Demand Chapter 4 Demand Lesson 2: Factors Affecting Demand A. - - PowerPoint PPT Presentation

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Demand Chapter 4 Demand Lesson 2: Factors Affecting Demand A. - - PowerPoint PPT Presentation

Lesson 2: Factors Affecting Demand Chapter 4 Demand Lesson 2: Factors Affecting Demand A. Main Idea: Price changes quantity demanded both because it affects how wealthy consumers perceive themselves to be and because it affects the price of a


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Lesson 2: Factors Affecting Demand

Chapter 4 Demand

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SLIDE 2

Lesson 2: Factors Affecting Demand

  • A. Main Idea: Price changes quantity demanded both because it affects

how wealthy consumers perceive themselves to be and because it affects the price of a good or service in relation to other similar products.

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SLIDE 3

Lesson 2: Factors Affecting Demand

  • Define a change in quantity

demanded.

  • A movement along the

demand curve showing that a different quantity is purchased in response to a change in the price of a product

  • What causes it?
  • only a change in price can

cause a change in quantity demanded

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Lesson 2: Factors Affecting Demand

  • How is the substitution effect

different from the income effect?

  • income effect only deals

with changes in demand due to the change of one price

  • substitution effect is the

change in quantity demanded for a product because its price has shifted in relation to other prices.

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Lesson 2: Factors Affecting Demand

  • How does substitution

effect and income effect affect the demand curve?

  • Causes a shift along the

curve, but does not change the curve itself

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  • B. Main Idea: Factors other than price can change demand.

Lesson 2: Factors Affecting Demand

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Lesson 2: Factors Affecting Demand

  • What causes the

demand curve to shift to the right?

  • An increase in

demand shifts the curve to the right.

  • What causes the demand

curve to shift to the left?

  • A decrease in

demand shifts it to the left

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Lesson 2: Factors Affecting Demand

  • Describe the

relationship in demand between a product and its substitutes.

  • Price of a product

increases, demand for its substitute generally increases.

  • Price of a product

decreases, demand for its substitute generally decreases.

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Lesson 2: Factors Affecting Demand

  • Describe the relationship in

demand between a product and its complement(s).

  • Price of a product

increases, demand for its complement(s) generally decreases.

  • Price of a product

decreases, demand for its complement(s) increases.

  • product use increases the

use of its complement(s)

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Lesson 2: Factors Affecting Demand

  • Can expectations change

the demand for products? Why or why not?

  • Yes
  • Expecting product

breakthroughs can result in fewer purchases now, shifting the curve to the left.

  • Expecting product

shortages can result in people stocking up now, shifting the curve to the right.

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SLIDE 11

Lesson 2: Factors Affecting Demand

  • Why would the number of

consumers in a market shift the demand curve left or right?

  • More consumers usually

means more market demand, so the curve shifts right.

  • Fewer consumers means less

market demand, so the curve shifts to the left.