TOKYO — Japan’s central bank may be moving closer to another interest rate hike after Bank of Japan Deputy Governor Ryozo Himino warned that policymakers must act in a timely manner to prevent inflation from accelerating beyond control.
Speaking to business leaders on Thursday, Himino said delaying action against rising price pressures could ultimately force the Bank of Japan (BOJ) to impose sharper and more disruptive rate increases later. He stressed that policymakers should pay greater attention to upside risks to inflation, particularly if underlying price growth moves above the central bank’s 2% target.
The message is significant because it comes as financial markets increasingly expect the BOJ to tighten monetary policy again—and potentially sooner than previously anticipated.
Why Himino’s Warning Matters
For decades, Japan struggled with weak inflation and ultra-low interest rates. But the economic landscape has changed dramatically. The BOJ has been gradually normalising policy, raising its benchmark rate to 1% in June, its highest level in roughly three decades.
Himino’s latest comments reinforce a concern he has raised before: waiting too long could leave the central bank behind the inflation curve.
Earlier this year, he warned that underlying inflation could overshoot the BOJ’s 2% target and that a delayed response to price pressures could damage the broader economy. Rising costs, wage growth and demand-driven inflation have all complicated the central bank’s policy decisions.
The challenge for Tokyo is clear: raise rates too quickly and risk hurting economic growth; move too slowly and inflation could become harder to contain.
September Rate Hike Bets Are Growing
The timing of the BOJ’s next move is now one of the biggest questions facing Asian markets.
A Reuters poll published this week found that 57% of economists surveyed expected the BOJ to raise interest rates in September, a dramatic shift from a July survey, when only 5% expected a move during the current quarter. The poll also showed that economists have been raising their expectations for where Japanese interest rates could ultimately peak.
Reuters has also reported that persistent inflation pressures are fueling expectations for faster and more frequent rate hikes, with some investors now pricing in a policy rate that could eventually reach 1.75% or even 2%.
That does not mean a September hike is guaranteed. The BOJ will still assess incoming inflation, growth, wages and financial market data before making a decision. But Himino’s emphasis on acting “timely” will likely intensify speculation that policymakers are preparing markets for another move.
Inflation, the Weak Yen and Global Pressures
Japan’s rate outlook is also being shaped by forces beyond its borders.
A weak yen can increase the cost of imported energy and raw materials, adding pressure to household budgets and businesses. At the same time, global geopolitical tensions and higher commodity costs have complicated the BOJ’s efforts to determine whether inflation is temporary or becoming more deeply embedded in the economy.
Japan’s currency has also become a major factor in the policy debate. Reuters reported that persistent selling pressure on the yen, alongside inflation concerns, has strengthened expectations that the central bank could move more aggressively than it has in the past.
What Happens Next?
The BOJ now faces a delicate balancing act. A carefully timed rate hike could help contain inflation expectations and demonstrate that policymakers remain committed to their 2% target. But an overly aggressive tightening cycle could increase borrowing costs and put pressure on a still-fragile economy.
For investors, businesses and consumers, the stakes are growing.
Himino’s warning suggests the debate inside Japan’s central bank is no longer simply about whether rates should eventually rise—but increasingly about how quickly policymakers need to act before inflation forces their hand.
With expectations building ahead of the BOJ’s upcoming policy decisions, Japan’s next move could send ripples through the yen, bond markets and economies across Asia.
The big question now: Will the Bank of Japan act early to stay ahead of inflation—or wait until the pressure becomes impossible to ignore?
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