basic ideas: put a dynamic of credit spread, calibrate to the market data, and monte carl all at the payoff, you will get your price !One question: which model to choose ? It depends on the market !:music
Wondering about the hedging of a RAN. If the RAN is a series of barriers, you hedge it using a combination of puts @ x1 and puts @ x2 (essentially a bull spread) - My question is what kind of puts do you sell - it's not a very liquid market