Ultimately, when the decision is made to remove policy accommodation further, prudent risk management may prescribe that it be accomplished with greater swiftness than is modern central bank custom. The Federal Reserve acted preemptively in providing monetary stimulus, especially in early 2008 when the economy appeared on an uneven, uncertain trajectory. If the economy were to turn up smartly and durably, policy might need to be unwound with the resolve equal to that in the accommodation phase. That is, the speed and force of the action ahead may bear some corresponding symmetry to the path that preceded it. Of course, if the economy remains mired in weak economic conditions, and inflation and inflation expectation measures are firmly anchored, then policy could remain highly accommodative.
"Whatever it takes" is said by some to be the maxim that marked the battle of the last year. But, it cannot be an asymmetric mantra, trotted out only during times of deep economic and financial distress, and discarded when the cycle turns. If "whatever it takes" was appropriate to arrest the panic, the refrain might turn out to be equally necessary at a stage during the recovery to ensure the Fed's institutional credibility. The asymmetric application of policy ultimately could cause the innovative policy approaches introduced in the past couple of years to lose their standing as valuable additions in the arsenal of central bankers.