Money gives people a shared unit for prices and debts, a way to settle payments, and a means of carrying purchasing power forward.
Money works because people and institutions expect others to accept it. Modern economies use several forms of money, including physical currency and balances recorded in bank accounts.[1]
Three functions make exchange easier
As a means of payment, money avoids the need for two people to want exactly what the other offers. As a unit of account, it gives prices, wages, assets, and debts a common measurement. As a store of value, it allows purchasing power received today to be used later.
These functions are related but imperfect. A currency can remain useful for everyday payments while losing purchasing power through inflation. An asset can preserve value over long periods yet be too volatile or difficult to transfer for routine purchases.
Money can be physical or recorded
Notes and coins are currency, but much of the money used for payments exists as account balances. A bank transfer changes records rather than moving physical cash. Payment cards and apps usually provide access to money held elsewhere; the card or app is not itself the money.
Money is also different from wealth. Wealth can include property, businesses, securities, and other assets. These may be valuable without being immediately accepted to settle a bill.
Stable face value does not guarantee stable purchasing power
A €100 balance remains €100 in nominal terms unless fees or transactions change it. What it can buy depends on prices. If prices rise broadly, the same nominal balance generally buys less. Liquidity and access matter too: contractual restrictions, technical outages, institutional distress, or legal limits can affect whether a balance is available when needed.
Frequently Asked Questions
No. Notes and coins are currency and a form of money, while transferable bank deposits can also
perform money's core functions.
A credit card is generally a payment and borrowing mechanism. It gives access to credit that is
later settled with money; the card itself is not money.
No. Inflation can reduce purchasing power, exchange rates can change, and access or issuer risks
can affect particular forms of money.