November 12th, 2004, 12:38 pm
The quarterly coupon is just an annuity, so just take that out.Depends what you mean by "compound monthly return". I usually see these things simply summing the capped and floored returns, in which case it is merely a cliquet that you can price with the formula in Haug's book and a calibrated forward vol surface.The PDE approach actually handles path dependant exotics very well if the underlying process is markovian and 1-2 dimensional. In a nutshell, the approach is to define a state variable that contains the return up to that point in time, then defining your end and boundary conditions on that variable. Check out the book by Tavella & Randall.Monte Carlo can give you hedging parameters if your answers are accurate enough (try Sobol sequences or other variance-reducing methods), by simply nudging your inputs and rerunning. Of course, if you use the analytic formula for a cliquet, you know what to do...