David J. Bier Profile picture
Feb 3 11 tweets 4 min read Read on X
Today @CatoInstitute published our report providing the first look at the fiscal effects of the wave of legal & illegal immigration over the last 3 decades. It shows immigrants created surpluses every year, by a combined $14.5 trillion, even as deficits grew Image
Our report covers all spending, federal, state, and local, updating the work of the National Academies' 2017 report. You can read my summary: cato.org/blog/cato-stud…
Or the full study: cato.org/white-paper/im…
How can new people cut the deficit? First, a significant portion of spending is "pure public goods," military & interest payments on old debt, that don't increase b/c of immigrants. This means the average new person is paying more in taxes than they receive in benefits... Image
And immigrants are better-than-average! Even tho they earn lower wages, they work at so much higher rates that they account for a greater share of total earned income, which results in a higher-than-average share of tax revenues. Immigrants pay more taxes. Image
On the spending side, immigrants don't cost more than the US-born. Here's everything the government spent money on over the last 30 years. Immigrants were much less costly in two areas: old age benefits and education. Why...? Image
For old age benefits, it's NOT because they're much less likely to be old. Instead, it's because they don't qualify for benefits, either b/c they are here illegally or don't have the required work history/didn't work for the government to qualify for a public pension. Image
For education, immigrants arrive in the US at the average age of about 25, meaning that the US gets workers without having to pay to educate them. They are more costly while in school due to bilingual education, but they're much less likely to be in school Image
What about needs-based assistance? Immigrants are overrepresented in the poverty population, but account for about the average rate for needs-based assistance. Status-based restrictions keep their use rates below the rate predicted by their poverty rate Image
When you put it all together, this is what the fiscal flows for immigrants have looked like for the last 30 years. Immigrants have reduced the deficit every year for 3 decades. Image
For decades, nativists have sold America this narrative that immigrant welfare is behind our deficits and debt. This figure shows how absurd that is. This is all government expenditures, federal, state, and local, for the last 3 decades. Immigrants are not to blame: Image
In the full report, we evaluate the effects of low-skilled immigrants, noncitizens, illegal immigrants, and children of immigrants. cato.org/white-paper/im…

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More from @David_J_Bier

Jan 21
Another judge describes how ICE intentionally brake checks ICE observers trying to cause accidents. If the observers can't stop in time, it can then label them "domestic terrorists" who "weaponized their vehicles," which is of course justification for killing them. Image
Here's an agent admitting on camera to this behavior:
Here's a federal judge describing this behavior in a case in Chicago:
Read 4 tweets
Jan 2
In 2025, @AlexNowrasteh and @CatoInstitute published an enormous amount of original immigration research. My analysis of border crossings under Biden is the most comprehensive explanation for why Biden's lack of enforcement didn't cause the crisis: alexnowrasteh.com/p/biden-didnt-…
In my 1st Trump 2.0 post, I predicted that Trump would cut legal entries more than illegal entries, which has already been proven indisputably correct. cato.org/blog/trump-wil…
@AlexNowrasteh published the only paper analyzing the monetary amount of welfare received by immigration status, finding that immigrants received in 2022 21 percent less welfare per capita than the US-born population cato.org/briefing-paper…
Read 20 tweets
Dec 22, 2025
ICE agents illegally break into a woman's bathroom in a NY nutrition bar manufacturing plant. "Pull up your pants," says a male agent. The agents only had a warrant to review employer documents. They didn't have a warrant to search for, detain, or arrest anyone there.
Agents illegally detained dozens of US citizens and demanded that they prove their citizenship. We need to defend our private property rights against trespassing government agents.
Utterly lawless: "Agents lined up Latino workers and released people they said were U.S. citizens. They questioned and detained 57 people, including people who said only that they wanted a lawyer." syracuse.com/news/2025/11/w…
Read 4 tweets
Dec 15, 2025
On Dec. 4, DOJ labeled people who impede or "dox" ICE agents "domestic terrorists." I document how DHS believes following, recording, and protesting agents is "impeding," and has a policy of threatening & arresting ICE observers. That's unconstitutional. A thread of threats...🧵 Image
The Constitution guarantees your right to follow, record, protest, and notify others about the agents and what you see. These are core First Amendment rights, and DHS has clearly ordered its agents to threaten and violate those rights. cato.org/blog/dhs-polic…Image
DHS agents have:
1) a policy of threatening to arrest ICE observers;
2) a policy of permitting the brandishing of weapons against ICE observers;
3) a policy of arresting ICE observers for honking; and
4) a policy of crashing into drivers who follow them.
Read 50 tweets
Dec 3, 2025
A US citizen woman screams: "I'm a US citizen. Please help me. Why are you doing this?" Population Control Police manhandled her, brought her to the ground, handcuffed, loaded her into a vehicle. Later released her. Kavanaugh stop or something worse? -12/3/25
"Video recorded by a Miami Herald reporter shows an agent forcibly pulling the woman from her car. Agents with ICE, CBP and U.S Border Patrol could be seen." miamiherald.com/news/local/com…
Read 4 tweets

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