[Eric Posner is Kirkland & Ellis Professor of Law and Aaron Director Research Scholar at the University of Chicago] I’m going to focus on a narrow issue, one that Katerina takes up in the last chapter of her impressive
book, and that is the relationship between policy diffusion (the topic of her
book) and international law (which is something of an afterthought), and specifically the debate as to why states comply with international law. I can see a few possibilities. First, there is no relationship between the argument in her...