BoJ Governor Ueda has stated often that he will maintain the Bank’s ultra-loose policy until stronger wage growth keeps inflation sustainably around the 2% target.

Source: https://www.marketpulse.com/forex/japanese-yen-flirts-with-145-core-cpi-ticks-upwards/kfisher

SINGAPORE/LONDON (Reuters) - The dollar slipped on Thursday after a raft of data showed the U.S. economy is losing momentum, while the yen rebounded as traders continued to bet the Bank of Japan will shift away from ultra-loose monetary policy.

Source: https://biztoc.com/x/4c2c4b565d8057d1?ref=ff

The Governor repeated that monetary policy needed to remain ultra-loose in order to achieve sustainable inflation at the 2% target.

Source: https://www.marketpulse.com/news-events/central-banks/usd-jpy-dips-lower-after-boj-core-cpi-rises/kfisher

The Japanese yen has paid the price for the BoJ’s insistence on maintaining an ultra-loose policy and has had only one winning week against the dollar since July.

Source: https://www.marketpulse.com/newsfeed/usd-jpy-rebounds-us-gdp-tokyo-core-cpi-next/kfisher

The reason for Japan's ultra-loose policy was over a decade of anemic growth and unstable inflation during the 2010s which forced monetary officials to step in and support financial conditions which struggled in that period.

Source: https://seekingalpha.com/article/4614748-fljp-boj-delaying-tightening-as-long-as-possible?source=feed_all_articles

There has been feverish speculation that the Bank of Japan will exit its ultra-loose policy, but the BoJ will want to see stronger growth before making any dramatic shifts, which could include lifting rates into positive territory.

Source: https://www.marketpulse.com/fundamental/japanese-yen-keeps-on-rolling/kfisher