No consensus yet in BoJ's board on how frequently and by how much it could raise its yield targets if it were to do so in future

Shouldn't rule out possibility of raising BoJ's yield targets before 2 pct inflation target is achieved

BoJ may struggle to keep 10-yr JGB yield target around zero if consumer inflation accelerates around 1 pct later this year

BoJ should not raise yield targets just because long-term rates are rising in tandem with U.S. yields

Hard to set explicit interest rate levels in guiding yield curve to appropriate shape