Optimal Savings with Preference for Wealth

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Hauptverfasser: Ma, Qingyin, Toda, Alexis Akira
Format: Preprint
Veröffentlicht: 2025
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author Ma, Qingyin
Toda, Alexis Akira
author_facet Ma, Qingyin
Toda, Alexis Akira
contents The consumption function maps current wealth and the exogenous state to current consumption. We prove the existence and uniqueness of a consumption function when the agent has a preference for wealth. When the period utility functions are restricted to power functions, we prove that the consumption function is asymptotically linear as wealth tends to infinity and provide a complete characterization of the asymptotic slopes. When the risk aversion with respect to wealth is less than that for consumption, the asymptotic slope is zero regardless of other model parameters, implying wealthy households save a large fraction of their income, consistent with empirical evidence.
format Preprint
id arxiv_https___arxiv_org_abs_2509_12195
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimal Savings with Preference for Wealth
Ma, Qingyin
Toda, Alexis Akira
Theoretical Economics
Optimization and Control
The consumption function maps current wealth and the exogenous state to current consumption. We prove the existence and uniqueness of a consumption function when the agent has a preference for wealth. When the period utility functions are restricted to power functions, we prove that the consumption function is asymptotically linear as wealth tends to infinity and provide a complete characterization of the asymptotic slopes. When the risk aversion with respect to wealth is less than that for consumption, the asymptotic slope is zero regardless of other model parameters, implying wealthy households save a large fraction of their income, consistent with empirical evidence.
title Optimal Savings with Preference for Wealth
topic Theoretical Economics
Optimization and Control
url https://arxiv.org/abs/2509.12195