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Question 1

Suppose that a store decreases the price of peanut butter from $4.1 to$3.6. As a result, quantity demanded increases from 200 to 250.

Using the mid-point elasticity approach, calculate price elasticity of demand.

Hint

Question 2

Suppose that a store decreases the price of peanut butter from $4.4 to$3.9. As a result, quantity demanded increases from 200 to 230.

Based on this information, find the price elasticity, which you can use to classify the demand curve as price elastic, unit elastic or inelastic.

Hint

Question 3

Consider the following demand schedule for books.

PriceQuantity Demanded
$5390$10380
$15370$20360
$25350$30340
$35330$40320

Suppose that the store increases the price of books from $30 to$35.

Using the mid-point approach, calculate the percentage change in quantity demanded.

Make sure that you include a negative sign if necessary.

Hint

Question 4

Consider the following demand schedule for jeans.

PriceQuantity Demanded
$7397$14390
$21383$28376
$35369$42362
$49355$56348

Suppose that the store increases the price of jeans from $35 to$42.

Using the mid-point approach, calculate price elasticity of demanded.

Hint

Question 5

Consider the following demand schedule for shoes.

PriceQuantity Demanded
$9395$18386
$27377$36368
$45359$54350
$63341$72332

Suppose that the store increases the price of shoes from $54 to$63.

Based on this information classify the demand curve.

Hint