
US Dollar
The US Dollar (USD) is the official currency of the United States and one of the most widely used currencies globally. It functions as a medium of exchange, allowing people to buy goods and services, and as a store of value. The dollar is issued and regulated by the Federal Reserve. Its value is influenced by economic factors, interest rates, inflation, and international trade. The US dollar also serves as the world's dominant reserve currency, meaning many countries hold it in their central banks to support their own economies and facilitate international transactions.