In the graveyard of economic ideology, dead ideas still stalk the land.

The recent financial crisis laid bare many of the assumptions behind market liberalism--the theory that market-based solutions are always best, regardless of the problem. For decades, their advocates dominated mainstream economics, and their influence created a system where an unthinking faith in markets led many to view speculative investments as fundamentally safe. The crisis seemed to have killed off these ideas, but they still live on in the minds of many--members of the public, commentators,...