Unit 4 of Economics: Money and Banking.
This unit covers functions of money, Federal Reserve and interest rates — essential concepts for Economics. Use our interactive study games to test your understanding, or review questions in traditional format below.
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This unit covers functions of money, Federal Reserve and interest rates — essential concepts for Economics. Use our interactive study games to test your understanding, or review questions in traditional format below.
Key Concepts Breakdown
1 Functions Of Money
Money serves three primary functions: medium of exchange, store of value, and unit of account. Students must be able to identify and distinguish each function with examples. Exam questions often ask you to classify a scenario into one of the three functions.
Key Points
- Medium of exchange: money is used to buy and sell goods, eliminating the need for barter
- Store of value: money holds purchasing power over time so wealth can be saved
- Unit of account: money provides a common measure to compare the value of goods and services
- Commodity money has intrinsic value (gold); fiat money has value by government decree
Sarah earns $500 from her part-time job, uses $200 to buy groceries, and saves $300 in her bank account. Which function of money is demonstrated when she buys groceries? Which function is demonstrated when she saves?
Buying groceries uses money as a medium of exchange — she trades money for goods without needing a barter match. Saving the $300 demonstrates money as a store of value, because she is preserving purchasing power for future use. Both functions occur in the same scenario, so read each action carefully on the exam.
2 Federal Reserve
The Federal Reserve (the Fed) is the central bank of the United States and is responsible for monetary policy, regulating banks, and maintaining financial stability. Students must know the Fed's three main tools: open market operations, the discount rate, and the reserve requirement. The Fed acts independently from Congress and the President.
Key Points
- Open market operations: the Fed buys or sells government bonds to expand or contract the money supply
- Discount rate: the interest rate the Fed charges commercial banks for short-term loans
- Reserve requirement: the minimum fraction of deposits banks must hold and not lend out
- Buying bonds increases the money supply (expansionary); selling bonds decreases it (contractionary)
The economy is in a recession. The Fed decides to buy $50 billion in government bonds from commercial banks. Explain what happens to the money supply and why this policy is used.
When the Fed buys bonds, it pays banks with newly created money, which increases bank reserves. Banks can now lend more, expanding the money supply and lowering interest rates. Lower interest rates encourage borrowing and spending, which helps stimulate economic activity and pull the economy out of recession.
3 Interest Rates
Interest rates are the cost of borrowing money, expressed as a percentage of the loan amount. Students must understand the inverse relationship between interest rates and investment/borrowing, and how the Fed influences interest rates through monetary policy. Exam questions frequently link interest rate changes to effects on GDP, inflation, and unemployment.
Key Points
- When interest rates fall, borrowing becomes cheaper, so consumer spending and business investment increase
- When interest rates rise, borrowing costs more, reducing spending and investment — used to fight inflation
- The federal funds rate is the rate banks charge each other for overnight loans; the Fed targets this rate
- Higher interest rates attract foreign investors, increasing demand for the dollar and raising its exchange value
Inflation is running at 6%. The Federal Reserve raises the federal funds rate from 2% to 4%. Predict the effect on consumer borrowing, business investment, and the overall price level.
A higher federal funds rate pushes up borrowing costs across the economy, so consumers take fewer loans and businesses reduce investment spending. With less spending, aggregate demand falls, which puts downward pressure on prices and slows inflation. This is a classic contractionary monetary policy response to above-target inflation.
Questions, answered.
What is Money and Banking?
Money and Banking is Unit 4 of Economics, covering functions of money, Federal Reserve and interest rates.
How to study for Economics Unit 4?
Start with the Quick Summary above, review the Key Concepts, then test yourself with our interactive study games. Aim for 80%+ accuracy before moving on.
How many questions are in this unit?
This unit has 27+ review questions across 5 different game modes.