The Japanese yen has been weakening persistently, nearing its lowest level since 1986. Despite the Bank of Japan (BOJ) raising its policy interest rate to 1%—the highest in 31 years—and jointly deploying a record 11.7 trillion yen in currency intervention with the Ministry of Finance, the depreciation trend remains uncontained.
Why Rate Hikes and Intervention Fail to Stop the Yen's Slide
Analysts point to a core contradiction: the continued expansion of the U.S.-Japan interest rate differential. The short-end spread has reached 263 basis points, encouraging crowded carry trades where investors borrow low-cost yen to invest in higher-yielding dollar assets, putting persistent downward pressure on the yen. Additionally, Japan's massive public debt severely limits the BOJ's ability to raise rates further. Meanwhile, the Federal Reserve's hawkish shift and heightened geopolitical energy risks are exacerbating imported inflation in Japan, highlighting how the country's monetary policy autonomy has been deeply constrained by the U.S. interest rate cycle.
The yen's depreciation carries significant implications for Japan's economy. Rising import costs push up domestic prices, while exporters benefit from a weaker currency. However, the overall economy faces the dual challenge of inflationary pressure and slowing growth.