Economics Today: The Micro View (19th Edition) (Pearson Series in Economics)
Economics Today: The Micro View (19th Edition) (Pearson Series in Economics)
19th Edition
ISBN: 9780134479255
Author: Roger LeRoy Miller
Publisher: PEARSON
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Chapter 19, Problem 4P
To determine

In a local market, the monthly price of internet access service decreases from $20 per amount to $10 per account, and the total quantity of monthly accounts across all internet access providers increases from $100,000 to $200,000. What is the price elasticity of demand? Is demand elastic, unit-elastic or inelastic?

Concept Introduction:

Price Elasticity of Demand: It measures the degree of responsiveness to change in quantity demanded due to change in its price. The formula for calculating elasticity of demand is:

e d = ΔQ ΔP × P Q

Where, ΔQ= Change in Quantity demanded (= New Quantity demanded − Initial Quantity demanded)

ΔP= Change in Price (= New Price − Old Price)

P and Q = Initial Price and Quantity demanded.

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