That’s an excellent point, @GMTplus7 . I don’t think I have ever seen that breakdown made public, but one might (and I emphasize might) suspect that is one reason Tulane has embraced involvement with Posse so enthusiastically. The fact that Tulane has auto-admit for Louisiana students that meet very reasonable criteria (at least for a school the caliber of Tulane) and yet still doesn’t have more minorities does emphasize @lz57c4 's point regarding cost that is probably a significant factor, but also the traditionally poor public schools in Louisiana no doubt contributes even more. I meant to point out earlier that Tulane has a no-loans policy for families with income of <$75,000. Again, not as generous as the schools with huge endowments but pretty competitive. I am sure one issue is that even in Louisiana this is not as widely known as it should be.
Just to be fair, I think I said that from the start. I should also have pointed out that Tulane has made strong strides in 10 years on this issue. Which just shows how unfortunately behind it was, no denying that. But starting then the students got involved with the region in a big way, 5-6 years ago they started in with Posse, and 2 years ago they started recruiting more international students. So I think it is fair to say that the goals are in line, and recently amped up by Fitts as I mentioned.
Finally:
When you add in that students routinely jump into this diversity, often in a major way, it reinforces what I have been pointing out regarding different ways to address understanding others.