The key to this commitment is that the Bank promises to continue  3  with monetary easing based on observed CPI inflation rather than the outlook for CPI inflation. The Bank aims to strengthen the formation of inflation expectations with this extremely strong commitment.
In addition, through this commitment, it is implementing the idea of a "makeup strategy," in which monetary easing is conducted so that the inflation rate stays above the target for a sustained period of time to compensate for the observed inflation rate that continued to fall below the target.