What you'll learn
What determines consumer demand.
Key ideas
- Demand falls as price rises (movement along the curve).
- Income effects: normal vs inferior goods.
- Complements and substitutes shift the demand curve.
Exam tips
- Distinguish a shift from a movement.
- Give clear examples of complements/substitutes.
Common mistakes
- Confusing shifts with movements.
- Mixing up complements and substitutes.