Why We Shouldn’t Add a Size Premium to the CAPM Cost of Equity
A Critique of the Ibbotson Methodology In this paper, the author argues that the Size Premium in Excess of CAPM (and other similar size premium measures) should not be used by valuation practitioners because: a) it is inconsistent with the empirical evidence; b) it is constructed using a method that is inconsistent with how practitioners estimate their CAPM cost of equity; and c) it does not properly calcul ...
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