowledge, that benefit from them more than they measure, and that debate them more than they understand. The data on immigration is not a political argument. It is an accounting statement. And the accounts are clear.