The Bank of Japan may need to raise interest rates rapidly if inflation accelerates, board member Kazuyuki Masu said Thursday, pointing to the country's accommodative financial conditions. Masu warned of price risks that reinforce the likelihood of a September rate hike. The yen rose against the U.S. dollar following his remarks.
Masu stressed the necessity for the BOJ to move real interest rates out of negative territory promptly, signaling concern over the disadvantages of excessively low borrowing costs. For fixed-income investors, negative real rates erode bond purchasing power and extend duration risk within Japanese government bond portfolios.
He gave no specific indications regarding the speed or timing of future rate increases but emphasized broadening price pressures that have pushed underlying inflation close to the BOJ's 2 percent target.
A recent increase in producer prices warrants close attention, Masu said, noting this rise could elevate consumer inflation more significantly than in the past. Companies are actively passing on increased costs stemming from the ongoing Middle East conflict and the weak yen.
Rising fuel and chemical prices from geopolitical tensions could increase transportation costs across the economy. Coupled with rising food prices, these factors could exert a lasting effect on overall prices, according to Masu's assessment.
"Financial conditions in Japan remain accommodative," Masu said. "If inflation accelerates here, there is a risk we might inevitably need to rapidly raise interest rates." He added that ensuring underlying inflation does not substantially exceed 2 percent was most vital for continuing the rate-hike path.
Masu asserted the BOJ needs to raise its policy rate further, noting the rate falls solidly within the estimated range of the neutral interest rate. This approach would provide flexibility to adjust policy swiftly in either direction based on economic conditions—critical for managing the yield curve's future trajectory.
Masu, viewed by markets as holding a neutral to somewhat hawkish stance on monetary policy, is the latest BOJ official to signal tighter policy. Analysts surveyed by Reuters anticipate the BOJ will increase rates to 1.25 percent next week, with a further hike to 1.75 percent expected in the second quarter of 2027—earlier than previous projections. These expectations directly impact forward rate pricing and the shape of the Japanese yield curve.
With a rate hike next week largely priced into markets, participants are now focusing on signals regarding a potential acceleration of future rate increases. The BOJ has historically raised rates at a pace of approximately twice a year. Any deviation would signal a significant shift in monetary policy normalization.
Masu indicated that the timing and pace of future hikes would depend on the economy's likelihood of achieving the BOJ's baseline scenario, along with risks such as price pressures from rising oil costs, solid demand related to artificial intelligence, and yen currency movements.
Despite recent rate adjustments, Masu reported no indication that firms' appetite for funding has diminished. Instead, he warned of concerns about potential overheating in corporate investment, suggesting a resilient domestic economy that could sustain inflationary pressures. The BOJ previously raised interest rates to 1 percent in June, marking a 31-year high for the policy rate.
