PRICE (Thousands of dollars per fire engine) 10 110 100 3. The components of marginal revenue Revenue Lost Demand 80 70 50 40 0 ° 2 3 4 5 6 7 8 10 QUANTITY (Fire engines) Revenue Gained Femi's HookNLadder is the only company selling fire engines in the fictional country of Alexandrina. Femi initially produced eight trucks, but then decided to increase production to nine trucks. The following graph gives the demand curve faced by Femi's HookNLadder. As the graph shows, in order to sell the additional fire truck, Femi must lower the price from $80,000 to $60,000 per truck. Notice that Femi gains revenue from the sale of the additional engine, but at the same time, he loses revenue from the initial eight engines because they are all sold at the lower price. Use the purple rectangle (diamond symbols) to shade the area representing the revenue lost from the initial eight engines by selling at $60,000 rather than $80,000. Then use the green rectangle (triangle symbols) to shade the area representing the revenue gained from selling an additional engine at $60,000. Femi increase production from 8 to 9 fire engines because the dominates in this scenario. True or False: If alternatively Femi's HookNLadder were a competitive firm and $80,000 were the market price for an engine, increasing production would not affect the price at which the company is able to sell engines. O True False

The accompanying graph shows the short-run demand and cost situation for a price searcher in a market with low barriers to entry. Price (dollars) 24 10 V ATC The firm will receive $ MR Quantity/time The firm will maximize its profit at a quantity of▼ units. D Options: 6, 8, 9, or 10 After choosing the profit maximizing quantity, the firm will charge a price of in revenue at the profit-maximizing quantity. The total cost of production for this profit-maximizing quantity is $ The maximum profit the firm can earn in this situation is How will the situation change over time? Options: 6,8 10, or 24 per unit for this output. O Profits will attract rival firms into the market until the profit-maximizing price falls to the level of per-unit cost. O The market will adjust until the price charged by this firm no longer exceeds marginal cost at the profit-maximizing quantity. O This market is already in long-run equilibrium, and will not change throughout time. O Losses will induce firms to leave…

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Price and cost (dollars per student) $150 120 88 76 72 ATC 40 - MC MR 24,000 30,000 36,000 Quantity of students enroiled 15,000 Your college decides to offer a psychology course as a MOOC that can be taken by students anywhere in the world, whether they are actually enrolled in your college or not. The demand and cost situation for the MOOC is shown in the figure. The faculty member who designed the course argues: "I think the course should be priced so that the maximum number of students enroll." Which price should this faculty member favor? O A. $0 В. $40 C. $88 D. $150