Bank of Japan Raises Interest Rates to 1.25 Percent to Fight Inflation

At its upcoming monetary policy meeting scheduled for the 17th to 18th of this month, the Bank of Japan is expected to raise its short-term policy interest rate by another 0.25 percentage points, from the current 1.0% to 1.25%. If officially approved, this would mark the highest level in 31 years since 1993, and the fastest adjustment since the initiation of the rate-hike cycle in March 2024. Markets generally believe that amid sustained price increases and changing external conditions, the central bank can no longer maintain its current accommodative stance and must accelerate policy tightening to curb inflation.

Japan's interest rate policy has remained in a low-interest bracket for an extended period following the burst of the economic bubble in the 1990s, with interest rates repeatedly cut to near zero or even negative levels to stimulate the economy. Beginning in 2016, the Bank of Japan implemented a negative interest rate policy, maintaining short-term interest rates around -0.1%, and progressively adjusted the yield curve control (YCC) framework starting in 2022. In March 2024, the central bank officially ended negative interest rates for the first time, raising short-term rates to 0-0.1% while lifting the upper limit on long-term rates to 0.5%, marking the official commencement of the rate-hike cycle. This impending additional hike indicates that the central bank has shifted from an accommodative path toward a more restrictive one.

Recent inflationary pressures in Japan have escalated significantly. According to data from the Statistics Bureau, the year-on-year growth rate of the Consumer Price Index (CPI) in August 2024 approached the 2% target, while core inflation continued to hover between 1.8% and 2%. Rebounding energy prices, rising import costs, and a tightening labor market have strengthened upward momentum in prices. In particular, crude oil and natural gas prices have continued to climb amid recovering global demand, directly transmitting into Japan's fuel and electricity costs and further driving up household and corporate expenditures.

The interest rate hike also generates a chain reaction on the yen's exchange rate and the capital market. The yen has depreciated continuously since 2022, breaking past the key psychological threshold of 140 yen against the US dollar, which has driven up import costs and created a vicious cycle of price transmission. Raising interest rates is expected to enhance the relative attractiveness of the yen, alleviate capital outflow pressures, and simultaneously increase corporate financing costs, posing a challenge to manufacturing and export-oriented enterprises already facing profit compression. In the stock market, investor expectations of rising interest rates have caused increased volatility in the Nikkei Index, with capital potentially shifting from high-valuation growth stocks to more defensive financial stocks.

Internationally, Japan's policy trajectory interacts with the rate-hike paces of the US Federal Reserve and the European Central Bank. The United States has continuously raised interest rates since 2022, bringing its benchmark rate close to 5%, which has caused global capital to flow toward higher-yielding US dollar assets. If Japan fails to raise its interest rates in tandem, it will face the dual risks of capital flight and excessive currency depreciation. Conversely, a moderate rate hike helps narrow the interest rate differential with major central banks, maintains financial market stability, and communicates the central bank's determination regarding inflation to the market.

However, rate hikes are not without concerns. Japan's economic growth has shown signs of fatigue, with consumer and investment demand remaining constrained by an aging population and insufficient demand. Raising interest rates too quickly could suppress corporate investment willingness and further drag down the pace of economic recovery. The Bank of Japan must weigh these factors when making its decision.