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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Elsevier
2018
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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) |
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90C90 Applied mathematics. Quantitative methods T57-57.97 Electronic computers. Computer science QA75.5-76.95 |
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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 |
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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 |
_version_ |
1718400848096133120 |