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Questions › JNU › JNU SIS 2013 › Q5
4 marks, −1Microeconomics › Monopoly and price discrimination › Welfare cost of monopolyModerateabout 1 min

JNU SIS 2013 Question 5: Monopoly and price discrimination

A monopolist has constant marginal costs at Re 1 per unit, and zero fixed costs. It faces the demand curve D(p)={100p,p≤200,p>20D(p) = \begin{cases} \dfrac{100}{p}, & p \le 20 \\ 0, & p > 20 \end{cases}D(p)=⎩⎨⎧​p100​,0,​p≤20p>20​ where ppp is price.

If the government could set a price ceiling on the above monopolist (in Question No. 4) in order to force it to act as a competitor, what price should it set?

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Plain-text version

A monopolist has constant marginal costs at Re 1 per unit, and zero fixed costs. It faces the demand curve D(p) = { 100/p, p ≤ 20; 0, p > 20 } where p is price. If the government could set a price ceiling on the above monopolist (in Question No. 4) in order to force it to act as a competitor, what price should it set? (A) 10 (B) 20 (C) 1 (D) None of the above

Also written as: A monopolist has constant marginal costs at Re 1 per unit, and zero fixed costs. It faces the demand curve D(p) = { 100/p, p <= 20; 0, p > 20 } where p is price. If the government could set a price ceiling on the above monopolist (in Question No. 4) in order to force it to act as a competitor, what price should it set?

Monopoly and price discrimination has come up 128 times in 7 exams since 2004.

What this question tests

This question is on Welfare cost of monopoly, part of Monopoly and price discrimination in Microeconomics.

The deadweight loss from monopoly pricing and how it compares with competition.

TestStop has 12 past-paper questions on this subtopic.

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Question from the JNU SIS 2013 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.