The United States is a highly developed country, and its economy accounts for approximately a quarter of global GDP and is the world's largest by GDP at market exchange rates.

The New York Stock Exchange and Nasdaq are the world's largest stock exchanges by market capitalization and trade volume.

The U.S. dollar (USD) is the currency most used in international transactions and is the world's foremost reserve currency, backed by its economy, its military, the petrodollar system and its linked eurodollar and large U.S. treasuries market.