A stochastic linear-quadratic differential game with time-inconsistency

We consider a general stochastic linear-quadratic differential game with time-inconsistency. The time-inconsistency arises from the presence of quadratic terms of the expected state as well as state-dependent term in the objective functionals. We define an equilibrium strategy, which is different fr...

Full description

Bibliographic Details
Main Authors: Qinglong Zhou, Gaofeng Zong
Format: Article
Language:English
Published: AIMS Press 2022-05-01
Series:Electronic Research Archive
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/era.2022131?viewType=HTML
_version_ 1811197785363447808
author Qinglong Zhou
Gaofeng Zong
author_facet Qinglong Zhou
Gaofeng Zong
author_sort Qinglong Zhou
collection DOAJ
description We consider a general stochastic linear-quadratic differential game with time-inconsistency. The time-inconsistency arises from the presence of quadratic terms of the expected state as well as state-dependent term in the objective functionals. We define an equilibrium strategy, which is different from the classical one, and derive a sufficient condition for equilibrium strategies via a system of forward-backward stochastic differential equation. When the state is one-dimensional and the coefficients are all deterministic, we find an explicit equilibrium strategy. The uniqueness of such equilibrium strategy is also given.
first_indexed 2024-04-12T01:20:05Z
format Article
id doaj.art-bd0937f05b464da2b58478c7042be3aa
institution Directory Open Access Journal
issn 2688-1594
language English
last_indexed 2024-04-12T01:20:05Z
publishDate 2022-05-01
publisher AIMS Press
record_format Article
series Electronic Research Archive
spelling doaj.art-bd0937f05b464da2b58478c7042be3aa2022-12-22T03:53:50ZengAIMS PressElectronic Research Archive2688-15942022-05-013072550256710.3934/era.2022131A stochastic linear-quadratic differential game with time-inconsistencyQinglong Zhou0Gaofeng Zong11. Department of Mathematics, Zhejiang University, Hangzhou 310027, Zhejiang, China2. School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan 250014, ChinaWe consider a general stochastic linear-quadratic differential game with time-inconsistency. The time-inconsistency arises from the presence of quadratic terms of the expected state as well as state-dependent term in the objective functionals. We define an equilibrium strategy, which is different from the classical one, and derive a sufficient condition for equilibrium strategies via a system of forward-backward stochastic differential equation. When the state is one-dimensional and the coefficients are all deterministic, we find an explicit equilibrium strategy. The uniqueness of such equilibrium strategy is also given.https://www.aimspress.com/article/doi/10.3934/era.2022131?viewType=HTMLtime-inconsistencystochastic linear-quadratic differential gameequilibrium strategybsdeforward-backward stochastic differential equation
spellingShingle Qinglong Zhou
Gaofeng Zong
A stochastic linear-quadratic differential game with time-inconsistency
Electronic Research Archive
time-inconsistency
stochastic linear-quadratic differential game
equilibrium strategy
bsde
forward-backward stochastic differential equation
title A stochastic linear-quadratic differential game with time-inconsistency
title_full A stochastic linear-quadratic differential game with time-inconsistency
title_fullStr A stochastic linear-quadratic differential game with time-inconsistency
title_full_unstemmed A stochastic linear-quadratic differential game with time-inconsistency
title_short A stochastic linear-quadratic differential game with time-inconsistency
title_sort stochastic linear quadratic differential game with time inconsistency
topic time-inconsistency
stochastic linear-quadratic differential game
equilibrium strategy
bsde
forward-backward stochastic differential equation
url https://www.aimspress.com/article/doi/10.3934/era.2022131?viewType=HTML
work_keys_str_mv AT qinglongzhou astochasticlinearquadraticdifferentialgamewithtimeinconsistency
AT gaofengzong astochasticlinearquadraticdifferentialgamewithtimeinconsistency
AT qinglongzhou stochasticlinearquadraticdifferentialgamewithtimeinconsistency
AT gaofengzong stochasticlinearquadraticdifferentialgamewithtimeinconsistency