From the article:
Yale is an interesting case study. The school currently gives the children of alumni an admissions bump, but from 1980 to 2010, the proportion of students in its freshman class with a parent who also attended dropped from 24 percent to 13 percent.
1) Just because Yale tells a gullible Atlantic reporter something — like that it does not discriminate against Asian-Americans — does not make that something true. Yale has many reasons, mostly related to fund-raising, to claim that it gives legacies a “bump,” even if — especially if! — the bump is so small as to be invisible.
2) I don’t think the drop at Williams has been so dramatic, but there has been a drop. I think a recent class was only 10% legacy, whereas the usual number was closer to 15%. I don’t know what it was in the 80’s, although that information is available in the library in the annual letters that the Admissions Office used to produce for the trustees. On my list of projects for reunion week-end!
3) The numbers for Yale help to explain the dramatic increase in legacy quality at Yale. (We don’t have Yale data but there is no reason why the trends would not be the same there as at Harvard/Williams.) First, if you only take half as many legacies, you can reject the really stupid ones. Second, the doubling of the Yale undergraduate class size from the 60s to the 80s means that there are, more or less, twice as many legacies to choose from. Third, Yale students in the 80s are much smarter than those from the 50s, so their children will form a much more academically accomplished pool to choose from.