Bank of Japan Deputy Governor Hiroshi Nakaso speaks during an interview with Reuters at the BOJ headquarters in Tokyo April 9, 2015. REUTERS/Yuya Shino

Bank of Japan Deputy Governor Hiroshi Nakaso speaks during an interview with Reuters at the BOJ headquarters in Tokyo April 9, 2015. REUTERS/Yuya Shino

Bank of Japan Deputy Governor Hiroshi Nakaso speaks during an interview with Reuters at the BOJ headquarters in Tokyo April 9, 2015. REUTERS/Yuya Shino

June 9, 2016 12:16 PM (UTC+8)