Describe three strategies for expanding capacity. What are the advantages and disadvantages of incremental versus one-step expansion? Review the case study Southwest Airlines 2011 (2011). Describe Southwest Airlines' strategy and process, and then respond to the following questions in view of your knowledge about expanding capacity: Is the United States airline industry attractive? Why is Southwest successful? How easy would it be to imitate this strategy? Is the strategy sustainable? Should Southwest become an international airline?