The accompanying diagram shows demand and long-run cost conditions in a price-searcher market with high barriers to entry. Place the black point (plus symbol) on the graph to indicate the profit-maximizing price and quantity. Then, use the gray rectangle (star symbols) to shade the area corresponding to the profit or losses in this industry. PRICE 6 5 2 1 0 MC 0 1 3 LRATO MR 4 QUANTITY 5 6 7 D 8 Monopoly Outcome Profit or Loss Which of the following would best describe why an industry is likely to be monopolized? O The marginal cost curve intersects the demand curve at the profit-maximizing quantity,

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8. Natural monopoly analysis The following graph gives the demand (D) curve for 5G LTE services in the fictional town of Streamship Springs. The graph also shows the marginal revenue (MR) curve, the marginal cost (MC) curve, and the average total cost (ATC) curve for the local 5G LTE company, a natural monopolist. On the following graph, use the black point (plus symbol) to indicate the profit-maximizing price and quantity for this natural monopolist. PRICE (Dollars per gigabyte of data) 20 18 16 14 12 10 80 6 4 2 0 0 1 MR 2 3 4 5 6 7 QUANTITY (Gigabytes of data) 8 ATC MC 9 10 D Monopoly Outcome Which of the following statements are true about this natural monopoly? Check all that apply.

Question 5 The following figure describes the market demand curve of a monopoly market: 10 Price, cost 9 8 7 6 3 2 1 a. b. C. d. 5 10 15 20 25 30 35 D a). 45 50 55 60 65 70 75 80 85 quantity Draw the marginal revenue (MR) curve for the monopoly given the above market demand curve. If the monopoly firm can produce any output level with the extra cost $3 per unit, how would the marginal cost (MC) curve be? List the mathematical equation and draw the MC curve on the same figure of question The fixed cost for the monopoly company is $25. Find the optimal output level and the related profit/loss for it. There are two proposals concerning the market efficiency: Plan A: regulate the market price at $4. Plan B: allow and help the monopoly enforce the perfect price discrimination. If you represent consumers to vote for one plan, which one would you choose? Explain with proper calculation (Hint: consumers only care about their welfare).

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P $9 $7 55 B 300 rounds 740 rounds. 900 rounds MC ATC 1.200 rounds MRWD DWD $10 $9 0 100 200 350 Q 0 100 120 200 Q The graphs represent the demand for use of a local golf course for which there is no significant competition. It has a local monopoly.) P denotes the price of a round of goif and Q is the quantity of rounds sold each day. If the left graph represents the demand during weekdays and the right graph the weekend demand then over the course of a full seven-day week, this price discriminating profit-maximizing golf course should sel a total of $4 MRWE MC ATC Pwe

Use the following information to answer questions 1 through 4: The table below shows data for the production of Apples for an individual firm operating as a monopoly. 0 10 20 30 40 50 60 70 80 Quantity of Apples Price Total Costs 600 3000 550 3750 500 4750 450 6000 400 8500 350 12500 300 20000 250 32000 200 43500 Monopoly Problem Set¹ 1. Given this data, complete the table: Profit Quantity of Apple Price 0 10 20 30 40 50 Total TC Revenue (TR) Marginal Revenue (MR) Marginal Costs (MC) 2. At what quantity are marginal revenues equal to marginal costs?

3. Natural monopoly analysis The following graph gives the demand (D) curve for 5G LTE services in the fictional town of Streamship Springs. The graph also shows the marginal revenue (MR) curve, the marginal cost (MC) curve, and the average total cost (ATC) curve for the local 5G LTE company, a natural monopolist. On the following graph, use the black point (plus symbol) to indicate the profit-maximizing price and quantity for this natural monopolist. 18 16 2006 ± 14 12 1 PRICE (Dollars per gigabyte of data) ° 00 2 Monopoly Outcome ATC MC D MR 0 + + 0 1 2 3 4 5 6 7 8 9 10 QUANTITY (Gigabytes of data)