You run a regression of monthly returns of Mapco Inc, an oil and gas producing firm, on the S&P 500 index and come up with the following output for the period 1991 to 1995.
There are 29.5 million shares outstanding, and the current market price is $ 53. The firm has $ 753 million in debt outstanding. (The firm has a tax rate of 36%)
a. What would an investor in Mapco's stock require as a return, if the T.Bond rate is 6%?
b. What proportion of this firm's risk is diversifiable?
c. Assume now that Mapco has three divisions, of equal size (in market value terms). It plans to divest itself of one of the divisions for $ 20 million in cash and acquire another for $ 50 million (It will borrow $ 30 million to complete this acquisition). The division it is divesting is in a business line where the average unlevered beta is 0.20, and the division it is acquiring is in a business line where the average unlevered beta is 0.80. What will the beta of Mapco be after this acquisition?