From the WSJ:
American Airlines parent AMR Corp. AAMRQ +10.63% and US Airways Group Inc. LCC approved a merger to create the world's largest airline. The new entity—which will have a market value of about $11 billion—will take the American Airlines name and make its headquarters in Fort Worth, Texas. WSJ's Mike Spector has details on the American Airlines/US Airways merger that creates the world's largest airline, valued at $11 billion. Photo: Getty Images. Here, key questions and answers for fliers about the merger... Most importantly, American and US Airways overlap on only 12 of more than 900 routes, most between their hubs. Removing a big network carrier like American or US Airways from a route increases the fare by just 4% on average, according to Jan Brueckner, an economist at the University of California, Irvine.

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