This paper examines how a large conditional grants program influenced school desegregation in the American South. Exploiting newly collected archival data and quasi-experimental variation in potential per-pupil federal grants, we show that school districts with more at risk in 1966 were more...

We use data on health plan choices by employees of Harvard University to compare the benefits of insurance competition with the costs of adverse selection. Moving to a voucher-type system induced significant adverse selection, with a welfare loss of 2 to 4 percent of baseline spending. But...

The Voting Rights Act of 1965, called one of the most effective pieces of civil rights legislation in U.S. history, generated dramatic increases in black voter registration across the South. We ask whether the increase in black voting rights was accompanied by an increase in blacks' share of...

The Voting Rights Act of 1965, called one of the most effective pieces of civil rights legislation in U.S. history, generated dramatic increases in black voter registration across the South. We ask whether the increase in black voting rights was accompanied by an increase in blacks' share of...

Over the past thirty years, U.S. manufacturing plants invested heavily in automation machinery. This paper shows these investments substituted for the least-skilled workers and complemented middle-skilled workers at equipment and fabricated metal plants. Specifically, it exploits the fact that...