Optimal payoff under Bregman-Wasserstein divergence constraints

Silvana M. Pesenti, Steven Vanduffel (), Yang Yang and Jing Yao

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Abstract: We study optimal payoff choice for an expected utility maximizer under the constraint that their payoff is not allowed to deviate ``too much'' from a given benchmark. We solve this problem when the deviation is assessed via a Bregman-Wasserstein (BW) divergence, generated by a convex function $\phi$. Unlike the Wasserstein distance (i.e., when $\phi(x)=x^2$). The inherent asymmetry of the BW divergence makes it possible to penalize positive deviations different than negative ones. As a main contribution, we provide the optimal payoff in this setting. Numerical examples illustrate that the choice of $\phi$ allow to better align the payoff choice with the objectives of investors.

Date: 2024-11
New Economics Papers: this item is included in nep-upt
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