Musiela, M.; Zariphopoulou, T. - In: Quantitative Finance 9 (2009) 2, pp. 161-170
A new dynamic criterion for measuring the performance of self-financing investment strategies is introduced. To this aim, a family of stochastic processes defined on [0, ∞) and indexed by a wealth argument is used. Optimality is associated with their martingale property along the optimal...