Some policymakers at the Bank of Japan are urging the bank to communicate clearly its thinking on the ultra-easy monetary policy, a summary of opinions from the policy meeting earlier in June shows. External economists also see room for the BoJ to improve.

As the central bank has upgraded the economic assessments in both April and June policy meetings, speculation is growing over the timing and method of the exit from the stimulus programme, creating a new communication challenge for the BoJ.