U.S. employers can check whether the workers they hire are legally eligible for employment using E-Verify, a free electronic system run by the federal government. We use confidential data from the U.S. Department of Homeland Security to provide the first examination of whether increases in...

According to Troesken (2004), efforts to purify municipal water supplies at the turn of the 20th century dramatically improved the relative health of blacks. There is, however, little empirical evidence to support the Troesken hypothesis. Using city-level data published by the U.S. Bureau of the...

The Tiananmen Square protests in 1989 and ensuing government crackdown affected Chinese nationals not only at home but around the world. The U.S. government responded to the events in China by enacting multiple measures to protect Chinese nationals present in the U.S. It first suspended all...