Abstract
We consider backward stochastic differential equations (BSDEs) with a particular quadratic generator and study the behaviour of their solutions when the probability measure is changed, the filtration is shrunk, or the underlying probability space is transformed. Our main results are upper bounds for the solutions of the original BSDEs in terms of solutions to other BSDEs which are easier to solve. We illustrate our results by applying them to exponential utility indifference valuation in a multidimensional Itô process setting.
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Frei, C., Malamud, S. & Schweizer, M. Convexity bounds for BSDE solutions, with applications to indifference valuation. Probab. Theory Relat. Fields 150, 219–255 (2011). https://doi.org/10.1007/s00440-010-0273-z
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DOI: https://doi.org/10.1007/s00440-010-0273-z
Keywords
- Quadratic BSDE
- Convexity bounds
- Symmetrisation
- Indifference valuation
- Exponential utility
Mathematics Subject Classification (2000)
- 60H10
- 91B28
- 60G35