If we judge that inflationary pressures are restrained and the economy can achieve balanced growth, we can keep interest rates at very low levels.
There is no reason to think now that interest rates will be left at zero for a just a short while after quantitative easing has ended and no reason that they will be zero for a long period,
Interest rate cycles globally are gradually changing but we expect no great impact upon the global economy.
Interest rates will stay at zero for a while, then move to extremely low levels before being adjusted according to economic conditions.
Interest rates will stay at zero for some time, then stay extremely low and go through an adjustment period.