【单选题】The long-run average total cost of producing 100 units of output is $4, while the long-run average cost of producing 110 units of output is $4. These numbers suggest that the firm producing this outpu...
【单选题】Suppose McDonald's puts up five new stores in San Francisco using exactly the same floor plan, capital equipment and number of workers, then the long run average cost curve of McDonald's would be ____...