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Dynamic Pareto Optima in Multi-Period Pure-Exchange Economies
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Dynamic Pareto Optima in Multi-Period Pure-Exchange Economies

Brandon Tam, Mario Ghossoub and Silvana M Pesenti
ArXiv.org
arXiv
03/19/2026
DOI: 10.48550/arxiv.2603.19414
url
https://doi.org/10.48550/arxiv.2603.19414View
Preprint (Author's original) This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

We study a problem of optimal allocation in a discrete-time multi-period pure-exchange economy, where agents have preferences over stochastic endowment processes that are represented by strongly time-consistent dynamic risk measures. We introduce the notion of dynamic Pareto-optimal allocation processes and show that such processes can be constructed recursively starting with the allocation at the terminal time. We further derive a comonotone improvement theorem for allocation processes, and we provide a recursive approach to constructing comonotone dynamic Pareto optima when the agents' preferences are coherent and satisfy a property that we call equidistribution-preserving. In the special case where each agent's dynamic risk measure is of the distortion type, we provide a closed-form characterization of comonotone dynamic Pareto optima. We illustrate our results in a two-period setting.
Quantitative Finance - Risk Management

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