The summary of the Bank of Japan’s December policy meeting, released on Monday, reveals an ongoing debate among policymakers about the need to continue raising interest rates. Some committee members have called for "timely" action to curb future inflationary pressures.
This is more than just talk—one unnamed policy board member explicitly suggested that the Bank of Japan "should hike rates every few months."
01 Policy Shift
At its meeting on December 18–19, the Bank of Japan raised its policy rate from 0.5% to 0.75%. This marks a pivotal step in ending decades of ultra-loose monetary policy.
With this hike, rates have reached their highest level since 1995. Nevertheless, many committee members indicated in the summary that further rate increases may still be necessary.
Japan’s real policy rate, adjusted for inflation, remains negative. One member bluntly noted that Japan’s real policy rate "is currently the lowest in the world."
02 Hawkish Voices
The meeting summary contained clear hawkish signals. One viewpoint stated, "There is still a considerable gap before reaching a neutral interest rate level."
As a result, the Bank of Japan "should currently raise rates every few months."
Another perspective directly linked the yen’s weakness and rising long-term rates partly to the central bank’s policy rate being "too low relative to inflation." It argued that "raising the policy rate in a timely manner can help curb future inflationary pressures and contribute to lowering long-term rates."
03 Market Reaction
These policy signals have already triggered volatility in the forex market. On Monday, the US dollar slipped slightly against the yen, trading near 156.20.
This represents a modest rebound for the yen after a period of weakness, though the recovery remains fragile.
Market analysts point out that the yen’s appeal as a traditional safe-haven asset is shifting. The Bank of Japan’s gradual exit from negative rates, combined with Japan’s macroeconomic headwinds, has diminished the currency’s safe-haven status.
04 Impact on the Cryptocurrency Market
Monetary policy decisions by major central banks have always been a key factor influencing the cryptocurrency market. As the world’s third-largest economy, Japan’s policy shift could affect crypto assets in several ways.
As Japanese interest rates rise, traditional financial markets may attract some capital seeking stable returns. If the yen continues to strengthen, speculative funds could move out of high-risk assets—including cryptocurrencies.
However, some argue that in an environment of global economic uncertainty, the role of cryptocurrencies as alternative assets may be reassessed. The Bank of Japan’s actions are part of a broader shift in global liquidity conditions.
05 Global Policy Context
The Bank of Japan’s move comes amid a wave of global monetary policy adjustments. The Federal Reserve has begun cutting rates from a two-decade high, although Chair Jerome Powell remains cautious.
Unlike the US, Japan is gradually exiting a long period of ultra-loose policy. This divergence could influence global capital flows and risk asset pricing in the months ahead.
Normalizing policy remains a challenge for the Bank of Japan. Although nominal rates have risen, the real rate—adjusted for inflation—remains negative, suggesting a long road ahead for tightening.
Notably, there are differing views within the Bank of Japan about what constitutes a neutral rate. One policy board member stated, "Given the difficulty in determining the neutral rate, the Bank of Japan should not target a specific neutral rate level but should implement monetary policy flexibly."
07 Outlook and Prospects
Markets are closely watching the Bank of Japan’s next move. The summary shows that some policymakers want to accelerate the normalization of monetary policy, especially given the persistent weakness of the yen and ongoing inflationary pressures.
One viewpoint even warned, "If the current financial environment is maintained, inflationary pressures may persist. Therefore, waiting until the next policy meeting to make a decision would entail considerable risk."
Meanwhile, global investors are assessing the long-term impact of this policy shift on various asset classes. Traditionally, Japan has been a major source of global liquidity, so tighter monetary policy could reshape the global liquidity landscape.
Forward Outlook
Recent comments from Finance Minister Katsuki Katayama have granted Tokyo "discretion" in responding to yen volatility, subtly reinforcing the threat of direct market intervention.
Forex traders remain cautious, and long yen positions are still "painful." While the Bank of Japan has signaled further rate hikes, markets appear to be waiting for more decisive action.
With limited economic data releases in the final week of 2025, market attention is also shifting toward policy moves from other major central banks.
