The actions of lenders are directly attributable to the policies of the Fed: when credit is cheap, why not loan money more recklessly to individuals who normally would not qualify? Even with higher default rates, lenders could make huge profits simply through volume. Subprime lending is a symptom of the housing bubble, not the cause of it.

          Fed credit also distorts mortgage lending through Fannie Mae and Freddie Mac, two government schemes created by Congress supposedly to help poor people. Fannie and Freddie enjoy an implicit guarantee of a bailout by the federal government if their loans default, and thus are insulated from market forces. This insulation spurred investors to make funds available to Fannie and Freddie that otherwise would have been invested in other securities or more productive endeavors, thereby fueling the housing boom.

          The Federal Reserve provides the mother’s milk for the booms and busts wrongly associated with a mythical “business cycle.” Imagine a Brinks truck driving down a busy street with the doors wide open, and money flying out everywhere, and you’ll have a pretty good analogy for Fed policies over the last two decades.

          Unless and until we get the Federal Reserve out of the business of creating money at will and setting interest rates, we will remain vulnerable to market bubbles and painful corrections. If housing prices plummet and millions of Americans find themselves owing more than their homes are worth, the blame lies squarely with Alan Greenspan and Ben Bernanke.