US Treasury Intervention Signals Japan's Importance Over Europe

The US Treasury recently intervened to support the Japanese yen, which had fallen to its weakest level against the dollar since 1986. In July 2026, the yen's downward pressure was caused by Japan's dependence on imported energy and a weakening economy due to Iran's choking of the Strait of Hormuz.

The US Treasury sold euros instead of dollars to finance the purchases of yen, signaling that Japan is more important than Europe to the US. This move has implications for global markets, as it could create instability if investors have to unwind their positions and repatriate capital back to Japan.

Japan's economic pressure is multifaceted, with a weak yen making its bad problems worse due to higher import costs. The country also faces inflationary pressures, with underlying inflation approaching the Bank of Japan's 2% target despite interest rates being held at 1%. The combination of loose monetary and fiscal policies has led to massive debt and war-induced inflation, putting unprecedented pressure on the yen.

The US intervention may provide temporary stability for the yen, but it does not address the underlying economic pressures. Atul Singh and Manu Sharma argue that technology will not provide an easy escape from these problems, as AI-driven increases in productivity cannot arrive quickly enough to resolve excessive debt, inflated valuations, and the widening gap between money supply and real economic output.