U.S. dollar international transactions reserve currency its military petrodollar eurodollar U.S. treasuries market use it as their official currency de facto currency New York City financial center largest New York Stock Exchange Nasdaq largest stock exchanges market capitalization trade volume intern military
The U.S. dollar is the currency most used in international transactions and is the world's foremost reserve currency, backed by the country's dominant economy, its military, the petrodollar system, and its linked eurodollar and large U.S. treasuries market. Several countries use it as their official currency and in others it is the de facto currency. New York City is the world's principal financial center, with the largest economic output, and the epicenter of the principal American metropolitan economy. The New York Stock Exchange and Nasdaq, both located in New York City, are the world's two largest stock exchanges by market capitalization and trade volume.
