For each price in the following table, calculate the firm's optimal quantity of units to produce, and determine the profit or loss if it produces at that quantity, using the data from the graph to identify its total variable cost. Assume that if the firm is indifferent between producing and shutting down, it will produce. (Hint: You can select the purple points [diamond symbols] on the graph to see precise information on average variable cost.) Price Quantity Total Revenue Fixed Cost Variable Cost Profit (Dollars per shirt) (Shirts) (Dollars) (Dollars) (Dollars) (Dollars) 12.50 7,500 93,750 135,000 27.50 10,000 275,000 135,000 45.00 12,000 540,000 135,000 If the firm shuts down, it must incur its fixed costs (FC) in the short run. In this case, the firm's fixed cost is $135,000 per day. In other words, if it shuts down, the firm would suffer losses of $135,000 per day until its fixed costs end (such as the expiration of a building lease). This firm's shutdown price-that is, the price below which it is optimal for the firm to shut down-is per shirt.

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.

The following graph illustrates the demand and marginal revenue curve (D=MR) of a perfectly competitive firm. Suppose that when the firm produces 70 units, its average variable cost equals $30 per unit and its average total cost equals $55 per unit. Use the green rectangle (triangle symbols) to plot the total cost of producing 70 units. Next, use the grey rectangle (star symbols) to plot the total variable cost of producing 70 units. Then, use the tan rectangle (dash symbols) to plot the total revenue at 70 units. Finally, use the purple rectangle (diamond symbols) to plot the profit or loss at 70 units. PRICE AND COST (Dollars) 100 90 80 70 60 50 40 30 20 10 0 O 10 20 30 40 50 60 QUANTITY (Units) +ATC + AVC 70 D=MR 80 90 100 Total Cost Total Variable Cost Total Revenue Profit or Loss ?

For the pizza seller whose marginal, average variable, and average total cost curves are shown in the graph below, what is the profit-maximizing level of output and how much profit will this producer earn if the price of pizza is $1.50 per slice?Instructions: In the graph below, label all three curves by clicking on the dropdown to select the appropriate label.       Instructions: Enter your response as a whole number. If you are entering a negative number, be sure to include a negative sign (−).   When the price is $1.50 per slice, the profit-maximizing level of output is slices per day.   Instructions: Enter your response rounded to the nearest penny (two decimal places).   At the profit-maximizing level of output, the producer's profit is: $ per day.

Using the Diagram above, answer the following questions: b). Suppose this firm produces 15 units of output. What is the variable cost of producing this level of output? What is the firm’s AVC of production when it produces 15 units of output. Explain your answer fully.

In competitive markets, there are many small firms with each firm unable to influence the market price. Suppose company ABX  operates in the wheat market. The company produces and markets wheats at a Price = $20 per container. The firm’s total costs are given as: TC = 50 +2Q + 3Q2   What is the firm Fixed Cost? Why? Also, use a graph to support your answer

What is the firm’s total variable cost at this level of output?   $    e. What is the firm’s fixed cost at this level of output?   $    f. What is the firm’s profit if it produces this level of output? Instructions: If the firm is taking a loss, enter this as negative (−) profits.   $    g. What is the firm’s profit if it shuts down? Instructions: If the firm is taking a loss, enter this as negative (−) profits.   $    h. In the short run, should this firm continue to operate or shut down?

Consider the market for ice cream. Suppose that this market is perfectly competitive. The cost structure of the typical ice cream producer is as follows. Average total cost is equal to 50 1 1 ATC(Q) +÷Q, average variable cost is equal to AVC(Q) =;Q, and marginal cost is equal to 2 MC(Q) = Q. Now, suppose that a new scientific study comes out that shows that soil pollution from rock salt (a key input for making ice cream) is extremely hazardous to human health. In response, the government decides to impose harsh re-zoning restrictions on any land once used for making ice cream. This reduces the market rent for land used to make ice cream, which in turn lowers the opportunity cost of operating an ice cream factory. This reduction in the opportunity cost of capital causes the total fixed cost of ice cream production to fall to 32, but there is no change to variable cost. Give formulas for the typical ice cream producer's new average total cost curve ATC(Q) and marginal cost curve MC(Q).

Am. 106.

Suppose that the market for microwave ovens is a competitive market. The following graph shows the daily cost curves of a firm operating in this market. PRICE (Dollars per oven) 100 90 80 70 40 30 20 10 0 0 5 0 MC ATC AVC 10 15 20 25 30 35 QUANTITY (Thousands of ovens) 40 45 50 (?)