Takeshi Niinami, a senior economic advisor to Japan’s prime minister, has said that Japan is considering multiple strategies for upcoming tariff negotiations with the United States.

Niinami, who is also the CEO of Suntory Holdings, emphasized Japan’s role as the largest foreign investor in the US and the foremost holder of US Treasury bonds.

Japan currently possesses about US$1.1 trillion in US Treasurys.

Niinami indicated this could be a significant point of leverage in the negotiations.

These talks follow the recent suspension of a 24% tariff imposed by the US.

🔗 Source: CNBC

🧠 Food for thought

1️⃣ Treasury bonds as economic diplomacy tools have a complex history

Japan’s position as the largest foreign holder of U.S. Treasury bonds (approximately $1.1 trillion) provides significant implicit leverage in trade negotiations, despite public statements that they won’t use this position as a bargaining chip 1.

The bond market’s recent volatility, with 10-year Treasury yields spiking above 4.5%, directly influenced Trump’s decision to suspend the 24% “reciprocal” tariffs, demonstrating the interconnection between financial markets and trade policy 2.

This financial relationship creates mutual dependence. Japan needs stable U.S. bonds for its foreign reserves, while the U.S. relies on foreign buyers to finance its debt, creating natural constraints on how aggressive either side can be in negotiations.

Historical context reveals this isn’t new. During previous trade tensions in the 1980s and 1990s, Japan’s Treasury holdings were similarly part of the implicit negotiation backdrop, though rarely directly threatened 3.

The sensitivity of U.S. mortgage rates to Treasury yields (which move inversely to bond prices) magnifies the economic impact of any bond market disruption, creating political pressure within the U.S. to maintain stable trade relations.

2️⃣ Japan-U.S. trade tensions follow cyclical patterns with evolving leverage points

Current negotiations mirror previous cycles of U.S.-Japan trade friction, most notably the contentious period of the 1980s when Japan’s economic rise triggered aggressive U.S. protectionism 4.

The 1987 imposition of 100% tariffs on $300 million of Japanese goods demonstrates that today’s trade tensions are actually less severe than historical precedents, providing perspective on the current 10% baseline tariff 3.