Let me comment on the one that proposes to increase the level of inflation under the target to ease the zerolower-bound problem, i.e. the constraint on monetary policy arising from the fact that nominal interest rates are around zero.
For instance, it has been argued that the inflation target for advanced economies could be increased from the 2 percent figure used by many of them to 4 percent. 13 According to this line of reasoning, a higher inflation target would raise the long run level of nominal interest rates, allowing larger decreases in rates before the zero bound becomes binding.