Answer key for a demand worksheet covering economic concepts like demand shifts, price elasticity, and market equilibrium.
Demand Worksheet Answer Key with questions and answers on demand changes, price effects, and market equilibrium.
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Step-by-step solution for: Demand Worksheet by Intuitive Econ worksheets library
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Step-by-step solution for: Demand Worksheet by Intuitive Econ worksheets library
It looks like you've uploaded a Demand Worksheet Answer Key, which includes several questions related to microeconomics, specifically focusing on demand curves, shifts in demand, and determinants of demand. Since I can't view images directly, I’ll provide a detailed explanation based on the content you’ve described and typical structure of such worksheets.
Let’s go through each question as they appear in standard demand worksheets and explain the solutions step by step:
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This is a classic exercise where students must determine whether a change causes a shift in the demand curve (due to a determinant of demand) or a movement along the demand curve (due to price change).
#### Example:
- "An increase in the price of iPods" → This leads to a movement along the demand curve (quantity demanded decreases).
✔ *Answer:* Movement along the demand curve.
- "A decrease in the price of MP3 players (a substitute)" → Consumers switch to cheaper substitutes, so demand for iPods decreases.
✔ *Answer:* Shift left in the demand curve.
- "An increase in income (iPods are normal goods)" → Demand increases.
✔ *Answer:* Shift right in the demand curve.
> 💡 Key Concept: Only price of the good itself causes movement along the curve. All other factors (income, prices of related goods, expectations, etc.) shift the entire curve.
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- If iPods are normal goods, higher income → more demand.
- Graph:
- X-axis: Quantity of iPods
- Y-axis: Price of iPods
- Original demand curve: D₁
- New demand curve after income increase: D₂ (shifted right)
- Arrow shows the shift from D₁ to D₂
✔ Label: "Increase in income → Increase in demand"
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- A price increase causes quantity demanded to fall (law of demand).
- This is a movement along the demand curve, not a shift.
✔ Answer: Quantity demanded decreases.
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- MP3 players are substitutes for iPods.
- Lower price of substitutes → people buy fewer iPods.
- So, demand for iPods decreases → demand curve shifts left.
✔ Answer: Demand for iPods decreases (shift left).
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- Better technology improves consumer preference → more people want iPods.
- This increases demand → demand curve shifts right.
✔ Answer: Demand increases (shift right).
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- Change in demand: Entire curve shifts due to non-price factors (e.g., income, taste, etc.)
- Change in quantity demanded: Movement along the same curve due to price change.
✔ On graph:
- Shift: D₁ → D₂ (new curve)
- Move along: From point A to B on the same curve
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Options might include:
- A. An increase in income
- B. A decrease in the price of iPods
- C. A new advertising campaign
- D. Expectations of future price increases
✔ Correct answer: B – only price change causes movement along the curve.
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Because the demand curve represents the relationship between price and quantity demanded, holding all else constant. When price changes, we move along the curve. To shift the curve, something other than price must change (like income, preferences, etc.).
✔ Answer: Price changes lead to movements along the curve; only changes in determinants of demand shift the curve.
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- Anticipated future price increase → consumers buy more now to avoid higher prices later.
- This increases current demand → demand curve shifts right.
✔ Answer: Demand increases now (shift right).
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The five main determinants are:
1. Income (normal vs inferior goods)
2. Prices of related goods (substitutes and complements)
3. Tastes and preferences
4. Expectations (about future prices/income)
5. Number of buyers
✔ These are the factors that shift the demand curve.
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- Draw original demand curve D₁.
- After income drops, draw new curve D₂ to the left.
- Label: “Decrease in income → Decrease in demand”
---
- Always remember: Price affects quantity demanded (movement along curve).
- Non-price factors affect demand (shift of the curve).
- Use arrows and labels clearly on graphs.
- For normal goods: ↑ income → ↑ demand; ↓ income → ↓ demand.
---
If you have specific questions about any part of the worksheet or need help interpreting a particular graph or answer, feel free to ask!
Let’s go through each question as they appear in standard demand worksheets and explain the solutions step by step:
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1. Determine how the market for iPods would be affected in response to each of the following changes.
This is a classic exercise where students must determine whether a change causes a shift in the demand curve (due to a determinant of demand) or a movement along the demand curve (due to price change).
#### Example:
- "An increase in the price of iPods" → This leads to a movement along the demand curve (quantity demanded decreases).
✔ *Answer:* Movement along the demand curve.
- "A decrease in the price of MP3 players (a substitute)" → Consumers switch to cheaper substitutes, so demand for iPods decreases.
✔ *Answer:* Shift left in the demand curve.
- "An increase in income (iPods are normal goods)" → Demand increases.
✔ *Answer:* Shift right in the demand curve.
> 💡 Key Concept: Only price of the good itself causes movement along the curve. All other factors (income, prices of related goods, expectations, etc.) shift the entire curve.
---
2. Draw a graph showing the effect of an increase in income on the demand for iPods.
- If iPods are normal goods, higher income → more demand.
- Graph:
- X-axis: Quantity of iPods
- Y-axis: Price of iPods
- Original demand curve: D₁
- New demand curve after income increase: D₂ (shifted right)
- Arrow shows the shift from D₁ to D₂
✔ Label: "Increase in income → Increase in demand"
---
3. Assume the price of iPods increases. What happens to quantity demanded?
- A price increase causes quantity demanded to fall (law of demand).
- This is a movement along the demand curve, not a shift.
✔ Answer: Quantity demanded decreases.
---
4. Suppose that the price of MP3 players falls. What happens to the demand for iPods?
- MP3 players are substitutes for iPods.
- Lower price of substitutes → people buy fewer iPods.
- So, demand for iPods decreases → demand curve shifts left.
✔ Answer: Demand for iPods decreases (shift left).
---
5. Suppose that new technology makes iPods more efficient and enjoyable to use. How does this affect demand?
- Better technology improves consumer preference → more people want iPods.
- This increases demand → demand curve shifts right.
✔ Answer: Demand increases (shift right).
---
6. Use the graph to show the effect of a change in demand vs. change in quantity demanded.
- Change in demand: Entire curve shifts due to non-price factors (e.g., income, taste, etc.)
- Change in quantity demanded: Movement along the same curve due to price change.
✔ On graph:
- Shift: D₁ → D₂ (new curve)
- Move along: From point A to B on the same curve
---
7. Which of the following would cause a movement along the demand curve?
Options might include:
- A. An increase in income
- B. A decrease in the price of iPods
- C. A new advertising campaign
- D. Expectations of future price increases
✔ Correct answer: B – only price change causes movement along the curve.
---
8. Explain why a change in the price of iPods does NOT shift the demand curve.
Because the demand curve represents the relationship between price and quantity demanded, holding all else constant. When price changes, we move along the curve. To shift the curve, something other than price must change (like income, preferences, etc.).
✔ Answer: Price changes lead to movements along the curve; only changes in determinants of demand shift the curve.
---
9. Suppose that consumers expect the price of iPods to rise next month. What will happen now?
- Anticipated future price increase → consumers buy more now to avoid higher prices later.
- This increases current demand → demand curve shifts right.
✔ Answer: Demand increases now (shift right).
---
10. Identify the determinants of demand.
The five main determinants are:
1. Income (normal vs inferior goods)
2. Prices of related goods (substitutes and complements)
3. Tastes and preferences
4. Expectations (about future prices/income)
5. Number of buyers
✔ These are the factors that shift the demand curve.
---
Bonus: Graphing Exercise – Show a decrease in demand due to lower income
- Draw original demand curve D₁.
- After income drops, draw new curve D₂ to the left.
- Label: “Decrease in income → Decrease in demand”
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Final Notes:
- Always remember: Price affects quantity demanded (movement along curve).
- Non-price factors affect demand (shift of the curve).
- Use arrows and labels clearly on graphs.
- For normal goods: ↑ income → ↑ demand; ↓ income → ↓ demand.
---
If you have specific questions about any part of the worksheet or need help interpreting a particular graph or answer, feel free to ask!
Parent Tip: Review the logic above to help your child master the concept of demand worksheet answers.
