Let me start with the role of government, since it affects investment decisions in many ways and because it is an important topic for economic policymakers - they can make many mistakes but also quite a few positive contributions in this regard. Government regulations can have a variety of effects on investment behaviour.
In light of my proposal, how such a reduction, if actually implemented, will affect financial markets in particular has been drawing wide interest. My understanding is that the additional effects of the Bank's JGB purchases have already been diminishing, and that there is a limit to such purchases.