Getting your MRSMBA Degree?

Some confusing data out of Vanderbilt University suggests that women from elite ("snooty") universities work less than women from non-elite ("regular") universities. What's the deal? Do these women, possibly more likely to have been born into privilege, decide to continue to live in luxury off their parents' or spouses' money? Effectively earning their 21st century MRS degree? Or are they making work work for them, by choosing positions that allow them flexible hours and a more leisurely lifestyle because they'd rather spend more time travelling the world or taking care of their kids? Or are they getting pushed out of their jobs by latent sexism, and get too frustrated to press through? Choosing instead to focus on other pursuits? And what's the difference between the women from the elites who decide to work full-time vs those who do not (aside from kids)? Or is this research full of bull (and admittedly, I have not read the entire paper so it very well might be - or it might be the most insightful and well-researched paper in years. I have no idea!)

Ideas?

[via Neatorama]