Manuel can easily determine that the whole sandwich, while twice as long as the half, is priced at less than twice as much. - Unit of Account
Manuel accumulates money in his savings account for future purchases. - Store of Value
Manuel buys his lunch with a $10 bill. - Medium of Exchange.
Any object that is generally accepted as payment for goods and services is referred to as a medium of exchange in economics. The most widely utilized form of exchange in modern economies is money.
Because most people in the economy view money as valuable, it facilitates trade. Because it is a commonly used token that may be used to exchange for any good or service, money is referred to as a medium of exchange. Gold replaced the barter system as the primary form of exchange in the past.
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