2.1

The Circular Flow and GDP

AP Macroeconomics

The Circular Flow Model

Two-Sector Model (Households and Firms)

2040608010020406080100Product MarketFactor MarketHouseholdsFirmsSpending flowIncome flow

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

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

Gross Domestic Product (GDP)

Key Words in the Definition

What GDP Includes

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What GDP Excludes

Two Approaches to Measuring GDP

Expenditure Approach (Spending Method)

Income Approach (Earning Method)

Worked Example

GDP vs. GNP

AP Exam Tips

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Common Mistakes

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