55- 50 45 40- 35 30 25 20 15 10 234 56 -5 -10 -15 -20 +--. -25 -30 ---L -35 -40 -45 -50 -55 (4) Connect the ten dots to form a line and label it as Marginal Revenue (or MR). (5) Now, let's plot the straight line demand curve using the initial point (P, Q) = (S50, 0) and the endpoint (P, Q) - (S0, 10), taken from Columns 1 and 2. Label this line as Demand (or D) (Note: You are to connect two coordinates. No midpoint consideration is needed.) (6) From the graph, the MR curve cut the horizontal axis at the of the horizontal intercept. Answer: (7) At the point you identify in (6), is the demand elastic, unit elastic or inelastic (with respect to own price)? Answer:

55- 50 45 40- 35 30 25 20 15 10 234 56 -5 -10 -15 -20 +--. -25 -30 ---L -35 -40 -45 -50 -55 (4) Connect the ten dots to form a line and label it as Marginal Revenue (or MR). (5) Now, let's plot the straight line demand curve using the initial point (P, Q) = (S50, 0) and the endpoint (P, Q) - (S0, 10), taken from Columns 1 and 2. Label this line as Demand (or D) (Note: You are to connect two coordinates. No midpoint consideration is needed.) (6) From the graph, the MR curve cut the horizontal axis at the of the horizontal intercept. Answer: (7) At the point you identify in (6), is the demand elastic, unit elastic or inelastic (with respect to own price)? Answer:

Principles of Microeconomics

7th Edition

ISBN:9781305156050

Author:N. Gregory Mankiw

Publisher:N. Gregory Mankiw

Chapter15: Monopoly

Section: Chapter Questions

Problem 7PA

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H11. Assume a firm in a competitive market is outputting 500 units and sells each unit for 4 dollars. The average total cost is 3 dollars. What is the total profit? Suppose when a monopoly charges 5 dollars, it sells 2 units of output. When it charges 4 dollars it sells 3 units of output. What is the Marginal Revenue of the 4th output?
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J 7 Conduct an analysis of market structures: Are perfectly competitive markets and their outcomes more preferred than monopolies? Compare the market structures and perfect competition and monopolies, and analyse the advantages and disadvantages of these market structures from the perspective of consumers, producers and a welfare maximising government.
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