Suppose a monopolist faces a market demand curve given by P = 50 - Q.  Marginal cost is initially equal to zero and constant.  a.  (5)  Calculate the profit maximizing price and quantity. Use the Lerner index to calculate the price elasticity of demand at this point.  What is the amount of deadweight loss associated with this monopoly

Consider the electricity industry, in which there are very large fixed costs but also in which variable costs are directly proportional to total output so that the marginal cost of each unit produced is small and constant.    a) Assuming that one firm has an electricity monopoly, draw a diagram that shows the price the monopolist charges and the quantity the monopolist sells at this price. Be sure to include marginal cost, average total cost, marginal revenue, and demand curves in your diagram.   What happens if the electricity industry is perfectly competitive? More specifically, let us assume that the marginal cost curve from part (a) is equal to the perfectly competitive market supply curve. In this case, show in a diagram what the perfectly competitive equilibrium price and quantity in this industry are. What will happen to the number of firms producing electricity in the long run? What does this say about the desirability of monopoly vs. perfect competition in this industry?…

The accompanying graph depicts the marginal revenue (MR), demand (D), and marginal cost (MC) curves for a monopoly a. Place point Pi at the profit maximizing price and quantitvy assuming that the monopolist can only charge a single price. 100 95 90 85 80 75 70 65 2 60 b. What are the profits of the firm if it charges a single price? 50 45 Suppose the monopolist able to successfully price discriminate between two groups by charging one group $60 and charging $35 to the other group. c. What are the firm's profits if it charges the two prices as mentioned above? 35 30 25 20 15 10 MR 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95100 Quantity

Suppose a monopolist faces a demand equation given by P=20-Q, and a marginal revenue equation given by MR = 20-2Q, and MC=AVC=ATC=$6. What is the deadweight loss associated with the monopolist?   a) $8.5   b) $33.25   c) $24.5   d) $12.5