Southwest Airlines Co shares could be poised to climb sharply after a series of setbacks hit the stock harder than that of other major airlines this year, Barron’s reports. Fewer people are now booking on the Dallas-based carrier, a slowdown Southwest said stemmed mainly from its own reduction in advertising after the tragedy, the first U.S. airline death since 2009, Barron’s said. Rising fuel prices and planned expansion by some rivals that could mean more competition have stoked fears about the sector, helping sending Southwest stock down 24 percent this year, the paper reported. […]