In other words, the current policy guideline allows a range of “about six to eight years” for the average remaining maturity of the Bank’s JGB purchases. By utilizing this guideline, it would be possible to stabilize the entire yield curve by purchasing JGBs with a maturity of one to five years more intensively.
As the policy guideline allows a range of “about six to eight years,” I see no need for concern even if the actual remaining maturity of JGB purchases temporarily falls short of six years.