Mr. Barack Obama’s success in the presidential race aside, is it better to "not sound black" in your speech pattern? Interesting research done by Jeffrey Grogger at the University of Chicago finds black people who "sound black" in their speech earn 10% less than black people who do not sound black. Additionally, Grogger found that white people who "sound black" in their speech earn 6% less than their white counterparts. Hummmm....maybe all the "yo mama" accent is fine for hanging with your friends, but avoid it at work.