Existence of bounded solutions to multiplicative Poisson equations under mixing property

Fuente: arXiv
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Autores principales: Pitera, Marcin, Stettner, Łukasz
Formato: Preprint
Publicado: 2023
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author Pitera, Marcin
Stettner, Łukasz
author_facet Pitera, Marcin
Stettner, Łukasz
contents In this paper we study the problem of Multiplicative Poisson Equation (MPE) bounded solution existence in the generic discrete-time setting. Assuming mixing and boundedness of the risk-reward function, we investigate what conditions should be imposed on the underlying non-controlled probability kernel or the reward function in order for the MPE bounded solution to always exists. In particular, we consolidate span-norm framework based results and derive an explicit sharp bound that needs to be imposed on the cost function to guarantee the bounded solution existence under mixing. Also, we study the properties which the probability kernel must satisfy to ensure existence of bounded MPE for any generic risk-reward function and characterise process behaviour in the complement of the invariant measure support. Finally, we present numerous examples and stochastic-dominance based arguments that help to better understand the intricacies that emerge when the ergodic risk-neutral mean operator is replaced with ergodic risk-sensitive entropy.
format Preprint
id arxiv_https___arxiv_org_abs_2309_02829
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Existence of bounded solutions to multiplicative Poisson equations under mixing property
Pitera, Marcin
Stettner, Łukasz
Probability
90C40, 93E20, 60J35, 93C55
In this paper we study the problem of Multiplicative Poisson Equation (MPE) bounded solution existence in the generic discrete-time setting. Assuming mixing and boundedness of the risk-reward function, we investigate what conditions should be imposed on the underlying non-controlled probability kernel or the reward function in order for the MPE bounded solution to always exists. In particular, we consolidate span-norm framework based results and derive an explicit sharp bound that needs to be imposed on the cost function to guarantee the bounded solution existence under mixing. Also, we study the properties which the probability kernel must satisfy to ensure existence of bounded MPE for any generic risk-reward function and characterise process behaviour in the complement of the invariant measure support. Finally, we present numerous examples and stochastic-dominance based arguments that help to better understand the intricacies that emerge when the ergodic risk-neutral mean operator is replaced with ergodic risk-sensitive entropy.
title Existence of bounded solutions to multiplicative Poisson equations under mixing property
topic Probability
90C40, 93E20, 60J35, 93C55
url https://arxiv.org/abs/2309.02829