Quadratic BSDEs driven by a continuous martingale and application to utility maximization problem

Marie-Amelie Morlais

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Abstract: In this paper, we study a class of quadratic Backward Stochastic Differential Equations (BSDEs) which arises naturally when studying the problem of utility maximization with portfolio constraints. We first establish existence and uniqueness results for such BSDEs and then, we give an application to the utility maximization problem. Three cases of utility functions will be discussed: the exponential, power and logarithmic ones.

Date: 2006-10, Revised 2008-03
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