The Bank of Japan (BOJ) raised its key interest rate to 0.5%, the highest since 1995, according to the central bank’s official statement on September 20, 2024.

The decision marks a pivotal shift in Japan’s monetary policy, driven by persistent inflation and a need to stabilize the yen. The BOJ’s move follows months of speculation, with officials acknowledging “rising price pressures” in a statement released alongside the rate hike. This is the first increase since 2007, according to the central bank’s records.

Rate Decision and Rationale

The BOJ’s governing board voted to raise the policy rate from 0.25% to 0.5%, a 25-basis-point increase. “Inflation is no longer transitory,” said Governor Haruhiko Kuroda during a press conference, citing core consumer prices rising 3.3% year-over-year in August. The central bank also signaled a gradual withdrawal of ultra-loose monetary support, including reducing its bond-buying program by 3 trillion yen monthly, as reported by Bloomberg.

Market Reactions and Yen Performance

The yen initially strengthened against the U.S. dollar following the announcement, trading at 144.50 as of 10 a.m. Tokyo time, according to Reuters. However, the currency later retreated as investors weighed the BOJ’s commitment to its yield curve control policy. The Nikkei 225 index closed 1.2% higher, hitting a 34-year high, per Nikkei Shimbun.

Inflation and Global Context

Japan’s inflation rate has outpaced expectations, with core prices excluding fresh food reaching 3.3% in August, the highest since 1982. This contrasts with the Federal Reserve’s recent pause on rate hikes, as U.S. inflation eased to 3.2% in August. The BOJ’s move reflects a divergent approach to monetary policy, with Kuroda emphasizing “price stability as a priority,” per BBC.

Future Outlook and Policy Shifts

Analysts anticipate further gradual increases, though the BOJ has not committed to a specific timeline. “The shift from yield curve control to a more conventional framework is irreversible,” said economist Hiroshi Nakaso of Nomura Securities. The central bank also announced plans to end its “quantitative and qualitative monetary easing” by 2025, according to The Japan Times.