Practical Examples of Demand Curve Shifts vs. Movements Along the Curve

📚 Quick Study Guide: Demand Shifts vs. Movements

• 🎯 Demand Curve: Shows the relationship between the price of a good and the quantity demanded, assuming all other factors are constant.
• ➡️ Movement Along the Demand Curve:
  • 💰 Occurs *only* due to a change in the good's *own price*.
  • 📉 If price decreases, quantity demanded increases (movement down the curve).
  • 📈 If price increases, quantity demanded decreases (movement up the curve).
  • 🚫 Represents a change in *quantity demanded*.
• ↔️ Shift of the Demand Curve:
  • 🌍 Occurs when any *non-price determinant of demand* changes.
  • ⬆️ Increase in Demand (Shift Right): Consumers want more at every price.
  • ⬇️ Decrease in Demand (Shift Left): Consumers want less at every price.
  • 📝 Represents a change in *demand* itself.
• 🔑 Key Non-Price Determinants (Factors that Shift Demand):
  • 💸 Income:
    • 📈 Normal Goods: Demand increases with income.
    • 📉 Inferior Goods: Demand decreases with income.
  • 🤝 Prices of Related Goods:
    • 🍎 Substitutes: Price of A increases, demand for B increases.
    • ☕ Complements: Price of A increases, demand for B decreases.
  • 🗣️ Tastes & Preferences: Favorable changes increase demand.
  • 👥 Number of Buyers: More buyers increase demand.
  • 🔮 Expectations:
    • ⬆️ Future Price Increase: Current demand increases.
    • ⬇️ Future Income Increase: Current demand for normal goods increases.

🧠 Practice Quiz

1. Which of the following would cause a movement along the demand curve for smartphones?

1. A. A significant increase in consumer income.
2. B. A new advertising campaign making smartphones more fashionable.
3. C. A decrease in the price of smartphones.
4. D. A sudden rise in the price of apps for smartphones.

2. The demand curve for luxury cars shifts to the right if:

1. A. The price of luxury cars decreases.
2. B. Consumer incomes increase significantly.
3. C. The cost of producing luxury cars falls.
4. D. There is a technological breakthrough making cars more efficient.

3. If the price of coffee dramatically increases, what is likely to happen to the demand for tea (a substitute good)?

1. A. The demand curve for tea will shift to the left.
2. B. There will be a movement down the demand curve for tea.
3. C. The demand curve for tea will shift to the right.
4. D. There will be a movement up the demand curve for tea.

4. A decrease in the price of pizza causes:

1. A. A leftward shift of the demand curve for pizza.
2. B. A rightward shift of the demand curve for pizza.
3. C. A movement down and to the right along the demand curve for pizza.
4. D. A movement up and to the left along the demand curve for pizza.

5. Which of the following is a non-price determinant of demand?

1. A. Production costs.
2. B. Technology.
3. C. Consumer tastes.
4. D. The price of the good itself.

6. If consumers expect the price of gasoline to fall next week, what will likely happen to the demand for gasoline today?

1. A. The demand curve for gasoline will shift to the right.
2. B. The demand curve for gasoline will shift to the left.
3. C. There will be a movement up the demand curve for gasoline.
4. D. There will be a movement down the demand curve for gasoline.

7. When the number of buyers in a market increases, the demand curve for the product:

1. A. Experiences a movement upward along the curve.
2. B. Shifts to the right.
3. C. Shifts to the left.
4. D. Experiences a movement downward along the curve.