The Japanese yen's decline is hitting household budgets hard. A resident of Fukuoka, Ms. Chen, shared her shopping receipts, noting the price for four packs of diapers jumped from 6,174 yen in April to 6,946 yen this month.
On June 3, the yen briefly weakened past 160 against the US dollar in Tokyo trading, though it later recovered slightly to around 159.8 per dollar. Data from the Bank for International Settructions shows the yen's real effective exchange rate, a measure of its purchasing power against a basket of currencies adjusted for inflation, fell to 65.70 in April, its lowest level since Japan adopted a floating exchange rate system in 1973.
The pain from the yen's depreciation is felt not only in the rising cost of living but also in the climbing operational costs for Japanese companies. From a national fiscal perspective, analysts warn that imported inflation pressures could push up Japanese government bond yields, adding to the country's fiscal burdens.
Facing these mounting pressures, Japanese authorities have intervened in the foreign exchange market multiple times over the past year to defend the currency. Data released by the Ministry of Finance on May 29 confirmed that between April 28 and May 27, authorities spent approximately 11.73 trillion yen (about $736 billion) to buy yen, marking the largest-ever monthly intervention. Despite these repeated efforts, speculators have continued to bet against the yen.
As the yen is labeled the world's weakest major currency, what challenges does this pose for Japan's finances and its people, and what lies ahead for the currency?
Drivers of the Persistent Decline
In recent times, downward pressure on the yen has intensified, with the exchange rate repeatedly testing the 160 yen per dollar level, widely seen as a trigger line for potential government intervention.
Analysts point to multiple factors driving the yen's weakness. Externally, expectations of sustained high US interest rates contrast with the Bank of Japan's cautious approach to monetary tightening, leading to a significant interest rate differential that pressures the yen, compounded by a generally strong US dollar. Internally, imported inflation is negatively impacting the domestic economy, and market concerns over Japan's substantial government deficits continue to undermine confidence in the currency.
The yen's plight has drawn significant market attention. Recently, Robin Brooks, a fellow at the Brookings Institution, noted on social media that based on real effective exchange rates, the yen had weakened beyond the Turkish lira to become the "world's weakest currency."
While rankings by real exchange rates can be debated, experts agree the yen has depreciated to historically low levels. As Japan is not a resource-rich nation, a weaker yen directly translates to higher costs for essentials like electricity, gasoline, bread, and meat. Beyond the pressure on household budgets, it also reshapes cross-border spending patterns, making Japan seem cheaper for foreign visitors while making overseas study and shopping more expensive for Japanese residents—essentially a "downgrade in the currency's purchasing power."
Residents like Ms. Chen report feeling the pinch from higher utility and import goods prices, with increases ranging from a dozen to several dozen yen on various daily items. Media reports from Tokyo supermarkets confirm steady price hikes on frequently purchased goods like olive oil, bread, coffee, chocolate, and beef. While the increase on a single item might seem small, the cumulative effect significantly inflates monthly grocery bills.
Small and medium-sized enterprises in Japan are also struggling. The weak yen dramatically increases the cost of imported raw materials, squeezing profit margins and heightening operational pressures. Although currency depreciation theoretically boosts export competitiveness, this effect is now muted for Japan as a significant portion of its manufacturing base has shifted overseas.
From a broader macroeconomic perspective, the yen's plunge imposes heavier burdens on Japan's public finances. Analysts warn that a weaker yen necessitates greater fiscal spending, exacerbating the government's debt burden. In the long run, this could lead to further government bond issuance, intensifying international market concerns about Japanese debt and potentially triggering a vicious cycle of further yen depreciation.
Market Intervention Fails to Stem Short Selling
In response to the persistent decline, foreign exchange market intervention has been the Japanese government's go-to tool. The latest data from the Ministry of Finance shows interventions totaling 11.73 trillion yen occurred between April 28 and May 27, with operations conducted on April 30 and during the Golden Week holiday in May.
However, the market widely views intervention alone as a temporary fix that cannot fundamentally reverse the yen's downtrend. Bets against the yen continue to grow. Data from the US Commodity Futures Trading Commission for the week ending May 26 indicates leveraged funds and asset managers have collectively increased their net short positions on the yen to the highest level since July 2024.
The essence of shorting the yen is a bet that Japan's structural economic problems cannot be resolved quickly. Key weaknesses include an economy that has become hollowed out due to large-scale industry relocation, with overseas income often retained abroad rather than converted back to yen. Additionally, challenges like an aging population, a shrinking domestic market, and innovation stagnation limit high-return investment opportunities at home, prompting capital outflows that further weigh on the currency.
Other analysts attribute the selling pressure primarily to the wide interest rate gap between the US and Japan. With US rates significantly higher than Japan's near-zero policy rate, investors see a clear advantage in selling yen. Japan's continued fiscal expansion, high energy import costs, and the central bank's slow pace of rate hikes reinforce this view.
Despite recent interventions, the exchange rate quickly returned to around 160 yen per dollar, suggesting such actions can only slow the pace of depreciation, not change the underlying trend. Experts believe authorities will likely intervene again if the dollar-yen pair experiences rapid, one-sided, speculative moves above 160, aiming to disrupt market momentum rather than defend a specific fixed rate. Without a clear path for interest rate hikes and fiscal discipline, interventions merely buy time for policymakers.
Stopping the yen's decline in the short term relies on interest rate policy and FX intervention, but a long-term solution requires making the Japanese economy itself an attractive investment destination. The key lies in addressing structural economic issues to create an environment where businesses and capital can achieve high returns. However, implementing such reforms faces significant political and social hurdles in Japan's current environment.
Experts generally agree that the US-Japan interest rate differential and Japan's fiscal pressures will continue to weigh on the yen. The outlook remains highly dependent on several factors. If the Bank of Japan raises rates in June and outlines a path for policy normalization, coupled with a drop in oil prices and a weaker US dollar, the yen could potentially recover to the 150-155 range against the dollar within the year. Conversely, if US rates remain high, oil prices surge further, and Japan expands fiscal stimulus, the yen is likely to face continued downward pressure.
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