Contributor(s): Raj Patel | "Nowadays people know the price of everything and the value of nothing." Credit has crunched, debt has turned toxic, the gears of the world economy have ground to a halt. It's now clear that the market doesn't only get it wrong about sub-prime mortgages; it gets it wrong about everything. We need to ask again one of the most fundamental questions a society ever addresses: why do things cost what they do?