Utility Indifference Valuation for Non-smooth Payoffs with an Application to Power Derivatives

Utility Indifference Valuation for Non-smooth Payoffs with an Application to Power Derivatives We consider the problem of exponential utility indifference valuation under the simplified framework where traded and nontraded assets are uncorrelated but where the claim to be priced possibly depends on both. Traded asset prices follow a multivariate Black and Scholes model, while nontraded asset prices evolve as generalized Ornstein–Uhlenbeck processes. We provide a BSDE characterization of the utility indifference price (UIP) for a large class of non-smooth, possibly unbounded, payoffs depending simultaneously on both classes of assets. Focusing then on Vanilla claims and using the Gaussian structure of the model allows us to employ some BSDE techniques (in particular, a Malliavin-type representation theorem due to Ma and Zhang, Ann Appl Probab 12:1390–1418, 2002 ) to prove the regularity of Z and to characterize the UIP for possibly discontinuous Vanilla payoffs as a viscosity solution of a suitable PDE with continuous space derivatives. The optimal hedging strategy is also identified essentially as the delta hedging strategy corresponding to the UIP. Since there are no closed-form formulas in general, we also obtain asymptotic expansions for prices and hedging strategies when the risk aversion parameter is small. Finally, our results are applied to pricing and hedging power derivatives in various structural models for energy markets. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Mathematics and Optimization Springer Journals

Utility Indifference Valuation for Non-smooth Payoffs with an Application to Power Derivatives

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Publisher
Springer US
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Mathematics; Calculus of Variations and Optimal Control; Optimization; Systems Theory, Control; Theoretical, Mathematical and Computational Physics; Mathematical Methods in Physics; Numerical and Computational Physics
ISSN
0095-4616
eISSN
1432-0606
D.O.I.
10.1007/s00245-015-9306-4
Publisher site
See Article on Publisher Site

References

  • A structural risk-neutral model for pricing and hedging power derivatives
    Aïd, R; Campi, L; Langrené, N
  • Pricing and hedging of derivatives based on nontradable underlyings
    Ankirchner, S; Imkeller, P; Reis, G
  • A diffusion model for electricity prices
    Barlow, M
  • Electricity price modeling and asset valuation: a multi-fuel structural approach
    Carmona, R; Coulon, M; Schwarz, D

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