Stochastic cooperative games of risk averse players and application to multiple newsvendors problem

Fuente: arXiv
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Main Authors: Ryzák, David, Černý, Martin
Format: Preprint
Published: 2024
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author Ryzák, David
Černý, Martin
author_facet Ryzák, David
Černý, Martin
contents This paper studies the stochastic setting in cooperative games and suggests a solution concept based on second order stochastic dominance (SSD), which is often applied to robustly model risk averse behaviour of players in different economic and game theoretic models as it enables to model not specified levels of risk aversion among players. The main result of the paper connects this solution concept, \emph{SSD-core}, in case of uniform distribution of the game to cores of two deterministic cooperative games. Interestingly, balancedness of both of these games and convexity of one of these implies non-emptiness of the SSD-core. The opposite implication does not, in general, hold and leads to questions about intersections of cores of two games and their relations. Finally, we present an application of the SSD-core to the multiple newsvendors problem, where we provide a characterization of risk averse behaviour of players with an interpretation in terms of the model.
format Preprint
id arxiv_https___arxiv_org_abs_2410_19002
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Stochastic cooperative games of risk averse players and application to multiple newsvendors problem
Ryzák, David
Černý, Martin
Theoretical Economics
This paper studies the stochastic setting in cooperative games and suggests a solution concept based on second order stochastic dominance (SSD), which is often applied to robustly model risk averse behaviour of players in different economic and game theoretic models as it enables to model not specified levels of risk aversion among players. The main result of the paper connects this solution concept, \emph{SSD-core}, in case of uniform distribution of the game to cores of two deterministic cooperative games. Interestingly, balancedness of both of these games and convexity of one of these implies non-emptiness of the SSD-core. The opposite implication does not, in general, hold and leads to questions about intersections of cores of two games and their relations. Finally, we present an application of the SSD-core to the multiple newsvendors problem, where we provide a characterization of risk averse behaviour of players with an interpretation in terms of the model.
title Stochastic cooperative games of risk averse players and application to multiple newsvendors problem
topic Theoretical Economics
url https://arxiv.org/abs/2410.19002