1. Siberian barter markets in everything if only they had stabilized nominal gdp. It might mean less sex.
4. Noah Smith responds on empiricism and humility. Many good points, though I think who is “ideological” is not as simple as this seems to indicate. Even if no one person acts or feels like an ideologue, a system that is not asking all the right questions is in fact highly ideological. When was the last time there was a significant study of child satisfaction with school vouchers? How much attention is given to the economics of animal welfare? And so on.