Summary
Aggregate Demand (AD) is the total demand for goods and services in an economy, comprising consumption, investment, government spending, and net exports. The AD curve is downward-sloping, and shifts in the curve are influenced by factors like consumer confidence and government policies.
- Aggregate Demand (AD) — the total expenditure on a country's goods and services by households, businesses, government, and foreign entities minus imports. Example: AD includes spending on exports minus imports.
- Consumption — spending by households on goods and services. Example: Buying groceries or paying for a haircut.
- Investment — expenditure by businesses on capital goods. Example: A company purchasing new machinery.
- Government Spending — expenditure by the government on goods and services. Example: Building a new highway.
- Net Exports — the value of a country's exports minus its imports. Example: Selling cars to another country while importing electronics.
Exam Tips
Key Definitions to Remember
- Aggregate Demand (AD)
- Consumption
- Investment
- Government Spending
- Net Exports
Common Confusions
- Confusing AD with individual product demand
- Misunderstanding the factors that shift the AD curve
Typical Exam Questions
- What are the components of Aggregate Demand? Consumption, Investment, Government Spending, Net Exports
- How does a change in interest rates affect Aggregate Demand? Lower interest rates increase AD by boosting consumption and investment
- What causes the AD curve to shift? Changes in consumer confidence, government policies, and trade conditions
What Examiners Usually Test
- Understanding of the components of AD
- Ability to explain shifts in the AD curve
- Impact of economic policies on AD