This is an interesting exposition and defense of Posner's "legal pragmatism", which is
(1)modeled after Schumpeter's democratic theory, and
(2)is taken to be closer to what he calls 'everyday pragmatism' than 'philosophical pragmatism'
Posner attacks two schools of democratic theory - deliberative democracy and social choice theory - and numerous branches of legal theory, most notably legal formalism. I won't try to recreate the argument, and will instead quickly note (for my benefit, to be honest) five sticking points that either left me confused or in disagreement with Posner.
1)his treatment of deliberative democracy (DD) is insufficient in at least two ways. First, he only attacks a particular type of DD, ignoring the very important branch that is associated with people like Dryzek and I.M. Young. This book came out in 2003, but it reads like it really came out a few years earlier. Second, his strategy of arguing that the DD proponents are inconsistent in terms of their practical loyalties fails. The strategy has several steps. First, he argues that DD either entirely or largely (it's not clear which) comprise what he calls "concept 1" democratic thought. This type of thought is idealistic, sees politics as a transformative process, and aims at achieving some sort of greater good. It is contrasted with his Schumpeterian "concept 2" vision, which is largely but not entirely faithful to Schumpeter's thought. The second step is to say concept 1 proponents end up either being inconsistent or being committed to positions that they would want to avoid. The problem is that whether he intends it to be the case or not, the people he describe in his second step could plausibly be type 1 without being proponents of DD. Actually, it's hard to see why adherence to type 1 would necessarily imply a pro-DD position. Plus, as I mentioned, there are multiple branches of DD, and it's not clear that being pro-DD entails being type 1
2)he repeatedly says that pragmatism is not utilitarianism, but I wasn't clear on why. Two of the reasons he gives amount to: (a)pragmatism is fine with truncating the search for "good outcomes" - it's fine with applying rules of thumb, etc., (b)pragmatism is sensitive to things such as the moral indignation of people, and is committed to taking such things into account when weighing the desirability of a possible solution. My reaction was that I just didn't understand why this doesn't just amount to a sophisticated version of rule utilitarianism. At least some rule utilitarians are fine with using rules of thumb, etc., because doing so is judged to be conducive to promoting utility. If Posner's pragmatism is okay with using rules of thumb, on what other grounds does it do so? It really just seems to amount to utility. What's more, utilitarians would also take into account things such as moral indignation when determining the desirability of a position. I guess that some would not - these rule utilitarians might be committed to living by a complete set of rules that would best promote utility, and this set might reject taking into account certain sensibilities. Yet I think other rule utilitarians would be fine with taking the world as it is and applying their utilitarian analysis piecemeal. These utilitarians would likely be the ones to take gut-level "yay" or "ugh!" reactions into account
3)his pragmatism seems to lead to some odd conclusions. For instance, he things that neo-Nazis in the US should have reasonably extensive freedom of speech rights in part because the likelihood of causing harm is quite low. Those advocating political assassination or jihad against the US may, for corresponding reasons, have fewer freedom of speech rights. The basic idea is sensible: yelling "fire" in a crowded theater is very likely to bring about harm, so it's not allowed, etc. But it still seems really weird to imply that the rights a group has is a function of how zany it is. To the extent that I am saying something incredibly zany - and thus unlikely to be taken seriously - I am afforded latitude? This intuitively seems like an irrelevant criterion. To push this further: let's say that I am saying offensive but zany things for years, and I eventually become more popular. Does this mean that I now have less of a right to say these zany things? There is nothing inconsistent with answering this with a "yes", but, again, it seems odd. Even weirder: assuming that all this comes to pass, but the group becomes even more popular, it would hit a threshold whereby Posner's pragmatism would warrant giving my zany group more freedom of speech, since a refusal to do so would be problematic on pragmatic grounds. Again, there is nothing inconsistent with any of this, but it seems odd
4)Despite Posner's argument that Americans understand that the judiciary is at heart pragmatist in orientation, Posner's defense of rhetoric seems parasitic on a widespread belief that judges are formalist. Judges use high-minded rhetoric - which is substantively empty - because it works, and they should be applauded for doing so. But if we were certain that judges were pragmatists, it's not clear why we wouldn't just discount all "concept 1" rhetoric as cheap talk. Posner points at a couple of reasons why rhetoric may persist despite this objection, but he's really unconvincing here
5)Posner asserts that J.S. Mill's On Liberty is a pragmatic, or at least proto-pragmatic, text that is totally disconnected from his views in Utilitarianism. I disagree with the latter part of this assertion, and was disappointed to see that Posner offers no evidence whatsoever for this surprising contention. So far as I can tell, he does not even include a footnote.
It's likely that at least one of these "problems" is really just due to my misreading or misunderstanding him, but for better or for worse, they are issues that came up in my reading. There were others, but this review is already too long, so I'll end here.