The Japanese yen has significantly weakened, falling beyond 163 per dollar, marking its lowest level since 1986. This depreciation is attributed to substantial interest rate differentials between Japan and other major economies, elevated oil prices, and anxieties surrounding Japan’s fiscal outlook. Despite efforts by authorities, including spending $71.9 billion (¥11.73 trillion) on foreign-exchange interventions between April 28 and May 27, these measures failed to prevent the yen from sliding to fresh 40-year lows. The Bank of Japan (BOJ) faces a difficult task in normalizing monetary policy without jeopardizing economic recovery.

The widespread weakness of the yen, as indicated by a broader trade-weighted gauge, intensifies concerns over imported inflation and the erosion of Japan’s purchasing power. A weaker trade-weighted yen leads to higher costs for imports from a wider range of trading partners, complicating economic management. This situation presents a challenge to the BOJ, with central bank officials reportedly open to accelerating interest rate hikes beyond current consensus expectations.

Japan's trade deficit significantly widened to $2.49 billion (¥406.9 billion) in June, far exceeding market expectations. This record import surge, driven by a 25.4% increase in overall imports and a 59.3% jump in the value of crude oil imports despite falling volumes, highlights how the weak yen and high oil prices are fueling imported inflation. The depreciation of the yen magnifies the cost of energy imports for Japan, which relies heavily on imported energy, especially crude oil.