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Bank of Japan (BOJ) governor Haruhiko Kuroda gestures as he listens to questions during a press conference at the BOJ headquarters in Tokyo on July 29, 2016. The Bank of Japan surprised markets on July 29 with only minor tweaks to its giant stimulus plan that reignited concerns its monetary policy arsenal is almost empty. / AFP / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)

Bank of Japan (BOJ) governor Haruhiko Kuroda gestures as he listens to questions during a press conference at the BOJ headquarters in Tokyo on July 29, 2016.
The Bank of Japan surprised markets on July 29 with only minor tweaks to its giant stimulus plan that reignited concerns its monetary policy arsenal is almost empty. / AFP / KAZUHIRO NOGI        (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images)