“We economists have a reputation for being dry and boring. That’s why Ben Stein’s scene in Ferris Bueller’s Day Off works so well — and why this guy is such a novelty. Given our dismal reputation, I am happy to report that some economists’ recent defenses of the efficient-markets hypothesis are laugh-out-loud funny. Outside Cirque du Soleil, you will not see such contortions as when these economists try to defend their theory from either refutation or triviality.” (11/19/09)