The percentage of blacks who were in poverty declined from 87% back in 1940 to a 47% in 1960. The long term trend of blacks in poverty was down and continued through the 60s but it wasn't accelerated at all. And after about 1970 it wasn't accelerating even worth talking about.
Thomas Sowell of Stanford University's Hoover Institution talks with EconTalk host Russ Roberts about the ideas in his new book, Economic Facts and Fallacies. He discusses the misleading nature of measured income inequality, CEO pay, why nations grow or stay poor, the role of intellectuals and experts in designing public policy, and immigration.