2.1

The Circular Flow and GDP

AP Macroeconomics

The Circular Flow Model

Two-Sector Model (Households and Firms)

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Households supply factors → earn income → spend on products → firms produce → cycle continues

Extended Model (Adding Government, Foreign Sector, Financial Markets)

Gross Domestic Product (GDP)

Key Words in the Definition

What GDP Includes

What GDP Excludes

Two Approaches to Measuring GDP

Expenditure Approach (Spending Method)

Income Approach (Earning Method)

Worked Example

GDP vs. GNP

AP Exam Tips

Common Mistakes