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Fiat money

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Fiat money is a specific type of government-issued currency. It is authorized by government regulation to serve as legal tender. Unlike commodity money, fiat money is not backed by a precious metal like gold or silver. It is also different from representative money. Representative money is backed by a commodity that can be redeemed for a specific value. Fiat money has no such backing or intrinsic value. It works because people agree to use it as a medium of exchange. They trust that merchants will accept it to pay for debts and goods.

The mechanism of fiat money relies heavily on social trust and government decree. The term comes from the Latin word meaning "let it be done." This refers to the order or decree that makes the money official. In economic models, such as those by Lagos and Wright, money lacks intrinsic worth. However, agents in a community get more goods when they trade using this money. The value is created internally by the community through consensus. At an equilibrium, this system makes trades possible that would otherwise be impossible. This creates a stable environment for buying and selling.

Yuan dynasty banknote with its printing plate 1287
Yuan dynasty banknote with its printing plate 1287

There are several ways fiat money can be categorized or used. It can be money declared by a government to be legal tender. This means it must be accepted in payment for a debt under specific circumstances. It can also be state-issued money that is not convertible through a central bank. Such money is not fixed to any objective standard like a metal. Some forms are known as fiduciary money. This is an object that has no value on its own but serves as a medium of exchange. These different types all rely on the authority of the issuing institution.

The history of fiat money began in China during the 7th century CE. The Song dynasty issued the first paper money, called jiaozi, around the 10th century. These notes were originally valued at exchange rates for silk, gold, or silver. However, the government never actually allowed people to convert them in practice. As more notes were printed without retiring old ones, inflation became a problem. Later, the Yuan dynasty used paper currency as the main circulating medium. The founder, Kublai Khan, issued money known as jiaoochao. The traveler Marco Polo described this system in his writings.

Yuan dynasty banknote with its printing plate 1287
Yuan dynasty banknote with its printing plate 1287

In Europe, different methods emerged to handle currency shortages. Around 1150, the Knights Templar issued notes to pilgrims. These documents allowed travelers to receive funds in the Holy Land. In 1661, Johan Palmstruch issued the first regular paper money in the West. This happened in Sweden through the Bank of Stockholm. A unique example occurred in New France during the 17th century. The Intendant of Finance, Jacques de Meulles, faced a severe shortage of coins in 1685. He issued paper money made from cut-up playing cards to pay soldiers. These cards were accepted widely and circulated for many years.

Yuan dynasty banknote with its printing plate 1287
Yuan dynasty banknote with its printing plate 1287

While fiat money is useful, it has faced historical objections. In 1787, George Washington wrote that paper money could ruin commerce. He worried it could lead to fraud and injustice. In the mid-1800s, Karl Marx analyzed the shift from metallic bases to fiat systems. He noted that the printing press is inexhaustible. He argued that if a bank does not rest on metal, it relies on a nation's products and labor. Modern economists like David Harvey note that this can lead to inflation. This happens when there is an increase in the price of products and labor.

Today, the global economy is almost entirely based on fiat money. A major turning point occurred in 1971. US President Richard Nixon decided to suspend the convertibility of US dollars to gold. Following the Jamaica Accords in 1976, all major world currencies became fiat money. This shift allows for a flexible system of national currencies. It connects different economies through a standardized way of valuing goods. This system remains the foundation for modern international trade and finance.

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