My own experience does not bear this out. My daughter goes to an elementary school that is 85% black. Most of the children come from two-parent, middle class families; they are highly motivated to learn and obviously come from very stable, close-knit families. 95% of the black children at my daughter's school have "black" names.
When my daughter was in second grade, I had to research the name of every kid in my daughter's class (for fun/games) and although there was one black "kelley," every other black kid had a name whose provenance was either Swahili or Arabic/Muslim.
So, I don't know about the research quoted above, especially if its wonted aim was to prove that employers are not racist. If there are employers who are not racist, I have yet to meet them
Joanna