About What Is Money?
Money is a tool for coordinating exchange. Economists often describe three major functions: a medium of exchange, a unit of account, and a store of value. Money works because people expect others to accept it and because institutions support that trust.
Medium of Exchange
Money lets buyers and sellers trade without needing a direct barter match.
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Prices use money as a common measuring system.
Learn MoreStore of Value
Money can move purchasing power through time.
Learn MoreTrust
Money depends on shared acceptance.
Learn MoreForms of Money
Money can be coins, notes, bank deposits, or digital balances.
Learn MoreLegal Framework
Governments and central banks create rules around currency and payment systems.
Learn MoreInflation
Inflation is a general rise in prices over time.
Learn MoreBarter
Barter is direct exchange without money.
Learn MoreMedium of Exchange
A farmer does not need to find a mechanic who also wants vegetables. Money separates selling from buying.
Unit of Account
A common unit lets people compare the cost of shoes, food, rent, labor, and thousands of other things.
Store of Value
Inflation means money's purchasing power can change, so money is not a perfect store of value.
Trust
Currency works because people believe others will accept it for goods, services, taxes, and debts.
Forms of Money
Most modern money is not physical cash. Bank account balances and electronic payments represent a large share of everyday transactions.
Legal Framework
Laws define official currency, banking requirements, counterfeiting rules, and settlement systems.
Inflation
When prices rise faster than income, the same amount of money buys less. Moderate inflation and deflation both influence economic decisions.
Barter
Barter still exists, but it becomes difficult when people disagree about values or do not want what the other person offers.