But, I would try something else after all these sell offs. What about not waiting to intervene after price has come all the way back to the initial action point ? Why not a burst of interventions ? Not saying that that's the 'wonder' recipe, but it sure would make investors clear that the BOJ is serious about their attempts.
I dont believe or have faith in trying things over and over again when they have clearly proven to be NON-effective. Just my 2 cents !