The text identifies three methods for estimating the cost of common stock from reinvested earnings (not newly issued stock): CAPM method, DCF method, and 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, such as _______________ rate of them.