That's an interesting point, Will - and the study is also a bit older, from 2009. There is a Morgan Spurlock segment in the Freakonomics movie which we used to view in class in tandem with reading the first book. It definitely draws on this study and he illustrates different class-related names like "Ashley" and he says "Over time, high class Ashley turned into low class ... Trashly!" It's funny and entertaining though lighter weight than some of the more serious segments like the one about Sumo cheating by Alex Gibney which is amazing. All these ppl are apparently friends too.