Unauthorized Immigration/Irregular Migration
Explore all research, analysis, commentary, and data on unauthorized immigrants and irregular migrants, terms used in different parts of the world to describe the individuals who lack the right to reside legally in their country of destination, as well as the policies and enforcement practices affecting them.
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Executive Action on Immigration: Six Ways to Make the System Work Better
Six executive actions could improve U.S. border control, integration, legal admissions, and fairness in enforcement without new laws.
Delegation and Divergence: 287(g) State and Local Immigration Enforcement
MPI Report release with authors MPI's Randy Capps and Muzaffar Chishti examining step localities are taking in enforcing immigration law and the possible impacts on communities. Jerry Gonzalez, Executive Director, Georgia Association of Latino Elected Officials, and Captain LeRoy Kirkegard, Las Vegas Metropolitan Police Department, provided comments.
The Evolution of Border Controls as a Mechanism to Prevent Illegal Immigration
Modern border controls combine technology and risk profiling. But without legal channels, they often displace rather than deter irregular migration.
E-Verify: Strengths, Weaknesses, and Proposals for Reform
E-Verify’s gains in speed and coverage are undercut by data errors, identity fraud, and gaps in worker protections.
States Assert New Activist Immigration Role in Altered Political Landscape
The 2010 U.S. elections spurred more than 20 states to pursue efforts modeled after Arizona’s SB 1070 and a coordinated push to challenge birthright citizenship.
Immigration Policy and Less-Skilled Workers in the United States: Reflections on Future Directions for Reform
The mixed impacts of less-skilled immigration suggest the need for legal channels, flexible visa numbers, and job portability reforms to build a more adaptive system.
Delegation and Divergence: 287(g) State and Local Immigration Enforcement
A study of the 287(g) program found that local police often used their delegated immigration powers to hold people for minor offenses, raising concerns about racial profiling.
Earned Legalization: Effects of Proposed Requirements on Unauthorized Men, Women, and Children
The brief models how common requirements in U.S. earned legalization plans, English skills, steady work, long-term U.S. residence, and monetary fines, would affect who qualifies.
More than IRCA: U.S. Legalization Programs and the Current Policy Debate
A century of U.S. registry and population‑specific legalization programs shows that the Immigration Reform and Control Act (IRCA) was just one piece of the puzzle.
Immigrant Legalization in the United States and European Union: Policy Goals and Program Design
Since the 1980s, legalization has given legal status to 3.5 million U.S. and 5 million EU immigrants; inclusive program designs prove more cost effective than restrictive ones.