A large part of this problem is job market discrimination. One study found that job applicants with "black sounding" names (researchers gave Lakisha Washington and Jamal Jones as examples) were less likely to get called back for an interview than their counterparts with the same qualifications who had "white sounding" names (like Emily Walsh or Greg Baker). And some researchers have suggested that drug testing would improve the prospects of black job-seekers because hiring managers are more likely to assume they’ve used drugs and are less likely to discriminate when presented with actual evidence to the contrary.
Black men also tend to be underrepresented in management and professional occupations and over-represented in low-wage work. In 2011, researchers found that a $10,000 increase in the average annual income of an occupation translated into a 7 percentage point drop in the share of black men doing that job.
Source: huffingtonpost.com by Jillian Berman