Racial segregation between U.S. workplaces is greater today than it was a generation ago. This increase happened alongside declines in within-establishment occupational segregation, on which most prior research has focused. We examine more than 40 years of longitudinal data on the racial employment composition of every large private-sector workplace in the United States to calculate between- and within-establishment trends in racial employment segregation over time. We demonstrate that the return of racial establishment segregation owes little to within-establishment processes, but rather stems from differences in the turnover rates of more and less homogeneous workplaces. Present research on employment segregation focuses mainly on within-firm processes. By doing so, scholars may be overstating the country's progress on employment integration and ignoring other avenues of intervention that may give greater leverage for further integrating firms.
