The civil rights movement of the 1960s improved the political and legal status of African Americans, but the quest for equality in employment and economic well-being has lagged behind. Blacks are more than twice as likely as whites to be employed in lower-paying service jobs or to be unemployed, are three times as likely to live in poverty, and have a median household income barely half of that for white households. What accounts for these disparities, and what possibilities are there for...