
The Bank of Japan's "back-and-forth" moves trigger market turmoil, with future policy decisions expected to become more complex

The Bank of Japan triggered global market turmoil by raising interest rates, but later calmed investors' emotions by conveying a signal of stable rate hikes. However, this change in communication strategy may limit the central bank's determination to move away from excessive support for the economy. The central bank governor stated that if price outlooks materialize, they will raise rates again. On Monday, the yen surged, the Japanese stock market plummeted, coupled with concerns about a U.S. economic recession, sparking turmoil in global financial markets. However, the deputy governor stated that if the financial markets are unstable, policymakers will temporarily maintain loose monetary policy
According to the Zhitong Finance and Economics APP, after the unexpected rate hike by the Bank of Japan caused global market turmoil, the Bank of Japan successfully calmed investors' nerves by signaling stable rate hikes. However, this change in communication strategy may indicate the Bank of Japan's determination to gradually withdraw from decades of stimulus policies. If the Bank of Japan, scarred by past policy mistakes and reversals over the past 25 years, allows the market to dictate, the bank's ability to break free from what is considered excessive support for the Japanese economy—namely achieving monetary policy normalization—may be limited.
For months, the Bank of Japan has been hinting at further steady rate hikes. However, last week, the Bank of Japan unexpectedly raised interest rates and announced detailed plans to reduce its large-scale bond purchase program. The Bank of Japan raised the policy rate by 15 basis points to 0.15%-0.25%, contrary to market expectations of no change. The Bank of Japan also announced that it would reduce monthly bond purchases to 3 trillion yen by the first quarter of 2026, with a quarterly reduction of about 400 billion yen.
Furthermore, Bank of Japan Governor Haruhiko Kuroda once again adopted a hawkish stance at the press conference following the rate decision. Kuroda stated that if the price outlook materializes, the Bank of Japan will raise rates again. He also mentioned that 0.5% is not a specific upper limit for interest rates, stating, "There is still a lot of uncertainty about Japan's natural interest rate. What we can say is that short-term rates are still far below the level that might make people doubt whether we are close to a neutral level."
With the hawkish stance of the Bank of Japan, the yen surged and the Japanese stock market plummeted— the Nikkei 225 index recorded its largest single-day drop since 1987 on Monday. Coupled with concerns about a potential economic downturn in the United States, these factors triggered turmoil in global financial markets.
However, on Wednesday, Bank of Japan Deputy Governor Shinichi Uchida stated that policymakers would not raise the benchmark interest rate if financial markets were unstable. He noted that recent market trends were "extremely unstable," and the central bank needed to temporarily maintain loose monetary policy. He added that due to mild inflation, the Bank of Japan had the ability to wait for rate hikes.
Uchida's remarks helped stabilize market sentiment. But chaos resurfaced on Thursday as the minutes of the Bank of Japan's July meeting showed policymakers focusing on a series of rate hikes to prevent excessive inflation.
Takuya Kanda, an analyst at Gaitame.com Research Institute, stated, "The Bank of Japan raised interest rates because it doesn't like a weak yen. Now it seems to be hinting at pausing rate hikes because it doesn't like the stock market decline." "If the Bank of Japan is so market-focused in its policy-making, it may not be able to raise rates significantly."
Kazutaka Maeda, an economist at the Meiji Yasuda Research Institute, mentioned that while Uchida's remarks stabilized the market, his significant change in attitude also "ultimately amplified market volatility." He pointed out that such significant fluctuations caused by the Bank of Japan's communication were undesirable.
