The title of this post is the title of a newish paper by Marion Fourcade (Berkeley), Etienne Ollion (Strasbourg), and Yann Algan (Sciences Po, Paris) (FOA).
Yes, I know FOA is already published, even insightfully blogged by Krugman. (Blogged on? Blogged upon? Or maybe give up and just say "reviewed"?) But I'm often slow to notice things; maybe you are too. So if you haven't read it yet, take a look. Regardless of your reaction, it's undeniably fascinating reading.
FOA popped back into my head because I recently received an email announcing its September 2015 presentation at the 20th Anniversary Conference of the Foundation Banque de France, with discussion by Ramon Marimon (EUI) and Lucrezia Reichlin (LBS).
It's interesting that FOA is still being presented after publication, which is highly unusual in economics. But it makes sense: it's a unique paper, and there's still a lot to discuss.