Suppose the market for apples is perfectly competitive. The short-run average total cost and marginal cost of growing apples for an individual grower are illustrated in the figure to the right. 40- 36 Assume that the market price for apples is $26.00 per box. What is the profit-maximizing quantity for apple growers to produce? 75 boxes. (Enter your response as an integer.) MC 32 At this level of output, profit will be S 900. (Enter your response rounded to the nearest dollar.) 24- Apple growers will earn positive economic profit in the short run at any market price above $ place.) per box. (Enter your response rounded to one decimal ATC 16- 12- 40 50 Bo Output (boxes of apples per day) 30 70 a0 90 100 Price (dollars per box)

Consider the business whose Total Cost and Total Revenue for various quantities of a particular product are shown in the table below.   Quantity Total Cost Total Revenue 0 100 0 1 250 500 2 350 950 3 500 1350 4 725 1700 5 1000 2000 6 1400 2250   Use the Profit-Maximizing Rule to explain the quantity that this business should produce to maximize its profits. Answer must both state the number to produce and an explanation of how you used the profit-maximizing rule to arrive at that number.

In the short run, if a firm is having economic losses, but the profit is greater than the average variable cost, then the firm should ____________.

50 MC ATC 40 30 MR 10 10 20 30 40 Quantity (per day) The figure above shows a perfectly competitive firm. The firm is operating; that is, the firm has not shut down. a) What is the output level should the firm produce to maximize the profit? b) What is the price does the firm charge at this output level? Price and costs (dollars) 20

100 90 90 00 80 COSTS (Dollars) 70 70 00 60 50 40 30 20 10 ATC AVC MC 0 0 5 10 15 20 25 30 QUANTITY (Thousands of snapbacks) 35 35 40 45 50 For every price level given in the following table, use the graph to determine the profit-maximizing quantity of snapbacks for the firm. Further, select whether the firm will choose to produce, shut down, or be indifferent between the two in the short run. (Assume that when price exactly equals average variable cost, the firm is indifferent between producing zero snapbacks and the profit-maximizing quantity of snapbacks.) Lastly, determine whether the firm will earn a profit, incur a loss, or break even at each price. Price (Dollars per snapback) 10 20 32 40 50 60 Quantity (Snapbacks) Produce or Shut Down? Profit or Loss?

At what output rate does the firm maximize profit or minimize loss?

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Suppose the market for beans is perfectly competitive. The average total cost and marginal cost of growing beans in the long run for an individual farmer are illustrated in the graph to the right. According to the graph, the long run equilibrium price for beans is $ per box. (Enter a numeric response using a real number rounded to two decimal places.) C Price and cost (dollars per box) 10- 9- 00 N 1 0 10 MC 20 30 40 50 60 70 80 Quantity of beans (boxes per week) ATC 90 100 N

Consider the competitive market for steel. Assume that, regardless of how many firms are in the industry, every firm in the industry is identical and faces the marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves shown on the following graph. V AVC COSTS (Dollars per ton) 100 882 889 80 20 0 MC 5 25 30 35 QUANTITY (Thousands of tons) 15 20 10 45 40 50 The following diagram shows the market demand for steel.

Pierce Manufacturing determines that the daily revenue, in dollars, from the sale of x lawn chairs is R(x)=0.005x³ +0.02x² +0.5x Currently, Pierce sells 90 lawn chairs daily a) What is the current daily revenue? b) How much would revenue increase if 95 lawn chairs were sold each day? c) What is the marginal revenue when 90 lawn chairs are sold daily? d) Use the answer from part (c) to estimate R(91), R(92), and R(93) a) The current revenue is $ b) The revenue would increase by $ (Round to the nearest cent.) c) The marginal revenue is $ when 90 lawn chairs are sold daily. d) R(91) $ R(92) $ R(93) $