Fiat

Fiat currency is a government-issued currency that is not backed by a physical commodity, such as gold or silver. Instead, its value is derived from the faith and credit of the issuing government, and it is used as a medium of exchange for goods and services.

Examples of fiat currencies include the US dollar, the Euro, the Japanese yen, and the Chinese yuan. Unlike commodity money, such as gold or silver, fiat currency is not limited by its intrinsic value and can be printed and distributed by the government as needed.

One of the key features of fiat currency is its legal tender status, which means that it is accepted as payment for all debts, public and private, within a particular country. This status is typically enforced by law, and failure to accept fiat currency as payment can result in legal penalties.

Fiat currency is widely used around the world and is the dominant form of currency in most countries. It is also the primary currency used to trade with cryptocurrencies on exchanges. 

However, it is subject to inflation and other economic factors that can impact its value.

Fiat currency is an essential component of the global economy, providing a means of exchange and facilitating trade and commerce. While it is not without its flaws, it remains the most widely accepted and utilized form of currency in the world today.