Bounded solutions to backward SDE's with jumps for utility optimization and indifference hedging

We prove results on bounded solutions to backward stochastic equations driven by random measures. Those bounded BSDE solutions are then applied to solve different stochastic optimization problems with exponential utility in models where the underlying filtration is noncontinuous. This includes results on portfolio optimization under an additional liability and on dynamic utility indifference valuation and partial hedging in incomplete financial markets which are exposed to risk from unpredictable events. In particular, we characterize the limiting behavior of the utility indifference hedging strategy and of the indifference value process for vanishing risk aversion.

[1]  Y. Kabanov,et al.  On the optimal portfolio for the exponential utility maximization: remarks to the six‐author paper , 2002 .

[2]  A. Shiryaev,et al.  Limit Theorems for Stochastic Processes , 1987 .

[3]  F. Delbaen,et al.  Exponential Hedging and Entropic Penalties , 2002 .

[4]  Dirk Becherer,et al.  Rational hedging and valuation of integrated risks under constant absolute risk aversion , 2003 .

[5]  Dirk Becherer Utility–indifference hedging and valuation via reaction–diffusion systems , 2004, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[6]  M. Kobylanski Backward stochastic differential equations and partial differential equations with quadratic growth , 2000 .

[7]  M. Schweizer,et al.  Classical solutions to reaction-diffusion systems for hedging problems with interacting Ito and point processes , 2005, math/0505208.

[8]  D. Kramkov,et al.  Asymptotic analysis of utility-based hedging strategies for small number of contingent claims , 2007 .

[9]  L. Foldes Valuation and martingale properties of shadow prices: An exposition , 2000 .

[10]  P. Imkeller,et al.  Utility maximization in incomplete markets , 2005, math/0508448.

[11]  Michael Mania,et al.  Dynamic exponential utility indifference valuation , 2005 .

[12]  Marco Frittelli,et al.  Introduction to a theory of value coherent with the no-arbitrage principle , 2000, Finance Stochastics.

[13]  N. Kazamaki Continuous Exponential Martingales and Bmo , 1994 .

[14]  M. Schweizer A guided tour through quadratic hedging approaches , 1999 .

[15]  Monique Jeanblanc,et al.  Hedging of Defaultable Claims , 2004 .

[16]  S. Peng,et al.  Backward Stochastic Differential Equations in Finance , 1997 .

[17]  Jia-An Yan,et al.  Semimartingale Theory and Stochastic Calculus , 1992 .

[18]  F. Benth,et al.  The density process of the minimal entropy martingale measure in a stochastic volatility model with jumps , 2005, Finance Stochastics.

[19]  Peter Grandits,et al.  On the minimal entropy martingale measure , 2002 .

[20]  T. Bielecki,et al.  INDIFFERENCE PRICING AND HEDGING OF DEFAULTABLE CLAIMS , 2004 .

[21]  Xunjing Li,et al.  Necessary Conditions for Optimal Control of Stochastic Systems with Random Jumps , 1994 .

[22]  Nicole El Karoui,et al.  Pricing Via Utility Maximization and Entropy , 2000 .

[23]  D. Lépingle,et al.  Sur l'intégrabilité uniforme des martingales exponentielles , 1978 .