The Text Identifies Three Methods for Estimating the Cost of Common

The text identifies three methods for estimating the cost of common stock from reinvested earnings (not newly issued stock): the CAPM method, the DCF method, and the bond-yield-plus-risk-premium method.Since we cannot be sure that the estimate obtained with any of these methods is correct, it is often appropriate to use all three methods, then consider all three estimates, and end up using a judgmental estimate when calculating the WACC.