4.8

The Money Market and the Loanable Funds Market

AP Macroeconomics

Two Markets, Two Interest Rates

When to Use Which Market

How the Markets Connect

Path 1: Monetary Policy → Money Market → Loanable Funds → AD-AS

Path 2: Fiscal Policy → Loanable Funds → Money Market

Path 3: Fiscal + Monetary Together

Graph Comparison Side-by-Side

Money Market - Y-axis: **Nominal** interest rate - MS: **Vertical** line - MD: Downward-sloping - Fed controls the supply curve

Loanable Funds Market - Y-axis: **Real** interest rate - SLF: **Upward-sloping** (not vertical!) - DLF: Downward-sloping - Market forces and government borrowing determine equilibrium

Five Common AP Exam Scenarios

Scenario 1: Fed Buys Bonds

Scenario 2: Government Increases Deficit Spending

Scenario 3: Both the Fed and Government Act (Policy Mix)

Scenario 4: Increase in Household Saving

Scenario 5: Increase in Business Confidence

The Interest Rate Paradox

Common FRQ Format

AP Exam Tips

Common Mistakes