TOKYO, April 7 (Reuters) - The Bank of Japan (BOJ) should be cautious about changing its unconventional monetary policy for now, given financial market uncertainty due to problems in Western banks, former top financial diplomat Takehiko Nakao told Reuters in an interview.
Nakao made the comments amid speculation the BOJ may abandon its yield curve control policy when new Governor Kazuo Ueda takes over incumbent Haruhiko Kuroda, whose term ends on April 8.
U.S. bank failures and the buyout of Credit Suisse by UBS last month have driven financial market risk aversion.
Nakao said the BOJ must carefully monitor market developments, for now, although credit anxiety was unlikely to morph into anything like the 2008/09 global financial crisis.
"Yet, the BOJ cannot continue unconventional monetary policy, including ETF and REIT purchases and YCC, indefinitely.