Money

Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context. It serves important functions like being a medium of exchange, a unit of account, a store of value, and sometimes a standard of deferred payment.

Historically, money started as an emergent market phenomenon that had real value because it was made from valuable materials like gold or silver, known as a commodity. Today, most money systems use fiat money, which has value because a government says it does. This means that paper money and coins, as well as numbers in bank accounts, are trusted as value even though the paper itself isn’t valuable.

The money supply of a country includes all the currency in circulation like banknotes and coins, as well as money in bank accounts. While physical cash is important, most of the money in developed countries exists as numbers in banks and can be moved using cashless payment methods.

Etymology

The word money comes from the Latin word moneta, which means "coin." This term has roots in ancient Rome, where there was a temple dedicated to the goddess Juno Moneta. This temple was where Roman coins were made. The name "Juno" might have come from an Etruscan goddess named Uni, and "Moneta" could mean "to warn" or "to instruct" in Latin, or "alone" and "unique" in Greek.

In the Western world, another old word for coins is specie, which comes from the Latin phrase in specie, meaning "in kind" or "in actual form."

History

Main article: History of money

Long ago, people traded goods directly, a system known as barter, but most societies didn’t rely only on this. Instead, they often gave gifts or kept track of debts. Over time, many cultures began using objects like shells, grains, or metal as money. For example, the people of Mesopotamia used small weights of barley called shekels, while others used special shells known as cowry shells.

Later, societies started using precious metals like gold and silver for coins. Eventually, banks began issuing paper notes that could be exchanged for these metals. Paper money first appeared in China and later spread to Europe. After World War II, most countries moved to fiat money, which isn’t backed by gold but by government trust and the promise that it can be used to pay taxes.

Functions

See also: Monetary economics

Money has several important functions that help people and businesses trade and manage their wealth. One key function is as a medium of exchange, which means money makes it easier to buy and sell goods and services without needing to trade one item directly for another. This helps avoid problems where one person might not have what another person wants.

Another important function is as a unit of account. This means money provides a standard way to measure the value of things. It helps people know how much things are worth and makes it easier to set prices and keep track of money in business activities. Money also works as a store of value, meaning it can be saved and used later when needed, as long as its value stays fairly stable over time.

Main article: Medium of exchange

Main article: Unit of account

Main article: Standard of deferred payment

Main article: Store of value

Properties

Money has important functions: it helps us trade, measures value, and stores worth over time. For money to work well, it needs to be fungible, meaning each piece can be swapped for another; durable, so it lasts through use; divisible into small parts; portable, easy to carry; acceptable, so most people agree to take it; and scarce, with limited amounts available. These qualities make money useful and reliable for everyday use.

Main article: Properties of money

Money supply

In economics, the money supply is the total amount of money available in an economy for buying goods and services. It includes different types of money, such as coins, bills, and money in bank accounts. Economists measure the money supply in different ways, called monetary aggregates, like M1, M2, and M3. M1 includes the most easily used money, like cash and checking accounts, while M3 includes less easily used money, like larger bank deposits.

Money is created in two main ways. First, central banks create cash by printing banknotes and minting coins. Second, banks create money when they give out loans, which become deposits in accounts. This type of money, called bank money, makes up the largest part of the money supply in developed countries. Money is very liquid, meaning it can be easily traded for other things, making it easy for people to buy and sell goods without needing to trade items directly.

Types

Commodity

Many items have been used as commodity money, such as naturally scarce precious metals, conch shells, barley, beads, and more. The value of commodity money comes from the material it is made from. Examples include gold, silver, copper, rice, Wampum, salt, peppercorns, large stones, decorated belts, shells, alcohol, cigarettes, cannabis, candy, and others. These items were used to measure value in different ways.

Representative

Representative money is made of tokens like coins or paper that can be exchanged for a fixed amount of a valuable commodity, such as gold or silver. The value of this money depends on the commodity it represents, not the material the token is made from.

Fiat

Fiat money has value because a government says it does, not because it is made from valuable materials. Most money today is fiat money, created by governments and used as payment for goods and services. For example, paper money and coins from central banks, like the Federal Reserve System in the U.S., are considered legal tender.

Coinage

Coins are made from metals like copper, silver, and gold. They were stamped to show their weight and value. Coins made it easier to trade and helped create a standard way to measure value. Different metals were used for different types of purchases: gold for big buys, silver for medium ones, and copper for everyday small transactions.

Paper

Paper money began in premodern China when people needed a lighter way to carry value instead of heavy coins. Merchants started giving out receipts for deposits, which later became government-issued notes. Paper money also appeared in the medieval Islamic world, where traders developed many banking ideas like credit and cheques. In Sweden, paper money was first used in 1661 because the country had lots of copper but needed a lighter way to handle money.

Commercial bank

Commercial bank money is the money in your bank account. You can use it to buy things or withdraw as cash anytime. Banks keep only a small part of this money as reserves and can lend out the rest, which creates more money in the economy.

Digital or electronic

With computers, money can now exist digitally. By the 1990s, most money moved between banks was electronic. Today, most money exists as digital currency in bank databases. In 2008, Bitcoin was created as a digital currency that does not need banks or governments to work. It uses a network of computers to keep track of transactions.

Main article: Commodity money

Main article: Representative money

Main article: Fiat money

Main article: Coin

Main article: Banknote

Main article: Demand deposit

Main articles: Digital money and Bitcoin

Monetary policy

Main article: Monetary policy

When gold and silver were used as money, the supply of money depended on how much of these metals could be mined. This could change quickly during times when new gold was discovered, such as during gold rushes or when new lands were explored. Such changes could affect the value of money.

Today, most countries use fiat money, which is not tied to the value of gold. Instead, a central bank controls the amount of money in the economy through monetary policy. This helps keep prices stable and supports economic growth. Central banks use various tools, like changing interest rates or buying and selling currency, to influence the economy.

Locality

Money works differently depending on where you are. In most places, people use one main type of money to buy things and pay taxes. Governments often encourage using certain types of money and may punish fraud.

Sometimes, places near borders might accept more than one type of money. People can also change the money they use, like when a country switches to a new currency. Even without government action, people might stop using money that loses value quickly. Money can also change through new ideas, like using checks instead of cash. Sometimes, people find new ways to trade, like using items such as cigarettes.

Financial crimes

Main article: Counterfeit money

Counterfeit money is fake currency made without government permission. People have been making fake money almost as long as real money has existed. In the past, people used things like shells or precious metals that were hard to copy as money. During World War II, some groups tried to make fake British pounds and American dollars. Today, there are very well-made fake U.S. dollars called Superdollars.

Money laundering is when people try to make money from illegal activities look like it came from a legitimate source. This can involve many types of financial systems, including digital currencies, and is often linked to serious crimes.