Trade Wars and the U.S. Dollar

As U.S. trade policy transforms, investors are grappling with the implications for the world’s preeminent reserve currency.

Announced U.S. tariffs aimed at revitalizing domestic manufacturing in the long run could first weaken the U.S. economy and rekindle inflation, casting a shadow over the U.S. investment outlook. As trade barriers rise, longstanding partners are reconsidering their economic ties with the U.S. and contemplating alternative alliances.

With its protectionist policy pivots, the U.S. is giving investors worldwide an occasion to rethink long-held assumptions about the U.S. investment landscape. Witness the recent parallel slides of the U.S. dollar, U.S. equities, and U.S. Treasuries – a combination more often associated with emerging market (EM) economies.

The U.S. has long enjoyed a privileged position, with the dollar serving as the global reserve currency and Treasuries as the go-to reserve asset. However, this status is not guaranteed. If global capital flows into U.S. assets dwindle, it could point toward a more multipolar world with a diminished reliance on a singular reserve currency.

Paradigm shift

For decades, the U.S. has operated on a model of consumption, importing more than it exports. The dynamic of U.S. consumers satiating themselves on an endless supply of cheap foreign goods, and the resulting current account deficit, creates a U.S. capital account surplus.

Nations in the post-Cold-War era – including allies bolstered by NATO security assurances – have been able to prioritize savings and investment over national security spending, often funneling dollars into American financial assets. These international capital inflows have bolstered the dollar’s reserve status, a cornerstone of U.S. economic exceptionalism.

With tariffs disrupting this balance, the financing of America’s twin current account and fiscal deficits may become more challenging, unless there is fiscal support, as countries pursue greater economic and military self-reliance. The breakdown of longstanding global correlations could be painful for a global investor, who may be left wondering how many U.S. assets to own.