I remain unpersuaded that explicit numerical inflation targets are a key characteristic that distinguishes behavior among the world's central banks. Despite the various public characterizations of the form of monetary policy regime, the Federal Reserve and most other central banks generally pursue price stability and, consistent with that goal, ease when economic conditions soften and tighten when they firm.
That said, I am certain this will remain a topic of lively discussion here and at other monetary forums in years to come. Participants on all sides of that debate will be well served by keeping open minds and remaining attentive to the evidence as events unfold and practices evolve.