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Suppose that a store decreases the price of laundry detergent from $4.1 to $3.5. As a result, quantity demanded increases from 190 to 270.

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

Your answer should be expressed in absolute value terms.

 

Hint




Suppose that a store decreases the price of laundry detergent from $4.3 to $3.4. As a result, quantity demanded increases from 190 to 240.

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




Consider the following demand schedule for books.

PriceQuantity Demanded
$5402
$10397
$15392
$20387
$25382
$30377
$35372
$40367

Suppose that the store increases the price of books from $25 to $30.

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

Make sure that you include a negative sign if necessary.

 

Hint




Consider the following demand schedule for shoes.

PriceQuantity Demanded
$4397
$8393
$12389
$16385
$20381
$24377
$28373
$32369

Suppose that the store increases the price of shoes from $8 to $12.

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

 

Hint




Consider the following demand schedule for books.

PriceQuantity Demanded
$10363
$20323
$30283
$40243
$50203
$60163
$70123
$8083

Suppose that the store increases the price of books from $60 to $70.

Based on this information classify the demand curve.

 

Hint