This chapter examines the causes and consequences of black-white residential segregation in the United States. Segregation can arise through black self-segregation, collective action to exclude blacks from white neighborhoods, or individual mobility of white households. Historically, whites used...

The spatial mismatch hypothesis posits that employment decentralization isolated urban blacks from work opportunities. This paper focuses on one large employer that has remained in the central city over the twentieth century - the U.S. Postal Service. We find that blacks substitute towards...