Fiat money

Fiat money is a currency (a medium of exchange) established as money, often by government regulation. Fiat money does not have intrinsic value and does not have use value. It has value only because a government maintains its value, or because parties engaging in exchange agree on its value.[1] It was introduced as an alternative to commodity money (a medium which has its own intrinsic value) and representative money (money which represents something with intrinsic value). Representative money is similar to fiat money, but it represents a claim on a commodity (which can be redeemed to a greater or lesser extent).[2][3][lower-alpha 1]

Yuan dynasty banknotes are a medieval form of fiat money.

Government-issued fiat money banknotes were used first during the 11th century in China.[4] Fiat money started to predominate during the 20th century. Since President Nixon's decision to decouple the US dollar from gold in 1971, a system of national fiat currencies has been used globally.

Fiat money can be:

  • Any money declared by a government to be legal tender.[5]
  • State-issued money which is neither convertible through a central bank to anything else nor fixed in value in terms of any objective standard.[6]
  • Money used because of government decree.[2]
  • An otherwise non-valuable object that serves as a medium of exchange[7] (also known as fiduciary money.)[8]

The term fiat derives from the Latin word fiat, meaning "let it be done"[9] used in the sense of an order, decree[2] or resolution.[10]