Answered: Suppose a country's mobile phone…

Suppose a country's mobile phone industry is supplied by only two firms (i.e. an oligopoly). Explain how the presence of two firms affects the price elasticity of demand of each firm's output.

Microeconomics: Principles & Policy

14th Edition

ISBN:9781337794992

Author:William J. Baumol, Alan S. Blinder, John L. Solow

Publisher:William J. Baumol, Alan S. Blinder, John L. Solow

Chapter13: Between Competition And Monopoly

Section: Chapter Questions

Problem 5DQ

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If you have a graph showing a monopolistic competitive situation in which demand shifts to the left in the long run but your graph only shows the MR curve in the short run, how do you figure out where the long-run MR line should go on the graph? (I have 2 demand curves (sr and lr), but only 1 MR curve (sr). I think it would be to the left of MR sr, but don't know how to draw it. One would need to know this to figure out excess capacity and markup, right?
Firms compete in different types of market structures. In the real world, most markets are either monopolistically competitive or oligopolistic, and a few markets have a monopoly. Note that perfect competition is rare because no market has all the characteristics of a perfectly competitive market as described by the theory of perfect competition. Explain which firm is likely to face a more elastic demand curve: a monopoly or a pizza shop?
Consider a monopolistically competitive market in long-run equilibrium, and a firm that is in the market. Suppose there is a shortage of a key input, so that every firm's ATC curve shifts up by a fixed amount. If the firm remains in the market in the new long-run equilibrium, what happens to the price at which it sells the good, and what quantity does it sell? Price goes down, quantity stays the same Price goes up, quantity stays the same Price goes down, quantity goes down Price goes up, quantity goes down
Which of the following is shared by both monopolistically competitive markets and prefectly competitive markets?
A) Suppose there are just two firms, 1 and 2, in the oil market and the inverse demand for oil is given by P = 90 – 3Q. The marginal cost for each firm is €18. Calculate the level of output that each firm would produce at the Cournot equilibrium. B) Suppose there are just two firms, 1 and 2, in the oil market and the inverse demand for oil is given by P = 60 – Q. The marginal cost for each firm is €36. What price should Firm 1 charge at the Cournot equilibrium? C) Consider the production function Q = 10KL. Will the MRTS for this production function remain constant along the Q = 200 isoquant? Explain briefly.
Dell and Sony compete primarily by price. Each firm must choose either a high price or a low price simultaneously. Use the following information to create the profit matrix: If Dell and Sony both set high prices, Dell’s profit is $40 million and Sony’s profit is $35 million. If Dell sets high price and Sony sets low price, Dell’s profit is $25 million and Sony’s profit is $40 million. If Dell sets low price and Sony sets high price, Dell’s profit is $50 million and Sony’s profit is $10 million. If Dell and Sony set low prices, Dell has $20 million and Sony has $15 million. Please answer the following questions: Does Sony have a dominant strategy? Dell? If so, which one? If Dell and Sony maximize their profits non-cooperatively, what is the Nash-equilibrium for this profit matrix? Instead, if Dell and Sony maximize their joint profits cooperatively, what is the equilibrium? Assume they keep their agreements.
Dell and Sony compete primarily by price. Each firm must choose either a high price or a low price simultaneously. Use the following information to create the profit matrix: If Dell and Sony both set high prices, Dell’s profit is $40 million and Sony’s profit is $35 million. If Dell sets high price and Sony sets low price, Dell’s profit is $25 million and Sony’s profit is $40 million. If Dell sets low price and Sony sets high price, Dell’s profit is $50 million and Sony’s profit is $10 million. If Dell and Sony set low prices, Dell has $20 million and Sony has $15 million. Please answer the follow questions: Does Sony have a dominant strategy? Dell? If so, which one? If Dell and Sony maximize their profits non-cooperatively, what is the Nash-equilibrium for this profit matrix? Instead, if Dell and Sony maximize their joint profits cooperatively, what is the equilibrium? Assume they keep their agreements.
Suppose that a company operates in the monopolistically competitive market for denim jackets. The following graph shows the demand curve, marginal revenue (MR) curve, marginal cost (MC) curve, and average total cost (ATC) curve for the firm. Place a black point (plus symbol) on the graph to indicate the long-run monopolistically competitive equilibrium price and quantity for this firm. Next, place a grey point (star symbol) to indicate the minimum average total cost the firm faces and the quantity associated with that cost. ? 100 PRICE (Dollars per jacket) 8 20 60 50 X ATC 20 MC MR 2 2 2 2 10 0 0 30 40 50 60 70 QUANTITY (Thousands of jackets) 10 20 80 Demand 90 100 Mon Comp Outcome Min Unit Cost
Consider the following Stackelberg duopoly. Both firms produce a homogenous good. Firm 1 chooses how much to supply first. Firm 2 chooses how much to supply after observing the quantity supplied by firm 1. The market demand is Q= 100 – 4 P. For firm i, the total cost of production is TC(q) =5q,+2. What is the optimal quantity supplied by firm 12 10 20 30 40 QUESTION 6 Consider the following Stackelberg duopoly. Both produce a homogenous good. Firm 1 chooses how much to supply first. Firm 2 chooses how much to supply after observing the quantity supplied from firm 1. The market demand is Q= 100 - 4P. For firm i, the total cost of production is TC(q) =5q,+2. What is the market clearing price? O 10 O 15 20 O 25
Suppose that a company operates in the monopolistically competitive market for denim jackets. The following graph shows the demand curve, marginal revenue (MR) curve, marginal cost (MC) curve, and average total cost (ATC) curve for the firm. Place a black point (plus symbol) on the graph to indicate the long-run monopolistically competitive equilibrium price and quantity for this firm. Next, place a grey point (star symbol) to indicate the minimum average total cost the firm faces and the quantity associated with that cost. ? PRICE (Dollars per jacket) 100 90 80 70 60 40 30 20 MC 10 ATC MR Demand 0 0 10 20 30 40 50 60 70 80 90 100 QUANTITY (Thousands of jackets) + Mon Comp Outcome Min Unit Cost Because this market is monopolistically competitive, you can tell that it is in long-run equilibrium by the fact that. firm. Further, a monopolistically competitive firm's average total cost in long-run equilibrium is at the optimal quantity for each the minimum average total cost.
Suppose that a firm produces polo shirts in a monopolistically competitive market. The following graph shows its demand curve, marginal revenue (MR) curve, marginal cost (MC) curve, and average total cost (ATC) curve. Place a black point (plus symbol) on the graph to indicate the long-run monopolistically competitive equilibrium price and quantity for this firm. Next, place a grey point (star symbol) to indicate the minimum average total cost the firm faces and the quantity associated with that cost PRICE (Dollars per shirt) 0 10 20 True O False MR Demand 60 QUANTITY (Thousands of shirts) ATC 40 BO 190 100 Mon Comp Outcorne Because this market is a monopolistically competitive market, you can tell that it is in long-run equilibrium by the fact that optimal quantity for each firm. Furthermore, the quantity the firm produces in long-run equilibrium is Min Unit Cost True or False: This indicates that there is a markup on marginal cost in the market for shirts. at the the efficient scale.
PRICE (Dollars per shirt) 100 90 80 70 60 50 40 30 20 10 0 MC 0 10 ATC True Demand MR + 20 30 40 50 60 70 80 QUANTITY (Thousands of shirts) O False 90 100 + Mon Comp Outcome Min Unit Cost Because this market is a monopolistically competitive market, you can tell that it is in long-run equilibrium by the fact that optimal quantity. Furthermore, the quantity the firm produces in long-run equilibrium is average total cost. at the the quantity at which firms minimize True or False: In long-run equilibrium, a monopolistically competitive firm charges a price that is above marginal cost.