I\" CENGAGE | MINDTAP Homework: Chapter 09 Attempts 1 .7 I I Keep the Highest 1.7 / 3 5. Short-run supply and long-run equilibrium Consider the perfectly 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 30 COSTS (Dollars per pound) 20 10 10 20 30 40 50 60 70 80 90 100 QUANTITY (Thousands of pounds) 0 Q Search this course 0X "I CENGAGE MINDTAP Homework: Chapter 09 The following diagram shows the market demand for titanium. Use the orange points (square symbol) to plot the initial shortrun industry supply curve when there are 10 rms 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 shortrun industry supply curve when there are 15 rms. Final/y, use the green points (triangle symbol) to plot the shortrun industry supply curve when there are 20 rms. PRICE (Dollars per pound) 100 90 80 70 60 50 40 30 20 10 O 125 Demand 250 375 500 625 750 875 1000 QUANTITY (Thousands of pounds) 1125 1250 Supply (10 rms) + Supply (15 rms) A Supply (20 rms) /'\\ K25 Q Search this course 0X CENGAGE |MINDTAP Q Search this course Homework: Chapter 09 X 100 90 Supply (10 firms) 70 50 Supply (15 firms) 50 A PRICE (Dollars per pound) 40 Supply (20 firms) Demand 30 20 10 0 125 250 375 500 625 750 875 1000 1125 1250 QUANTITY (Thousands of pounds) If there were 20 firms in this market, the short-run equilibrium price of titanium would be $ per pound. At that price, firms in this industry would . Therefore, in the long run, firms would the titanium market. Because you know that perfectly 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. Grade It Now Save & Continue Continue without saving