LUse the orange points (square symbol) to plot the initial 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 30 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 40 firms. 100 90 Supply (20 firms) 80 70 Supply (30 firms) 60 40 Supply (40 firms) Demand 30 20 10 125 250 375 500 625 750 875 1000 1125 1250 QUANTITY (Thousands of pounds) If there were 20 firms in this market, the short-run equilibrium price of titanium would be S per pound. At that price, firms in this industry would Therefore, in the long run, firms would the titanium market. Because you know that competitive firms earn economic profit in the long run, you know the long-run equilibrium price must be per pound. From the graph, you can see that this means there will be firms operating in the titanium industry in long-run equilibrium. True or False: Assuming implicit costs are positive, each of the firms operating in this industry in the long run earns positive accounting profit. O True O False PRICE (Dollars per pound) 7. Short-run supply and long-run equilibrium Consider the competitive market for titanium. 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. 100 90 80 70 60 50 40 ATC 30 20 AVC 10 10 15 20 25 30 35 40 45 50 QUANTITY (Thousands of pounds) The following diagram shows the market demand for titanium. Use the orange points (square symbol) to plot the initial 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 30 firms. Finally, use the green points (triangle symbol) to plot the short-run industry supply curve when there are 40 firms. (purod jad suRJog) SISOD