In order to really make these types of statistics have any meaning, I think there would need to be some commentary by the people going through the applications to prove just how much of the prejudice is racial, and how much may be due to other factors.
Non-race factors:
One college may be preferential to the employer than another, for any number of reasons. I personally feel a private college education is better than a public college education. If I were reading the resume, I will base points on that.
Experience with a particular firm may have more weight with an employer. Either because they do business similar to you, or has prestige in the market, or because you like the company.
I will be the first to admit that these studies show race is a factor, I am questioning the degree and the reasons why.
Unfortunately, as expensive as the hiring process is, it is not possible to get to know each candidate, particularly their appearance and verbal skills. Perhaps if a question as asked and recorded verbally as a part of the application, diction could be taken into consideration.
Basically put, government has never succeeded in being a catalyst for societal change. Society is still to evolve to the point where everyone is truly equal, and legislation isn't going to change that. It's not right, but it's reality.