A Mean Field Game Approach to Relative Investment-Consumption Games with Habit Formation

Fuente: arXiv
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Main Authors: Liang, Zongxia, Zhang, Keyu
Format: Preprint
Published: 2024
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author Liang, Zongxia
Zhang, Keyu
author_facet Liang, Zongxia
Zhang, Keyu
contents This paper studies an optimal investment-consumption problem for competitive agents with exponential or power utilities and a common finite time horizon. Each agent regards the average of habit formation and wealth from all peers as benchmarks to evaluate the performance of her decision. We formulate the n-agent game problems and the corresponding mean field game problems under the two utilities. One mean field equilibrium is derived in a closed form in each problem. In each problem with n agents, an approximate Nash equilibrium is then constructed using the obtained mean field equilibrium when n is sufficiently large. The explicit convergence order in each problem can also be obtained. In addition, we provide some numerical illustrations of our results.
format Preprint
id arxiv_https___arxiv_org_abs_2401_15659
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Mean Field Game Approach to Relative Investment-Consumption Games with Habit Formation
Liang, Zongxia
Zhang, Keyu
Optimization and Control
Mathematical Finance
This paper studies an optimal investment-consumption problem for competitive agents with exponential or power utilities and a common finite time horizon. Each agent regards the average of habit formation and wealth from all peers as benchmarks to evaluate the performance of her decision. We formulate the n-agent game problems and the corresponding mean field game problems under the two utilities. One mean field equilibrium is derived in a closed form in each problem. In each problem with n agents, an approximate Nash equilibrium is then constructed using the obtained mean field equilibrium when n is sufficiently large. The explicit convergence order in each problem can also be obtained. In addition, we provide some numerical illustrations of our results.
title A Mean Field Game Approach to Relative Investment-Consumption Games with Habit Formation
topic Optimization and Control
Mathematical Finance
url https://arxiv.org/abs/2401.15659