Remarks by Governor Ben S. Bernanke
Before the National Economists Club, Washington, D.C.
November 21, 2002
Because central banks conventionally conduct monetary policy by manipulating the short-term nominal interest rate, some observers have concluded that when that key rate stands at or near zero, the central bank has “run out of ammunition”–that is, it no longer has the power to expand aggregate demand and hence economic activity. It is true that once the policy rate has been driven down to zero, a central bank can no longer use its traditional means of stimulating aggregate demand and thus will be operating in less familiar territory. The central bank’s inability to use its traditional methods may complicate the policymaking process and introduce uncertainty in the size and timing of the economy’s response to policy actions. Hence I agree that the situation is one to be avoided if possible.