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Indifference pricing of mortality-linked securities using backward stochastic differential equations

Len Patrick Dominic Garces et al.

ASTIN Bulletin2026https://doi.org/10.1017/asb.2026.10088article
AJG 2ABDC A*
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0.50

Abstract

Consider a general mortality-linked security (MLS) with a bounded payoff contingent on the evolution of the underlying mortality rate and the performance of associated risky assets. The mortality rate and asset prices are assumed to jointly follow a multivariate Itô process, driven by both a multivariate Brownian motion and a Poisson point process. We follow the utility indifference approach to pricing this MLS under the physical measure. To this end, we employ backward stochastic differential equations (BSDEs) to characterize the optimal investment strategy and the value function for the involved optimization problems. We then solve the resulting nonlinear BSDEs with a non-Lipschitz generator. This methodology, which combines the utility indifference approach with BSDE techniques, provides numerical tractability through Monte Carlo simulations. Finally, we conduct comprehensive numerical studies on the valuation of several concrete MLSs, with a focus on the sensitivity analysis of the indifference prices against various key model parameters, including, in particular, the correlation between the underlying mortality rate and asset price.

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https://doi.org/https://doi.org/10.1017/asb.2026.10088

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@article{len2026,
  title        = {{Indifference pricing of mortality-linked securities using backward stochastic differential equations}},
  author       = {Len Patrick Dominic Garces et al.},
  journal      = {ASTIN Bulletin},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1017/asb.2026.10088},
}

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