PORTALBERITA.CO.ID - The persistent and substantial gap between Japan's ultra-low interest rates and those maintained by the US and other major economies continues to exert significant downward pressure on the Japanese yen. Policymakers are grappling with increasing domestic strain as elevated import costs directly translate into higher expenses for households, as reported by Businesstimes.

Concerns peaked in late April 2026 when the yen plummeted to its weakest level recorded since July 2024, necessitating swift action. Japanese authorities subsequently deployed a record $74 billion within a single month in targeted efforts intended to stabilize and support the currency's value.

However, this stabilization proved temporary, prompting a strong warning from the government. Finance Minister Satsuki Katayama declared that "the government remains prepared to implement appropriate action if speculative pressure continues," according to Businesstimes.

Adding to the currency's woes are geopolitical factors, specifically the ongoing US-Israel conflict with Iran, which strains Japan’s reliance on energy imports. Since Japan sources over 95 percent of its oil supply from the Middle East, surging crude oil prices necessitate spending more U.S. dollars, inherently reducing demand for the yen.

Structurally, the primary driver remains the significant difference in yields between Tokyo and Washington, which incentivizes capital outflows. Investors are actively capitalizing on this by borrowing cheaply in yen to fund investments in higher-yielding foreign assets globally.

Although the Bank of Japan implemented a rate hike in December—its first in three decades—domestic rates remain exceptionally low by international benchmarks. Furthermore, shifting global inflation dynamics have caused the U.S. to pivot from expected rate cuts to potential hikes, significantly increasing the dollar's appeal.

The currency depreciated notably in late April after the central bank chose not to provide concrete timelines for future rate increases, demonstrating the immediate market reaction to vague official financial signaling. This depreciation, while making Japan an attractive tourist spot and boosting exporter profits, severely damages import-dependent sectors.

The resulting cost-of-living crisis, driven by rising raw material costs squeezing local businesses, has been severe enough to influence political stability, impacting the administration preceding Prime Minister Sanae Takaichi. External political friction also plays a role, with U.S. President Donald Trump frequently criticizing the weak yen for granting Japanese manufacturers an unfair trade advantage.

Direct intervention commenced when the exchange rate hit 160.72 per dollar on April 30, executed under domestic frameworks where the Finance Ministry dictates timing, and the Bank of Japan carries out transactions via commercial banks. These operations involve buying yen and selling dollars from national foreign reserves.