BOJ Governor Ueda Highlights Uncertainty Over Future Interest Rate Hikes

Bank of Japan (BOJ) Governor Kazuo Ueda said on Thursday that the central bank faces significant uncertainty over how far it can raise interest rates, largely due to challenges in accurately estimating Japan’s neutral interest rate. Speaking before parliament, Ueda explained that the neutral rate—often used as a benchmark for setting monetary policy—is difficult to pinpoint because it cannot be directly observed and tends to shift over time as key economic factors such as productivity evolve.

Ueda noted that the BOJ has been working to refine its estimates but admitted that the current projected range for Japan’s nominal neutral rate remains wide, falling between 1% and 2.5%. He added that the central bank intends to release more detailed findings once it has successfully narrowed down that range. Until then, policymakers must make crucial monetary decisions without a precise understanding of the neutral level, which complicates judgments on how aggressively to pursue interest rate increases.

This uncertainty comes at a pivotal time for Japan’s monetary policy. The BOJ’s short-term policy rate currently stands at 0.5%, still well below the estimated neutral zone. Earlier in the week, Ueda signaled that the central bank is considering the “pros and cons” of another rate hike at its upcoming policy meeting, suggesting a strong possibility of raising the rate to 0.75% later this month. Such a move would continue Japan’s shift away from its long-standing ultra-loose monetary stance as inflationary pressures and global rate trends push the BOJ toward normalization.

As markets watch closely, Ueda’s comments underscore the delicate balance the BOJ must maintain—tightening policy enough to curb inflation without slowing economic growth. The difficulty in identifying the neutral interest rate adds another layer of complexity to Japan’s monetary strategy, making future rate decisions a focal point for investors, analysts, and policymakers.