Barter allowed perfect matches for every trade

Money reduced complex negotiations by providing a widely accepted medium of exchange

People preferred livestock over grain

Inflation eliminated the need for trading goods

Medium of exchange — comparing apple and orange prices

Unit of measure — using dollars per pound to compare fruit prices

Store of value — handing over cash to buy a burrito

Unit of measure — saving 20% of income each pay period

Money serves as a recognized medium of exchange trusted by buyers and sellers

Sellers always accept only gold coins for food purchases

Prices are set by comparing the cost of different fruits

Inflation guarantees that purchasing power increases over time

It standardizes value so consumers can compare prices like $$1.80/pound for apples versus$$ 2.20/pound for oranges

It ensures money will never lose value over time

It requires trades to happen only through direct exchange of goods

It allows payments only with physical coins, not paper or digital forms

Using dollars to compare the market value of goods

Saving money (e.g., 20% of income each pay period) with confidence it can be used later, despite potential inflation

Eliminating all negotiation from every transaction

Ensuring that prices of goods like fruit never change

Portability

Durability

Uniformity

Acceptability

Divisibility

Portability

Limited supply

Store of value

Uniformity

Divisibility

Acceptability

Durability

Uniformity

Limited supply

Portability

Medium of exchange

To ensure all money looks identical for trust

To prevent both oversupply that causes inflation and undersupply that creates scarcity

To make money easier to divide into smaller units

To require money to be accepted for payment of debts

Durability

Divisibility

Acceptability

Uniformity

Currency is broader than money and includes all forms of value.

Money is a kind of currency used only by banks.

Currency is the official form of money in active circulation, including physical bills/coins and digital/recorded forms.

Money and currency are unrelated concepts.

Medium of exchange, unit of measure, store of value

Durability, portability, acceptability

Income, savings, investment

Tax payment, interest earning, legal status

Any item people use for trade, including IOUs and precious metals

The official form of money in active circulation, including paper bills, coins, and their digital accounting representations

Only physical cash like paper bills and coins issued by private banks

Government taxes collected to fund public services

Its scarcity relative to demand

Its status as legal tender sanctioned by the government

Its acceptance by local merchants

Its backing by gold in a vault

Legal tender laws make it valuable

Intrinsic value based on fundamental properties and usefulness

It is easy to divide into standardized amounts

Governments fix its exchange rate

Redeem it for a fixed quantity of gold

Convert it into silver at market rates

Use it only for private debts, not public taxes

Trade it for foreign currencies without restriction

Fiat currency is backed by precious metals and has intrinsic value

Fiat currency’s value comes from government issuance and the public’s trust, not commodity backing

Fiat currency is any money issued by private banks and guaranteed by merchants

Fiat currency only refers to digital accounts, not paper notes

A watermark proving it contains gold dust

Text stating it is a promissory note and legal tender, backed by the government and payable on demand

The signature of the local merchant who accepts it

A stamp from the central bank allowing foreign exchange

Only physical banknotes that people carry in wallets

Paper money and coins that are legal tender backed by a government promise

Digital balances held in apps with no physical counterpart

Any item used for trade, including barter goods like food

Legal reproduction of currency to replace damaged bills

Illegal imitation or reproduction of currency or documents intended to deceive

Government-approved replicas used for training bank tellers

A form of digital money without physical notes

A government program that sets interest rates

A transaction where goods, services, or assets are traded between parties, usually using money

A marketplace that only handles foreign currency conversions

A savings plan for long-term investments

Advantage: requires internet; Limitation: widely accepted online

Advantage: private and direct; Limitation: can be stolen and isn’t accepted everywhere in the digital age

Advantage: creates bank records; Limitation: backed by government trust

Advantage: reduces theft risk; Limitation: always useful for online shopping

A check is a digital transfer; the payor receives money and the payee sends it

A check is a dated and signed order; the payor directs the bank to pay a specific amount to the payee

A check is legal tender like cash; the payee writes it to the payor to withdraw bills

A check is a card transaction; the bank pays automatically without signatures

Overdraft

Forgery

Bounced check

Wire transfer

ACH transfers are faster and more expensive than wires.

Wire transfers generally process faster and have higher fees than ACH.

Both ACH and wire transfers are slow but inexpensive.

ACH and wire transfers are identical in speed and cost.

Paying for groceries at a supermarket using an ACH.

Sending a large, immediate payment for a home purchase via a wire transfer.

Writing a check to avoid fraud when paying a bill.

Using cash because it provides detailed transaction information like payor name and memo.

Personal savings held in your checking account

Money borrowed from the card issuer to be repaid later

Cash loaded onto the card at an ATM

Cryptocurrency stored in a digital wallet by default

They eliminate the need for internet access to complete any transaction.

They securely store payment information and enable fast electronic payments through apps like Apple Pay and Google Wallet.

They require visiting a bank in person to authorize each payment.

They automatically provide funds even if your linked account has a zero balance.