[stonemetal]

some sounded black and some sounded white.

The research on what people name their children shows very little racial correlation after controlling for wealth. Though it does show high correlation with wealth and status. So showing a bias against names poor people choose regardless of race then claiming it is about blacks is poor form.

[wpietri]

If you're curious about their particular experimental design, you can read the paper here: http://www.chicagobooth.edu/pdf/bertrand.pdf