{"title":"Dynamic portfolio choice with stochastic liquidity risk: A perturbation approach","authors":"Jayden Zian Wang , Zheqi Fan , Yifan Ye","doi":"10.1016/j.frl.2026.109847","DOIUrl":null,"url":null,"abstract":"<div><div>We study a dynamic portfolio choice problem under the liquidity-adjusted asset price specification proposed by Feng et al. (2014). Given the intractability of an explicit solution to this problem, we develop a perturbation method to derive a second-order approximate solution, which captures not only the frictionless benchmark and linear liquidity effects, but also nonlinear liquidity corrections Finally, a series of numerical illustrations is provided to demonstrate the sensitivity of the approximate indirect utility function and optimal portfolio strategy to key model parameters.</div></div>","PeriodicalId":12167,"journal":{"name":"Finance Research Letters","volume":"99 ","pages":"Article 109847"},"PeriodicalIF":6.9000,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Finance Research Letters","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1544612326003776","RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BUSINESS, FINANCE","Score":null,"Total":0}
引用次数: 0
Abstract
We study a dynamic portfolio choice problem under the liquidity-adjusted asset price specification proposed by Feng et al. (2014). Given the intractability of an explicit solution to this problem, we develop a perturbation method to derive a second-order approximate solution, which captures not only the frictionless benchmark and linear liquidity effects, but also nonlinear liquidity corrections Finally, a series of numerical illustrations is provided to demonstrate the sensitivity of the approximate indirect utility function and optimal portfolio strategy to key model parameters.
期刊介绍:
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