Question

Suppose that when the price of peanut butter falls from $2 to $1 per jar, the quantity of jelly purchased rises from 14 million jars to 16 million jars. Instructions: Round your answer to two decimal places. If you are entering a negative number be sure to include a negative sign (-) in front of that number. The cross-price elasticity of demand between peanut butter and jelly using the mid-point method is: . The goods are (Click to select) .

Answer 1

Answer:

-0.20

Explanation:

Cross price elasticity of demand measures the responsiveness of quantity demanded of good A to changes in price of good B.

If cross price elasticity of demand is positive, it means that the goods are substitute goods.

Substitute goods are goods that can be used in place of another good.

If the cross-price elasticity is negative, it means that the goods are complementary goods.

Complementary goods are goods that are consumed together

Cross Price elasticity of demand = midpoint change in quantity demanded / midpoint change in price  

Midpoint change in quantity demanded = change in quantity demanded / average of both demands

change in quantity demanded = 16 million - 14 million = 2 million

Average = (16 million + 14 million) / 2 = 15 million

2 / 15 = 0.133

midpoint change in price = change in price / average of both price

change in price = 1 - 2 = - 1

average of price =(2 + 1) / 2 = 1.5

-1/1.5 = -0.67

0.1333 / -0.67