fiat money: A type of currency that is issued by a government and has value because the government maintains it and people have faith in its value, rather than being backed by a physical commodity.
monetary policy: The process by which a central bank manages the supply of money, interest rates, and inflation to achieve economic goals such as stable prices and low unemployment.
exchange rate:The value of one currency in relation to another, determining how much of one currency can be exchanged for another and affecting international trade and investment.