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 markets always know best, regardless of the problem. For decades, its advocates had dominated economics, helping to create an unthinking faith in markets, in which speculative investments were seen as fundamentally safe. The crisis seemed to kill off such ideas, but they still live on in the minds of many - members of th