Many thanks sir, I still have following questions. 1. How accurate is using the yield on 10yr federal government bond as the required rate of return ? 2. In using CAMP model to calculate the required rate of return of a non-US economy, how do I determine the expected market return? Also how reliable is the beta of stock given on FT.COM Thanks for your anticipated response.
Not very: you’re using a risk-free rate as a proxy for a (potentially very) risky investment. At the very least, you’ll need to add a risk premium to your risk-free rate.
There are probably as many methods in practice as there are analysts in practice. A simple method would be to look at the average market return over a suitable historical period. Better might be to run a regression on historical market returns and extrapolate that to the future. Better still would be to examine economic fundamentals over an historical period, do a (multiple) regression of the market’s return compared to those fundamentals, project those fundamentals into the future, and compute the market return from the (extrapolated) regression model.
(Disclaimer: I’ve never done any of this in practice; perhaps someone else here has and can let you know the approach they use.)
I don’t know firsthand, but it’s probably reliable given the historical data they choose to use. Whether that will be representative of beta in the future is anybody’s guess.