For the underlying X, a floor F, a cap C, and payoff 1/min(max(X, F), C), derive a model independent static hedge in terms of European options on X with different strikes.
you know your pay-off function so you can taylor expand it and take expectation and get today's value. go to Peter Carr's web where he is talking about static hedging using options.
If you approximate the payoff with a piecewise linear function, then it seems easy, but off the top of my head I don't see how you can static hedging without a small error.Anyone else?
Carr's formula just do the thing immediately. It works since your payoff function is clearly regular enough (you just need its second distribution derivative to be a "signed measure" [not sure that it is correct in English, I mean the difference of to measures].
About the Carr formula, i wonder if it works for a pay-off written on more than one asset. I tried to write down a multi underlying version of this formula but it doesn't seem to be so evident... Is there anyone to know if the formula is writeable in this case ?