Census data show that the ratio of black to white unemployment rates, currently in excess of 2:1, was small or non-existent before 1940, widened dramatically during the 1940s and 1950s, and widened again in the 1980s. The authors decompose changes in the unemployment gap over the years 1880-1990...

The ratio of black to white unemployment rates is currently in excess of 2 to 1. We show that the racial unemployment gap was small or nonexistent before 1940, widened dramatically during the 1940s and 50s, and widened again in the 1980s. Using available U.S. Census data for the years 1880 to...