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Applications of elasticity concepts


Questions 1 through 6, refer to the following table showing a demand schedule:
Price Quantity Demanded
$200 1000
$150 1400
$100 1800
1. If price falls from $200 to $150, what is the elasticity of demand over this range?
A. -0.625
B. -1.0
C. -1.17
D. -2.5
E. -3.0
2. As output increases from 1,000 to 1,400 what is marginal revenue?
A. $25
B. $50
C. -$400
D. -$25
E. -$75
3. If price falls from $200 to $150,
A. Arrows representing the price and quantity affects both point down.
B. An arrow representing the price effect points down and is longer than an arrow for the quantity effect.
C. An arrow representing the price effect points down and is shorter than an arrow for the quantity effect.
D. Arrows representing the price and quantity effects both point up.
E. Total revenue moves in the same direction as the arrow representing the price effect.
4. If price falls from $150 to $100, what is the elasticity of demand over this range?
A. -0.625
B. -1.0
C. -1.17
D. -2.5
E. -3.0
5. As output rises from 1,400 to 1,800, what is marginal revenue?
A. $25
B. $50
C. -$400
D. -$50
E. -$75
6. If price falls from $200 to $150,
A. Arrows representing the price and quantity affects both point down.
B. An arrow representing the price effect points down and is longer than an arrow for the quantity effect.
C. An arrow representing the quantity effect points up and is shorter than an arrow for the price effect.
D. Arrows representing the price and quantity effects both point up.
E. Total revenue moves in the same direction as the arrow representing the quantity effect.

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