A decade after the global financial crisis, the dollar continues to maintain its status as the chief international currency. Possible alternatives such as the euro or renminbi lack the broad financial markets that the U.S. possesses, and in the case of China the financial openness that allows foreign investors to enter and exit at will. Any change in the dollar’s predominance, therefore, will likely occur in response to geopolitical factors.
Linda S. Goldberg and Robert Lerman of the Federal Reserve Bank of New York provide an update on the dollar’s various roles. The dollar remains the dominant reserve currency, with a 63% share of global foreign exchange reserves, and serves as the anchor currency for about 65% of those countries with fixed exchange rates. The dollar is also widely utilized for private international transactions. It is used for the invoicing of 40% of the imports of countries other than the U.S., and about half of all cross-border bank claims are denominated in dollars.
This wide use of the dollar gives the U.S. government the ability to fund an increasing debt burden at relatively low interest rates. Moreover, as pointed out by the New York Times, the Trump administration can enforce its sanctions on countries such as Iran and Venezuela because global banks cannot function without access to dollars. While European leaders resent this dependence, they have yet to evolve a financial system that could serve as a viable alternative.