Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

suppose that during the past year, the price of a laptop computer fell from $2,5

ID: 1144135 • Letter: S

Question

suppose that during the past year, the price of a laptop computer fell from $2,500 to $2,300. During the same time period, consumer sales increased from 403,000 to 549,000 laptops. from 403,000 to 549,000 laptops. Calculate the elasticity of demand between these two part of the table with the appropriate answers. (Note: price-quantity combinations by using the For decreases in price or quantity, enter values in the Change column with a minus sign,) Quantity following steps. After each step, complete the relevant price or dividing by two. Do the same for the average

Explanation / Answer

1. Original Quantity = 403,000

New Quantity = 549,000

Original Price = 2,500

New Price = 2,300

2. Average price = (2500 + 2300)/2 = 4800/2 = 2400

Average quantity = (403,000 + 549,000) / 2 = 952000/2 = 476000

3. Change in quantity = 549,000 - 403,000 = 146,000

Change in price = 2300 - 2500 = - 200

4. % change in quantity demanded = 146000/476000 = 0.306

% change in price = - 200/2400 = - 0.083

5. Price Ed = % change in quantity demanded / % change in price = 0.306/0.083 = 3.686

6. Using Mid point method:

Ed = (P1 + P2)/(Q1 + Q2) x (Q2 - Q1)/(P2 - P1)

      = (2500 + 2300)/(403000 + 549000) x (549000 - 403000)/(2300 - 2500)

      = 4800/952000 x 146000/(- 200) = - 0.0050 x 730 = - 3.65