In 2006, the major airline carriers, with the principal exception of Southwest Airlines (LUV), continued to be in dire financial condition following the attack on the World Trade Center in 2001.
a. Given the following data for Southwest Airlines and three other airlines (for August 1, 2014), estimate the unlevered equity beta for Southwest Airlines. Use the procedure described in Table.

b. Based on your estimate of Southwest Airlines€™ unlevered equity beta, reliever the beta to get an estimate of the firm€™s levered beta.

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Levered Equity Beta 1.01 .96 .73 .97 Assumed Debt Beta 0.30 040 0.30 0.20 Debt/E quity Capitalization 26 Company Name American Airlines (AAL) Delta Airlines (DAL) Jet Blue (JBLU) Southwest Airlines (LUV) .58 .06