Unauthorized immigration is on the rise again in the EU. Although precise estimates are hard to come by, proximity to nations in turmoil and the promise of a better life have drawn hundreds of thousands of irregular migrants to the EU in 2014-2015. Further complicating the ongoing challenge is...

E-Verify is a federal electronic verification system that allows employers to check whether their newly hired workers are authorized to work in the United States. To use E-Verify, firms first must enroll with the Department of Homeland Security (DHS). Participation is voluntary for most...

The U.S. economy has long relied on immigrant workers, many of them unauthorized, yet estimates of the inflow of unauthorized workers and the determinants of that inflow are hard to come by. This paper provides estimates of the number of newly arriving unauthorized workers from Mexico, the...