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Questions › JNU › JNU SIS 2018 › Q21
2 marks, −1Microeconomics › Monopoly and price discrimination › Multi-plant and multi-product monopolyHardabout 3 min

JNU SIS 2018 Question 21: Monopoly and price discrimination

A firm sells some output in a perfectly competitive market, where the price is 60 per unit, and some on a market in which it has a monopoly, with a demand function p2=100−q2p_2 = 100 - q_2p2​=100−q2​, where q2q_2q2​ is output in the monopoly market. Its total cost function is C=(q1+q2)2C = (q_1 + q_2)^2C=(q1​+q2​)2, where q1q_1q1​ is output in the competitive market. What is the profit maximizing output in the two markets, and price in the monopoly market?

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Plain-text version

A firm sells some output in a perfectly competitive market, where the price is 60 per unit, and some on a market in which it has a monopoly, with a demand function p₂ = 100 - q₂, where q₂ is output in the monopoly market. Its total cost function is C = (q₁ + q₂)², where q₁ is output in the competitive market. What is the profit maximizing output in the two markets, and price in the monopoly market? (A) q₁ = 10, q₂ = 20; p₂ = 80 (B) q₁ = 15, q₂ = 20; p₂ = 60 (C) q₁ = 10, q₂ = 25; p₂ = 70 (D) None of the above

Also written as: A firm sells some output in a perfectly competitive market, where the price is 60 per unit, and some on a market in which it has a monopoly, with a demand function p_2 = 100 - q_2, where q_2 is output in the monopoly market. Its total cost function is C = (q_1 + q_2)^2, where q_1 is output in the competitive market. What is the profit maximizing output in the two markets, and price in the monopoly market?

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

What this question tests

This question is on Multi-plant and multi-product monopoly, part of Monopoly and price discrimination in Microeconomics.

How a monopolist allocates output across plants, markets or products.

TestStop has 9 past-paper questions on this subtopic; the nearest in year are below.

  • IIT JAM 2021 · Q53A firm has two plants with TC₁ = 500 + 30Q₁ and TC₂ = 1500 + 20Q₂. Demand is Q^d = 150 - P/3. The value of…
Practise Monopoly and price discriminationMore on Multi-plant and multi-product monopoly

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