Could you please list some examples? Aside from Austrians and a few other fringe contrarians, I almost always see economists talking about the "real" figures derived using various price indexes as if they were physicists talking about some objectively measurable property of the universe that has an existence independent of them and their theories.

I meant personally - I did my undergrad in economics. I'm extremely skeptical of macroeconomics and currently throw in with the complex adaptive system dynamicists and the behavioral economists (and Hansonian cynicism; that's just me). But, to give an example, Krugman has done quite a bit of work in the complexity arena.

I just skimmed a few pages, and the book definitely looks promising. Thanks again for the recommendation!

Yeah, you're welcome! The first I heard of that book was someone using the example of calculating in-flows and out-flows of gold. Each country's estimates differed by orders of magnitude or something like that, and even signs.