New census data indicates that, on average, white men with a four year degree earned, on average, more than any other catagory. Women generally earned less than men, but white women earned less than black and asian women (and slightly more than hispanic women). No one is sure why this is the case.
What’s odd is that that last night I was having a conversation with my wife which has some relevance on this. While one anecdote is hardly the basis for public policy, I’d be interested in knowing whether any of the xtant research has explored this issue . . .