Kocherlakota

Kocherlakota 

Why do I see symmetry as important? Without symmetry, inflation might spend considerably more time below 2 percent than above 2 percent. Inflation persistently below the 2 percent target could create doubts in households and businesses about whether the FOMC is truly aiming for 2 percent inflation, or some lower number. This kind of unmooring of inflation expectations would reduce the effectiveness of monetary policy as a mitigant against adverse macroeconomic shocks. 

Second, I believe that the FOMC should consider articulating a benchmark two-year time horizon for returning inflation to the 2 percent goal. (Two years is a good choice for a benchmark because monetary policy is generally thought to affect inflation with about a two-year lag.) Right now, although the FOMC has a 2 percent inflation objective over the long run, it has not specified any time frame for achieving that objective. This lack of specificity suggests that appropriate monetary policy might engender inflation that is far from the 2 percent target for years at a time and thereby creates undue inflation (and related employment) uncertainty."

(via Thoma)