1. Look at the companies listed in Table 8.4. Calculate monthly rates of return for two successive...

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1. Look at the companies listed in Table 8.4. Calculate monthly rates of return for two successive five-year periods. Calculate betas for each subperiod using the Excel SLOPE function.

How stable was each company’s beta? Suppose that you had used these betas to estimate expected rates of return from the CAPM. Would your estimates have changed significantly from period to period?

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Principles Of Corporate Finance

ISBN: 9781264080946

14th Edition

Authors: Richard Brealey, Stewart Myers, Franklin Allen, Alex Edmans

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