Exorbitant privilege

The term was coined by Valéry Giscard d'Estaing, then French Finance Minister, in the 1960s to criticize the privileged position of the U.S. dollar under the Bretton Woods system. He argued that the dollar's role as the primary reserve currency allowed the U.S. to run persistent balance-of-payments deficits without facing the same constraints as other countries, effectively giving it an 'exorbitant privilege.'¹

Economists have since defined the privilege more precisely as the difference between the yield the U.S. pays on its foreign liabilities and the yield it earns on its foreign assets. This spread, often estimated at 1–2 percentage points, means the U.S. can borrow cheaply in dollars while investing abroad at higher returns, generating net investment income even when its net international investment position is negative.²

The privilege arises from the dollar's unique role: foreign central banks and investors hold U.S. Treasury securities as safe assets, and international trade and finance are largely denominated in dollars. This creates a structural demand for dollars that lowers U.S. borrowing costs and supports the value of the dollar.³

Empirical studies confirm that the U.S. earns a positive net investment income despite being a net debtor. For example, research by Gourinchas and Rey found that the U.S. earns an average excess return of about 1–2% on its foreign assets over liabilities, a benefit that has persisted over decades.⁴ This advantage is partly due to the 'dark matter' of U.S. assets—unmeasured intangible investments like intellectual property and brand value—that generate high returns.⁵

Some economists argue that the privilege is overstated. They point out that the U.S. also bears costs, such as the burden of providing global liquidity and the risk of capital flight if confidence in the dollar wanes.⁶ Others contend that the privilege has declined as the euro and, more recently, the Chinese renminbi have gained reserve status.

The 2008 financial crisis and the 2020 pandemic highlighted the dollar's continued dominance, but also raised questions about the sustainability of the U.S. external position. The rise of digital currencies and geopolitical shifts could erode the privilege over time, though no currency has yet matched the dollar's scale and safety.⁷

One lesser-known aspect is the 'exorbitant duty'—the responsibility that comes with the privilege, such as providing a safe asset and acting as lender of last resort during crises. This was evident in the 2008 crisis when the Federal Reserve established swap lines with other central banks to provide dollar liquidity.

Another edge case is the 'Triffin dilemma,' named after economist Robert Triffin, which warned that the dollar's role as reserve currency would inevitably lead to U.S. deficits, undermining confidence in the dollar—a tension that persists today.¹ Additionally, the privilege is not uniform: it benefits the U.S. financial sector and government, but may harm U.S. exporters by keeping the dollar strong, a point often overlooked in popular discussions.

Reserve currency

A currency held by central banks and other institutions as part of their foreign exchange reserves.

Net international investment position

The difference between a country's external financial assets and liabilities.

Triffin dilemma

A conflict of economic interests that arises when a national currency also serves as a global reserve currency.