<p>Notice the problems with Chicago’s count. Someone like Koopmans who left Chicago 20 years before the prize was counted. Ditto for Debreu. Arrow spent even less time at Chicago but I think he got an honorary degree. Caltech doesn’t count people like Einstein who spent several years at Caltech before going to Princeton, while Chicago counts Bethe who spent only a year or two there. Is there a right or wrong answer? No. But it makes counting anything but alums inconsistent. By that criterion Chicago has something like 30 and Harvard under 50 I believe.</p>