White House Adviser Highlights Yen Stability as Key to Preventing Financial Contagion

Kevin Hassett, the Director of the White House National Economic Council, has underscored the critical role of yen stability in preventing financial contagion from spreading across global markets. His remarks come at a time when the Japanese yen is trading near multi-decade lows against the US dollar, prompting discussions among Japanese officials about potential interventions to stabilize the currency.

The yen has been on a downward trajectory for several months, recently hitting lows against the dollar not seen in decades. Japan’s Finance Minister has indicated that all options, including direct currency intervention, remain on the table. The concern extends beyond the yen itself to the potential impact on Japanese government bonds, which have been experiencing unsettling fluctuations. This volatility raises fears of liquidity pressures that could ripple beyond Tokyo.

Hassett’s focus on yen stability highlights the interconnectedness of US and Japanese financial markets. Japan is one of the largest holders of US Treasury securities, and when Japanese institutions face domestic pressures, they may need to sell foreign assets to stabilize their balance sheets. This dynamic can lead to selling pressure on US Treasuries, resulting in higher yields and tighter financial conditions in the US.

The divergence in monetary policy between the US and Japan adds to the fragility of this situation. While the Federal Reserve has been pursuing its own course on interest rates, the Bank of Japan is gradually moving away from its long-standing ultra-loose policy.

Hassett’s position as head of the National Economic Council, which coordinates economic policy across the executive branch, underscores the significance of his statements. His previous consideration for the Fed Chair position further emphasizes the importance of the US-Japan financial relationship. Given Japan's status as a creditor nation with substantial overseas investments, domestic financial stress can have global repercussions, affecting asset prices in major financial centers worldwide.

As volatility in Japanese government bonds continues, the potential for rapid transmission into global bond markets is a key area to monitor. Should Japanese institutions begin to unwind foreign bond holdings significantly, the implications for US Treasuries could complicate the Federal Reserve's policy decisions.

New Developments on Yen Stability

Japan’s Growth Strategy Minister Minoru Kiuchi emphasized on Bloomberg Television that the government’s spending plans are designed to strengthen the yen, despite its current decline to around 163 per US dollar, a level not seen in nearly four decades.

The Japanese government has outlined a massive fiscal blueprint of ¥370 trillion (approximately $2.3 trillion) in public-private investments aimed for completion by 2040, focusing on 17 priority sectors including defense, artificial intelligence, and semiconductors.

For the fiscal year 2026, Japan's budget is projected to exceed 122 trillion yen (around $783 billion), marking it as one of the largest budgets in the nation's history.

As of mid-2025, Japan's public debt stands at approximately 209% of GDP, the highest among major developed economies. Kiuchi has dismissed concerns about the government artificially suppressing interest rates or abandoning fiscal consolidation goals.

Kiuchi's approach aims to align Japan's fiscal policy evaluation with international standards, suggesting that if the ¥370 trillion investment program yields productivity gains, the debt ratio could become more manageable over time.