13 sellers and 13 buyers are each willing to buy or sell one unit of a good, with values {$13, $12, $11, $10, $9, $8, $7, $6, $5, $4, $3, $2, $1}. If there is a single monopoly market-maker who keeps as profit the difference between bid and ask prices, the equilibrium quantity traded in the market is:   A. 7.   B. 4.   C. 1.   D. 10.   Why?

Give typing answer with explanation and conclusion  A monopolist faces market demand given by P = 1000 – 10Q. For this market, MR = 1000 – 20Q, MC = 100 + 10Q and ATC = 100 + 5Q. If the monopolist does not price discriminate, what is the value of consumer surplus?

Juan's demand for ice cream from the Ice Cream Monopoly Company is illustrated in the figure below. $ per cone 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0 1 Juan's Demand for Ice Cream 2 3 4 5 6 8 Ice Cream Cones 9 Demand 10 11 12

The figure on the right shows the demand schedule for a product produced by a single-price monopolist. Price ($) 10 987654 Quantity demanded A. 9; 10; -1 B. 40; 45; 5 C. 36; 41; 5 D. 5; 4; 1 E. 15; 15; 0 4 567892 10 Using the graph on the right, suppose this single-price monopolist is initially selling 4 units at $10 each and then reduces the price of the product to $9. By making this change, the firm is giving up revenue of Its and gaining revenue of marginal revenue is therefore (All figures are dollars.) Price ($) 141 13- 12- 11- 10- 9- 6- 5- 4- 3- 2- 1- -N 4 5 6 7 8 9 10 11 12 13 14 15 16 Quantity Q Q

3

If a monopoly car[ sell 120 units of output for $11 each or 110 units of output for $12 each, we can safely conclude that for this monopoly, the profit-maximizing level of output is: a. greater than 120 units. b. less than 120 units. c. less than 110 units.. d. greater than 110 units.

27 $50 $45 $40 i of $35 $30 $25 ATC, Demand = P $20 $15 FLRATC = LRMC $10 MR $5 $0 20 40 60 80 100 120 Output (Q) The diagram above shows the Demand, MR, and cost curves for a monopolist in both the short-run and long-run. According to the information on the graph, the monopolist will maximize profit in the SHORT-run by choosing Output (Q) level and in the LONG- run by choosing Output (Q) level Select one: а. 25; 40 b. 40; 25 С. 25;B 80 d. 40; 80

In Fruitland, strawberries are sold in 4-litre baskets to customers on a "pick-your-own" basis. There are 2 farmers who sell strawberries: Mickey and Kit. There are no costs of supplying strawberries for sale for either farmer, so each has MC = ATC = 0. Profit therefore is simply TR. Market demand for strawberries is given in the accompanying table. If the market were served by a monopolist, the quantity traded would be 125 baskets, the price per 4-litre basket would be $7.50, and the profit for the firm would be $937.50. If Mickey and Kit decided to collude, each would have an individual quantity supplied of 62.5 baskets and each would have profits of $468.75. Suppose Mickey and Kit agree to split the monopoly outcome. Kit, acting in her own self-interest, realizes that she can cheat and supply 87.5 baskets; when she does, Kit's profits are $525.00 and Mickey's profits are $375.00. Mickey decides to retaliate and increases his supply to 87.5 baskets too; when he does, Kit's profits…

G.101.

The three graphs below illustrate the market for electricity. The distribution of electricity is a natural monopoly; therefore, to take advantage of lower production costs, it is efficient to have only one firm in the market. Unfortunately, if a monopoly were allowed to provide electricity, it would charge a higher price and provide a smaller amount of electricity than would be desirable. In other words, the unregulated monopoly would charge the monopoly's profit-maximizing price. To avoid this, the government will allow a single firm to provide electricity, but the government will regulate the price. Let’s compare possible regulatory solutions.