Professor Posin is to be congratulated on his recent article in this Review, "The Coase Theorem: If Pigs Could Fly," for creating a precise example that purports to disprove the Coase Theorem. Legal scholarship should strive more towards verifiable or falsifiable statements about the law. Of...

Despite the theoretical importance of the Coase Theorem, scholars have given surprisingly little attention to verifying its predictions empirically. Supporters often accept the theorem as dogma, while armchair critics assail its assumptions. In an exciting series of recent articles, however,...