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Multiple Choice
The deadweight loss created by the monopoly is:
A
$0
B
$22.5
C
$45
D
$90
Verified step by step guidance
1
Identify the equilibrium quantity and price in a competitive market by finding where the demand curve (D) intersects the marginal cost curve (MC). This is the socially optimal point.
Determine the monopoly quantity and price by finding where the marginal revenue curve (MR) intersects the marginal cost curve (MC). This is the quantity a monopolist would produce.
Find the price the monopolist would charge by going up from the monopoly quantity to the demand curve (D).
Calculate the deadweight loss, which is the area of the triangle formed between the competitive equilibrium quantity, the monopoly quantity, and the demand curve. The base of this triangle is the difference in quantities, and the height is the difference in prices between the demand curve and the marginal cost curve at the monopoly quantity.
Use the formula for the area of a triangle (1/2 * base * height) to calculate the deadweight loss. This will give you the economic inefficiency created by the monopoly.