[gone35]

What are the roadblocks?

It's hard to tell in the general case and it's still an open research subject in the empirical literature [1]; but for the specific case of labor inequality, there is consistent evidence that race differences in access to networks is one key roadblock --especially in the high-tech sector, where hiring 'through the vine' is common and encouraged [ibid, pp.15-16]. This is one aspect in which outreach efforts like sama's alone can make a huge difference.

[1] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2915460/pdf/nihm...