Bank of Japan Policy Board Member Kazuyuki Masu argued on Thursday that further monetary normalization is needed precisely to reduce the risk that the BoJ is forced into much faster tightening later. Speaking to local leaders in Fukui, Masu said financial conditions remain accommodative and warned that if inflation accelerates, the Bank could “inevitably need to implement a rapid policy interest rate hike.” He said the current 1.0% policy rate remains below the BoJ’s estimated 1.1–2.5% neutral-rate range and that rates should be raised further into that range, giving policymakers greater flexibility to adjust in either direction as conditions change.
The urgency comes from an inflation backdrop Masu believes is already close to the BoJ’s objective before the latest external pressures fully feed through. He said underlying inflation remains below 2% but is “very close to the 2 percent target,” while firms are increasingly passing higher costs into selling prices. The Iran conflict is adding pressure through fuel, chemicals, shipping and distribution costs, while Yen depreciation is having a more pronounced effect on prices than in the past. Masu also warned that AI-related global demand is pushing up prices for semiconductors, copper and power-generation equipment, adding another demand-side source of inflation.
Domestic conditions give Masu additional reason to keep tightening. Scheduled earnings are rising around 3% and real wages have finally turned positive, while previous rate hikes have not visibly curtailed companies’ appetite for financing. Masu also argued that short-term real interest rates remain negative even though Japan has exited deflation, saying the “negative real interest rate situation should be addressed as soon as possible.” His concern is that leaving policy too accommodative could encourage excessive investment and asset-price gains while making it harder to contain inflation later.
Masu’s message is therefore hawkish on direction but conditional on pace. He is not calling for rapid hikes now; rather, he wants normalization to proceed while the BoJ still has room to move gradually. The risk scenario is that persistent energy, food, wage and currency pressures push underlying inflation materially above 2% before policy reaches a more neutral setting, forcing the Bank to catch up more aggressively. That makes further hikes the baseline direction in Masu’s framework, while rapid tightening is the outcome he is effectively arguing the BoJ should try to avoid.
Key Takeaways
- Bank of Japan Policy Board Member Kazuyuki Masu said further rate hikes are necessary because financial conditions remain accommodative and underlying inflation is already “very close to the 2 percent target.”
- Masu warned that if inflation accelerates before normalization progresses far enough, the BoJ could “inevitably need to implement a rapid policy interest rate hike.” His argument is for steady tightening now to preserve flexibility later.
- The BoJ’s current 1.0% policy rate remains below its estimated 1.1–2.5% neutral-rate range, while short-term real interest rates are still negative. Masu said that negative real-rate situation should be addressed “as soon as possible.”
- Inflation risks are broadening beyond oil. Masu highlighted fuel and chemical costs from the Iran conflict, higher distribution and food costs, greater pass-through from Yen depreciation, and AI-related demand as potential sources of persistent price pressure.
- Domestic conditions remain compatible with further normalization: scheduled earnings are rising around 3%, real wages have turned positive, and previous rate hikes have not visibly weakened corporate demand for financing.
- Masu’s stance is therefore hawkish on direction but conditional on pace: further hikes are the preferred path, while rapid tightening is the risk scenario he wants to avoid.
