President Donald Trump speaks at a roundtable on immigration and border security at U.S. Border Patrol McAllen Station, during a visit to the southern border, Thursday, Jan. 10, 2019, in McAllen, Texas. (AP Photo/ Evan Vucci)
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This post is part of our new community-driven reporting project, Ask Immigration Decoded. Submit your questions, and we’ll answer the most popular questions on our blog, Immigration Decoded.

In this post, we’re answering a question we received from Callie: Please provide evidence-based facts, not just statements, about how undocumented people benefit the U.S. economy.

Blaming immigration — legal and undocumented — for depressing Americans’ earnings and economic prosperity is a constant theme of Donald J. Trump’s presidency.

It’s a claim that Trump campaigned on. It’s a claim he’s used to justify both the government shutdown and his controversial demand for $5.6 billion for a border wall. It’s also a subject complicated by immigration-restriction groups that produce reports about the alleged costs of immigration that appeal to immigration skeptics — but that economists have criticized as biased and methodologically flawed.   

So here is the bottom line: The consensus view among respected economists is that immigration on the whole plays an integral and beneficial role in the economy. Some research has found short-lived negative impact on immigrants already here, primarily, followed by high-school dropouts. But other research has found no initial negative impact or a positive effect on these same groups. Whether documented or not, new working-class immigrants — who are Trump’s primary target — tend to fill entry-level jobs in services and other industries that, in turn, help create higher-paying jobs typically filled by English-speaking citizens or immigrants who’ve been here longer.

Individual incidents of employers exploiting undocumented workers do occur, and they represent a real problem. But when considering the impact on the national economy, it’s wise to remember that undocumented workers represent a fraction of overall immigration nationwide. While unauthorized immigrants may be numerous in certain industries, as a group the undocumented are estimated at only 5 percent of the national labor force. Immigrants overall represent 17 percent.

It’s also useful to recall that before Trump’s rise, labor unions and small and large business associations were mostly on the same page: Both unions and businesses urged Congress to pass a comprehensive reform to legalize longtime undocumented workers, phase in required use of digital ID vetting and create a visa system that can adequately fill labor shortages as they develop.

Economists, too, argue that visa pool restrictions have chronically prevented employers from legally filling jobs with immigrants, who, nonetheless, have been getting hired. “The misalignment between restrictive laws and economic incentives has also caused the population of undocumented immigrants to expand rapidly,” University of California at Davis economist Giovanni Peri wrote in 2013.

This year, as in other years with virtually full employment, demand quickly outstripped availability of a limited number of seasonal non-immigrant non-agricultural H2B work visas. These are the temporary visas that Trump’s Mar-a-Lago Florida resort habitually uses to fill jobs, despite his “hire American” rhetoric.

In 2017, we reported on how Idaho exemplified America’s immigration dilemma.

We found that jobs that Americans occupied in a productive Idaho farm region wouldn’t exist were it not for the lower-paying entry-level jobs at dairies that undocumented immigrants filled, often using fake documents.

We met Idaho dairy owners involved in lobbying to persuade Congress to legalize dairy workers whom employers suspected were probably undocumented. At the same time, we met other Idahoans who were drawn to Trump’s anti-immigrant rhetoric — even though they owed their jobs in local cheese factories, trucking and other industries to dairy farms dependent on immigrants.

We also learned that these same townsfolk in Idaho didn’t understand the actual limits of the immigrant visa system.

Many agreed that dairies were reliant on immigrants because Americans had other options. But they were also under the false impression that dairy owners had access to visas, if they wanted, to sponsor workers, which they do not. Dairy farms, which are daily, year-round operations, cannot hire workers on H2B visas, for example. In addition, some townsfolk erroneously believed that if foreign workers wanted to work legally, all they had to do was get in a line in their countries and patiently wait a turn — also false.    

Their assumptions made it easier for local residents to buy into rhetoric excoriating immigrants.   

Don’t take the economic arguments from us, though: Check out the latest study by the National Academies of Sciences, or NAS, that exhaustively reviewed research on immigration, costs and benefits.  

We link to the NAS report in a story we did in 2018 about how former Trump Attorney General Jeff Sessions — while he was in the U.S. Senate — cherry-picked slanted arguments to help Trump mount a campaign theme claiming that immigration drives down Americans’ earnings.

This rhetoric isn’t hard for many in the public to swallow: The zero-sum view that with fewer workers, you naturally will have higher wages is commonly accepted around kitchen tables. But that’s not the prevailing view among economists about how the modern economy works.

According to economists who worked on the NAS report, the U.S. economy will continue to need immigrants to maintain healthy growth.

Here are some overarching NAS conclusions:

·       “Importantly, immigration is integral to the nation’s economic growth. Immigration supplies workers who have helped the United States to avoid the problems facing stagnant economies created by unfavorable demographics—in particular, an aging (and, in the case of Japan, a shrinking) workforce.”

·       “If the American economy grows and requires more workers both to replace those who retire and to create new firms and industries, the primary source of labor will be first and second-generational immigrants. This basic fact will hold at all levels, from low-skilled service jobs to professionals with postgraduate degrees.”

It’s also worth noting another substantial benefit Americans have been getting from undocumented immigrants: the substantial cash that the undocumented pay into Social Security—and will not get back.

Here’s a link to a Bipartisan Policy Center immigration explainer with multiple links to source material, including data straight from the Internal Revenue Service.  

“The IRS estimates that undocumented immigrants pay over $9 billion in withheld payroll taxes annually,” the report by the Washington, D.C.-based policy research group says. “Undocumented immigrants also help make the Social Security system more solvent, as they pay into the system but are ineligible to collect benefits upon retiring. In 2010, $12 billion more was collected from Social Security payroll taxes of undocumented workers than were paid out in benefits.”

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Susan Ferriss

Susan Ferriss joined CPI in 2011 and directs its immigration project. As a Cox Newspapers Latin America...