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Forward-backward SDE games and stochastic control under model uncertainty

Bernt Oksendal 1 Agnès Sulem 2
2 MATHFI - Financial mathematics
Inria Paris-Rocquencourt, ENPC - École des Ponts ParisTech, UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12
Abstract : We study optimal stochastic control problems with jumps under model uncertainty. We rewrite such problems as (zero-sum) stochastic differential games of forward-backward stochastic differential equations. We prove general stochastic maximum principles for such games, both in the zero-sum case (finding conditions for saddle points) and for the non-zero sum games (finding conditions for Nash equilibria). We then apply these results to study optimal portfolio and consumption problems under model uncertainty. We combine the optimality conditions given by the stochastic maximum principles with Malliavin calculus to obtain a set of equations which determine the optimal strategies.
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https://hal.inria.fr/inria-00635520
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Submitted on : Tuesday, October 25, 2011 - 2:44:25 PM
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Bernt Oksendal, Agnès Sulem. Forward-backward SDE games and stochastic control under model uncertainty. [Research Report] RR-7776, INRIA. 2011, pp.35. ⟨inria-00635520⟩

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