Sound estimates of the cost of capital are crucial for evaluating investments and for corporate valuation. Current state-of-the-art methods of estimating the cost of equity capital, such as the CAPM or the Fama and French Three-Factor Model, have not only produced disappointing results empirically (Fama and French (1997, 2004)). They are also questionable in that they use average realized returns instead of measures of expected returns for which the underlying theories on asset pricing call for.
Recently, Claus and Thomas (2001), Gebhardt, Lee, and Swaminathan (2001) and Easton, Taylor, Shroff, and Sougiannis (2002) have proposed an alternative approach to estimating a firm’s expected cost of equity capital that does not rely on realized returns. Their idea uses a model of corporate valuation to generate a market-implied cost of equity capital. These studies define this implied cost of equity capital as the internal rate of return that equates the current stock price of a firm to the present value of the market’s expected future residual flows to common shareholders as approximated by observable financial analysts’ consensus forecasts.