Consider the competitive market for rhodium. Assume that no matter how many firms operate in the industry, every firm is identical and faces the same marginal cost (MC), average total cost (ATC), and average variable cost (AVC) curves plotted in the following graph. COSTS (Dollars per pound) s per pound) 80 72 64 56 80 48 72 40 64 56 48 40 32 24 16 8 0 0 3 MC ATC Demand The following graph plots the market demand curve for rhodium. D AVC Use the orange points (square symbol) to plot the initial short-run industry supply curve when there are 10 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 20 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 30 firms. D D 6 9 12 15 18 21 QUANTITY (Thousands of pounds) 24 27 30 -0- Supply (10 firms) Supply (20 firms)

The following graph plots the marginal cost (MC) curve, average total cost (ATC) curve, and average variable cost (AVC) curve for a firm operating in the competitive market for snapback hats. COSTS (Dollars) 100 100 80 90 80 20 70 70 HD 50 40 30 20 0 11 D 10 O MC Price (Dollars per snapback) 15 15 20 25 55 70 85 201 ATC 0 D AVC O 50 60 70 80 QUANTITY (Thousands of snapbacks) 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. □ Quantity (Snapbacks) BO 100 ▼ On the following graph, use the orange points (square symbol) to…

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’s demand curve? Show it on a graph and label the axes showing P and Q

The following diagram shows the market demand for steel. Use the orange points (square symbol) to plot the short-run industry supply curve when there are 20 firms in the market. (Hint: You can disregard the portion of the supply curve that corresponds to prices where there is no output since this is the industry supply curve.) Next, use the purple points (diamond symbol) to plot the short-run industry supply curve when there are 40 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 60 firms. PRICE (Dollars per ton) 80 72 Supply (20 firms) 64 58 Demand 48 Supply (40 firms) 40 32 2 24 16 8 ° 0 120 240 360 480 600 720 840 960 1080 1200 QUANTITY OF OUTPUT (Thousands of tons) Supply (60 firms) ? If there were 60 firms in this market, the short-run equilibrium price of steel would be $ Therefore, in the long run, firms would Because you know that perfectly competitive firms earn be $ per ton. At that price, firms in this industry…