In Salop’s model of entry deterrence, the unconstrained monopoly earns profits (in present value terms) equal to some amount v0. Suppose v0 = 100. If entry were to occur, the two firms would share the market, each earning v1. (A) Why do we expect 2 v1 to be less than 100 ? (B) The incumbent monopoly can prevent entry by expending a fixed and irreversible amount C that the entrant must match. What conditions on the size of C will both successfully prevent entry, and equally importantly, result in greater profit for the incumbent than by allowing entry?

A monopoly produces a good with a network externality at a constant marginal and average cost of c = $2. In the first period, its inverse demand curve is p 14-1Q. In the second period, its inverse demand curve is p=14-1Q unless it sells at least Q = 8 units in the first period. If it meets or exceeds this target, then the demand curve rotates out by a (it sells a times as many units for any given price), so that its inverse demand curve is p=14- - 1/10. The monopoly knows that it can sell no output after the second period. The monopoly's objective is to maximize the sum of its profits over the two periods. For what values of a would the monopoly earn a higher two-period profit by setting a lower price in the first period? . (round your answer to two decimal places) If a is

A monopoly sells its good in the U.S. and Japanese markets. The American inverse demand function is Pa = 120-Q₂. and the Japanese inverse demand function is P₁ = 100-2Q₁ where both prices, p, and p,, are measured in dollars. The firm's marginal cost of production is m = $20 in both countries. If the firm can prevent resales, what price will it charge in both markets? (Hint: The monopoly determines its optimal (monopoly) price in each country separately because customers cannot resell the good.) The equilibrium price in Japan is $. (round your answer to the nearest penny)

Suppose the monopolist with a marginal cost of 2 is facing two of customers i = {L, H} with the following demand functions: Customer H: qH Customer L: qL = = 6- PH 4- PL The consumer's total payment T;(q) is T;(q) = A; + piq with lump sum payment A and per unit price p. = a. Assume that the monopolist can distinguish between the two groups of consumers. Further, suppose that A₁ 0, meaning the monopolist is charging uniform prices. Find the profit maximizing price the monopolist charges customer H and the price the monopolist charges customer L. b. Assume that the monopolist can perfectly distinguish between the two groups of consumers and can utilize a lump sum payment A¡ > 0. Find the two part tariff the monopolist charges customer H and the two part tariff charged to customer L.

There are two firms in a market, where quantities are the strategic variable within two periods. In each of the two periods t = 1; 2 the inverse demand function Ptis given by P: (y') = 5-y'. The cost function of firm i is given by C=3+2y, where i=1,2. In the first period firm1 is a protected monopolist. Profits of a firm can be interpreted as the sum of its profits in each period. In order to maximize their profits, firms set quantities. Define the monopoly solution. (i) (ii) Firm1 must choose the same quantity in each period y = yf due to the technological restrictions. Considering ył firm2 thinking to enter in period 2. Define the profit maximizing yi if y is given. (iii) Suppose that firm 2 will enter in the second period. What quantity will firm 1 have? What is the equilibrium P, Q and profit?

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Suppose that the monopolist can produce with total cost: TC = goods in two different markets separated by some distance. The demand curves in the first market and the second market are given by Q = 120 - 2P, and Q2 = 240 - 2P,. Suppose that consumers can mail the product from cheaper location to a more expensive location freely (mailing cost $0). What would be the monopolist profit? 10Q. Assume that the monopolist sells its $8000 $7200 $6000 $6400

Economics A market comprises two consumers groups: high- demand types and low-demand types. Assume there are 100 consumers of each type. The high types have demand QH = 14 – Pand low types have demand QL = 12 – P. Assume the marginal (and average) cost is 4 and there are no fixed costs. If the monopolist firm is able to distinguish between the two consumer types and using block pricing to extract maximum profit, how much profit will they earn in total? Select one: а. 9000 b. 6800 С. 8200 d. 7200

An airline has exclusive landing rights at the local airport. The airline flies one flight per day to New York City with a plane that has a seating capacity of 100. The cost of flying the plane per day is $4,000 + 10q, where q is the number of passengers. The number of seats to New York demanded is q = 165 - .5p and so marginal revenue is 330 - 4q. Assume the airline maximizes monopoly profits. (i) What will be the difference between the marginal cost of flying an extra passenger and the amount the marginal passenger is willing to pay to fly to New York City? (ii) What is the loss of consumer surplus from not filling the plane on each flight? (iii) Would it possible to reduce DWL to zero for this market? Explain

Topside Tiles, which produces roofing tiles, is a local monopoly. Its inverse demand function is p=140-2Q, and its constant marginal cost is 10. The owner has delegated the decision of how much output to produce to the plant manager. The manager's income, Y, is 5% of revenue: Y=0.05R. Show that a manager who wishes to maximize income, Y, will choose an output that exceeds the profit-maximizing level. Is there a conflict of interest between the owner and manager? Is this situation an agency problem? (Hint: This problem can be solved using a graph, by using calculus, or by using the rule that the MR curve has twice the slope of the demand curve.) The output that maximizes profit is (Enter your response rounded to one decimal place.) units.