Yor, Marc; Madan, Dilip B.; Carr, Peter; Geman, Hélyette - Université Paris-Dauphine - 2004
We define the class of local Lévy processes. These are Lévy processes time changed by an inhomogeneous local speed function. The local speed function is a deterministic function of time and the level of the process itself. We show how to reverse engineer the local speed function from traded...