Money, Banking, and Money Creation
This topic tests money functions, money supply, banks, reserves, required reserve ratio, balance sheets, deposits, loans, and money creation.
How to study for AP Macroeconomics
Build every answer from the model first: define the indicator, draw the correct graph, shift the correct curve, predict outcomes, and explain the economic mechanism.
Core concepts
Concept 1
Banking questions track how deposits, reserves, and loans change money supply.
Exam cue: Identify whether a bank receives a deposit, makes a loan, or holds reserves.
Concept 2
Money creation depends on excess reserves and the reserve requirement.
Exam cue: Calculate required and excess reserves before maximum loan creation.
Concept 3
Balance-sheet changes must keep assets and liabilities organized.
Exam cue: Track whether cash moves into or out of the banking system.
Risk pitfalls and guardrails
Confusing reserves with loans.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Multiplying when the question asks for one bank's initial loan.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Ignoring leakages that reduce money creation.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Memory anchors
Money
Money serves as medium of exchange, unit of account, and store of value.
Money Supply
Money supply measures money available in the economy.
Demand Deposit
A demand deposit is money held in checking accounts.
Reserve
Reserves are bank deposits held in vaults or at the central bank.
Required Reserve Ratio
Required reserve ratio is the fraction banks must hold as reserves.
Excess Reserves
Excess reserves are reserves above the required amount.
Money Multiplier
The simple money multiplier is one divided by the required reserve ratio.
Bank Balance Sheet
A bank balance sheet records assets, liabilities, and net worth.
Liquidity
Liquidity is how easily an asset can be used to make purchases or converted to money.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which of the following is one of the three basic functions of money?
When money is used to express and compare the prices of different goods, it is serving as a
Answer all questions to submit.
Next step personalized recommendations
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Move forward only after this module is stable.
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