Our fourth and final anatomist, J. Bradford DeLong, notes that “in the past two years the wealth that is the global capital stock has fallen in value from $80 trillion to $60 trillion,” and lays out five reasons why this value might fluctuate. “Savings has not fallen through the floor. We have had no little or no bad news about resource constraints, technological opportunities, or political arrangements.” Therefore, DeLong says, we’re left with changes in the discounts for liquidity, default, and risk. The housing crash has increased default risk significantly, but central banks have actually pumped up liquidity. Almost the entire drop of the value of global capital, DeLong argues, comes from an “increase in the perceived riskiness … of income from capital.” The problem, DeLong says, is that “our models for why the risk discount has taken such a huge upward leap in the past year and a half are little better than simple handwaving and just-so stories. Our current financial crisis remains largely a mystery: a $2 trillion impulse in lost value of securitized mortgages has set in motion a financial accelerator that we do not understand at any deep level that has led to ten times the total losses in financial wealth of the impulse.” However, DeLong is confident that Larry White’s story — focusing on the money supply and government policy to encourage bad home loans — cannot be the right one.