Portfolio optimization with pw-robustness

This paper investigates a portfolio optimization problem under uncertainty on the stock returns, where the manager seeks to achieve an appropriate trade-off between the expected portfolio return and the risk of loss. The uncertainty set consists of a finite set of scenarios occurring with equal prob...

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Autores principales: Virginie Gabrel, Cécile Murat, aurélie Thiele
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Lenguaje:EN
Publicado: Elsevier 2018
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Acceso en línea:https://doaj.org/article/aef65b8389be4b87ab45892fec26a22c
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spelling oai:doaj.org-article:aef65b8389be4b87ab45892fec26a22c2021-12-02T05:01:08ZPortfolio optimization with pw-robustness2192-440610.1007/s13675-018-0096-8https://doaj.org/article/aef65b8389be4b87ab45892fec26a22c2018-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2192440621001039https://doaj.org/toc/2192-4406This paper investigates a portfolio optimization problem under uncertainty on the stock returns, where the manager seeks to achieve an appropriate trade-off between the expected portfolio return and the risk of loss. The uncertainty set consists of a finite set of scenarios occurring with equal probability. We introduce a new robustness criterion, called pw-robustness, which seeks to maximize the portfolio return in a proportion p of scenarios and guarantees a minimum return over all scenarios. We model this optimization problem as a mixed-integer programming problem. Through extensive numerical experiments, we identify the instances that can be solved to optimality in an acceptable time using off-the-shelf software. For the instances that cannot be solved to optimality within the time frame, we propose and test a heuristic that exhibits excellent practical performance in terms of computation time and solution quality for the problems we consider. This new criterion and our heuristic methods therefore exhibit great promise to tackle robustness problems when the uncertainty set consists of a large number of scenarios.Virginie GabrelCécile Murataurélie ThieleElsevierarticle90C90Applied mathematics. Quantitative methodsT57-57.97Electronic computers. Computer scienceQA75.5-76.95ENEURO Journal on Computational Optimization, Vol 6, Iss 3, Pp 267-290 (2018)
institution DOAJ
collection DOAJ
language EN
topic 90C90
Applied mathematics. Quantitative methods
T57-57.97
Electronic computers. Computer science
QA75.5-76.95
spellingShingle 90C90
Applied mathematics. Quantitative methods
T57-57.97
Electronic computers. Computer science
QA75.5-76.95
Virginie Gabrel
Cécile Murat
aurélie Thiele
Portfolio optimization with pw-robustness
description This paper investigates a portfolio optimization problem under uncertainty on the stock returns, where the manager seeks to achieve an appropriate trade-off between the expected portfolio return and the risk of loss. The uncertainty set consists of a finite set of scenarios occurring with equal probability. We introduce a new robustness criterion, called pw-robustness, which seeks to maximize the portfolio return in a proportion p of scenarios and guarantees a minimum return over all scenarios. We model this optimization problem as a mixed-integer programming problem. Through extensive numerical experiments, we identify the instances that can be solved to optimality in an acceptable time using off-the-shelf software. For the instances that cannot be solved to optimality within the time frame, we propose and test a heuristic that exhibits excellent practical performance in terms of computation time and solution quality for the problems we consider. This new criterion and our heuristic methods therefore exhibit great promise to tackle robustness problems when the uncertainty set consists of a large number of scenarios.
format article
author Virginie Gabrel
Cécile Murat
aurélie Thiele
author_facet Virginie Gabrel
Cécile Murat
aurélie Thiele
author_sort Virginie Gabrel
title Portfolio optimization with pw-robustness
title_short Portfolio optimization with pw-robustness
title_full Portfolio optimization with pw-robustness
title_fullStr Portfolio optimization with pw-robustness
title_full_unstemmed Portfolio optimization with pw-robustness
title_sort portfolio optimization with pw-robustness
publisher Elsevier
publishDate 2018
url https://doaj.org/article/aef65b8389be4b87ab45892fec26a22c
work_keys_str_mv AT virginiegabrel portfoliooptimizationwithpwrobustness
AT cecilemurat portfoliooptimizationwithpwrobustness
AT aureliethiele portfoliooptimizationwithpwrobustness
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