The dollar has been the cornerstone of the international monetary system since the Second World War. It is the most important reserve currency, accounting for at least two-thirds of reserve assets, according to the IMF’s Composition of Foreign Exchange Reserves database. Among central banks that do not report this information to the IMF, it is estimated (e.g. by Brad Setser) that 70 percent is held in dollar assets.
The bulk of foreign exchange transactions involve dollars, and significantly more trade gets settled in dollars than involves the United States. Goldberg […]