A measure approximation theorem for Wasserstein-robust expected values

Gusti van Zyl

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arXiv · 1912.12119

A measure approximation theorem for Wasserstein-robust expected values

Gusti van Zyl

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Abstract

We consider the problem of finding the infimum, over probability measures being in a ball defined by Wasserstein distance, of the expected value of a bounded Lipschitz random variable on $\mathbf{R}^d$. We show that if the $\sigma-$algebra is approximated in by a sequence of $\sigma$-algebras in a certain natural sense, then the solutions of the induced approximated minimization problems converge to that of the initial minimization problem.

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Gusti van Zyl. 2019-12-27. A measure approximation theorem for Wasserstein-robust expected values. https://arxiv.org/abs/1912.12119

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