First, in repudiating what he refers to as the "myths" surrounding affirmative action, he contends that blacks had both higher rates of labor force participation and higher marriage rates before the 1960s' large-scale institution of civil rights laws and policies countering discrimination. Much of the economic upturn, which Sowell attributes entirely to personal initiative, must be put in the context of the postwar economic boom, which was accompanied by the widespread availability of manual jobs requiring little education. The post-civil rights period coincided with an economy that was experiencing steady de-industrialization. Significantly, manufacturing jobs that had been stepping-stones into the middle class for blacks from the U.S. South and immigrants from southern, eastern, and central Europe in the past, were fast eroding.