When the Fed cut its discount rate on August 17th, it admitted for the first time that the credit crunch could hurt the economy. The markets are betting it will soon cut its main federal funds rate. Economists are arguing vigorously about how much damage falling house prices and the subprime mortgage crisis will do. But there is one question that is rarely asked: even if a downturn is in the offing, should the Fed try to prevent it?
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