Exorbitant Privilege

6 ideas

1. Multiple reserve currencies can coexist stably

   The belief that network effects make international currency status winner-take-all is historically false. Before 1914, sterling, the franc, and the mark shared reserve roles, and in the 1920s the dollar and sterling split them roughly evenly. Modern markets are deep and trading is cheap, so the costs of holding several currencies are low, and a multipolar system with the dollar, euro, and renminbi is a plausible stable outcome rather than a transitional anomaly.

2. Fed-built acceptance market internationalizes dollar

   Before 1914, US trade was financed in London because the US had no central bank and no market in dollar trade acceptances. After the Federal Reserve Act of 1913, the Fed deliberately bought acceptances to create a liquid dollar trade-credit market. Within about a decade the dollar rivaled sterling. The case shows that currency internationalization can be engineered by institutional design and happen quickly, not only through slow organic accretion.

3. Exorbitant privilege as seigniorage plus yield gap

   The privilege of issuing the dominant currency has two parts. The first is seigniorage: foreigners hold dollar notes, which the US creates at near-zero cost. The second and larger part is a return differential: foreigners buy low-yield US Treasuries while US investors earn higher returns abroad, so the US can run external deficits more cheaply.

4. Three preconditions for an international currency

   A currency gains international use when three conditions hold. The issuer must have financial markets that are deep, liquid, and open. The currency must have stable value, backed by credible monetary and fiscal policy. The issuer must offer the geopolitical backing and rule of law that give foreign holders security. The euro falls short on unified fiscal and political backing, and the renminbi falls short on openness and legal credibility, which is why neither yet displaces the dollar.

5. Dollar's end would come from US mismanagement

   The realistic threat to dollar dominance is not a rival currency overtaking it on its merits. It is the US itself undermining confidence through unsustainable deficits, political dysfunction, or inflation. A crisis of this kind could produce a sudden, disorderly flight from dollar assets rather than a gradual erosion, so the most important variable in the dollar's future lies in Washington, not Beijing or Frankfurt.

6. Global liquidity demand versus anchor-currency discipline

   The Triffin dilemma frames the issuer's position as a trap. To supply the world with reserves, the dollar's issuer must run persistent external deficits, but those deficits gradually erode confidence in the reserve asset. Viewing Bretton Woods' collapse, and the imbalances of the 2000s, through this tension shows that the reserve role creates the conditions for its own instability.

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