Japan Raises Interest Rates To 31-Year High As War-Driven Energy Costs Fuel Inflation Concerns

Japan’s central bank raised interest rates to their highest level in more than three decades, tightening monetary policy as the country grapples with inflationary pressures and a weakening yen.

The Bank of Japan increased its benchmark short-term policy rate by 25 basis points to 1%, marking the first rate hike since December and bringing borrowing costs to their highest level since 1995. The decision was approved by a 7-1 vote at the conclusion of the bank’s two-day policy meeting, according to Reuters.

The move comes as governments and central banks around the world respond to inflation risks stemming from disruptions to global energy supplies following months of conflict in the Middle East. Japan is particularly vulnerable because it relies heavily on imported fuel, with much of its crude oil traditionally sourced from the region.

In announcing the decision, the Bank of Japan cited inflationary pressure from higher crude oil prices and warned that rising costs were increasingly being passed through to businesses and consumers. The central bank said it would continue monitoring prices and economic conditions as it pursues its inflation objective, according to The New York Times.

Deputy Governor Shinichi Uchida said a recent agreement between the United States and Iran to reopen the Strait of Hormuz had reduced some of the immediate risks facing the Japanese economy. However, he noted that uncertainty remained over the speed of supply-chain normalization and the broader impact of the conflict on global markets.

The rate increase aligns Japan with other major central banks that have recently tightened policy in response to inflation concerns. Last week, the European Central Bank raised its key interest rates by 25 basis points, citing inflationary pressures generated by the Middle East conflict and higher energy prices.

Japan’s decision also reflects lessons learned during the inflation surge that followed Russia’s invasion of Ukraine in 2022. Economists told The New York Times that policymakers have moved more quickly this time as evidence of rising prices has already begun to emerge in economic data.

The latest increase continues a significant shift in Japanese monetary policy. For decades, the Bank of Japan maintained ultra-low and even negative interest rates in an effort to stimulate growth and combat deflation. Since early 2024, however, the central bank has gradually moved away from those policies as inflation accelerated due to supply-chain disruptions and geopolitical shocks, according to The Guardian.

The decision also comes amid political debate over Japan’s economic direction. Prime Minister Sanae Takaichi has advocated policies that favor a weaker yen and lower borrowing costs, arguing they support exports and economic growth. Higher interest rates can complicate government spending plans by increasing borrowing costs.

At the same time, the yen has weakened sharply against the U.S. dollar in recent months, falling beyond 160 yen per dollar at one stage. The depreciation has raised the cost of imported goods, including fuel and food, adding to inflation pressures across the economy. Japan’s Finance Ministry has spent billions of dollars intervening in currency markets in an effort to support the yen, though economists have argued that higher domestic interest rates are likely to have a greater impact on exchange-rate stability.