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AP® Macroeconomics · Unit 4 · Topic 4.4

Banking and the Expansion of the Money Supply: Topic Checklist (Macroeconomics 4.4)

Specific “I can…” statements for bank balance sheets, reserves and the money multiplier, each linked to the guide section and practice question that shows whether you can really do it.

Work through the list without notes. If you cannot do a statement, follow its link, then come back. Guide = study guide; Practice = practice questions.

Understanding

  • I can place reserves, loans, securities, demand deposits and owners’ equity on the correct side of a bank’s balance sheet. (Guide: “What a bank does”; Practice Q6)
  • I can explain fractional reserve banking and why a single bank can lend only its excess reserves. (Guide: “Fractional reserve banking”; Practice Q2)
  • I can explain how one bank’s loan becomes another bank’s deposit, so lending creates new money in rounds. (Guide: “How the banking system multiplies deposits”, Figure 1)

Calculation

  • I can calculate required reserves (rr × demand deposits) and excess reserves (total − required). (Guide: Worked example 1; Practice Q2, Q6(a), Q6(c))
  • I can update a balance sheet after a cash deposit, a loan or a withdrawal and check that it balances. (Guide: Worked example 1; Practice Q6(b), Q6(e), Q7(b))
  • I can calculate the money multiplier as money supply ÷ monetary base, and its maximum as 1 ÷ rr. (Guide: “The money multiplier”; Practice Q1, Q5)
  • I can calculate the maximum change in loans, demand deposits and the money supply, and say which uses the excess reserves and which uses the whole deposit. (Guide: Worked example 2; Practice Q3, Q6(f))

Reasoning

  • I can explain why a cash deposit or withdrawal does not change M1 at first, but changes how much banks can lend. (Guide: Worked example 1 “Check”; Practice Q7(a))
  • I can work out a multiple contraction of the money supply after a withdrawal. (Practice Q7(b)–(d))
  • I can explain why excess reserves held by banks and currency held by the public make the actual expansion smaller than the simple multiplier predicts. (Guide: “Why the simple multiplier overstates expansion”; Practice Q4, Q5(d), Q7(e))

All ticked? Move on to Topic 4.5, The Money Market, or return to the course roadmap.

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