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was coming back to this today, just want to make sure i got it...
R = a +B(Rm) + e
B(Rm) would be beta x the expected return on the market...this is NOT an equity risk premium (i.e. we don't subtract the RF rate as we do in the CAPM).
a = the component of the security's return that is driven by firm-specific risk.
E is just an error term...
is that about right? |
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