Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint

This paper studies mean–variance portfolio selection problem subject to proportional transaction costs and no-shorting constraint. We do not impose any distributional assumptions on the asset returns. By adopting dynamic programming, duality theory, and a comparison approach, we manage to derive a s...

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Main Authors: Pun, Chi Seng, Ye, Zi
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/159367
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author Pun, Chi Seng
Ye, Zi
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Pun, Chi Seng
Ye, Zi
author_sort Pun, Chi Seng
collection NTU
description This paper studies mean–variance portfolio selection problem subject to proportional transaction costs and no-shorting constraint. We do not impose any distributional assumptions on the asset returns. By adopting dynamic programming, duality theory, and a comparison approach, we manage to derive a semi-closed form solution of the optimal dynamic investment policy with the boundaries of buying, no-transaction, selling, and liquidation regions. Numerically, we illustrate the properties of the optimal policy by depicting the corresponding efficient frontiers under different rates of transaction costs and initial wealth allocations. We find that the efficient frontier is distorted due to the transaction cost incurred. We also examine how the width of the no-transaction region varies with different transaction cost rates. Empirically, we show that our transaction-cost-aware policy outperforms the transaction-cost-unaware policy in a realistic trading environment that incurs transaction costs.
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spelling ntu-10356/1593672022-06-16T05:04:38Z Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint Pun, Chi Seng Ye, Zi School of Physical and Mathematical Sciences Science::Mathematics Portfolio Selection Proportional Transaction Costs This paper studies mean–variance portfolio selection problem subject to proportional transaction costs and no-shorting constraint. We do not impose any distributional assumptions on the asset returns. By adopting dynamic programming, duality theory, and a comparison approach, we manage to derive a semi-closed form solution of the optimal dynamic investment policy with the boundaries of buying, no-transaction, selling, and liquidation regions. Numerically, we illustrate the properties of the optimal policy by depicting the corresponding efficient frontiers under different rates of transaction costs and initial wealth allocations. We find that the efficient frontier is distorted due to the transaction cost incurred. We also examine how the width of the no-transaction region varies with different transaction cost rates. Empirically, we show that our transaction-cost-aware policy outperforms the transaction-cost-unaware policy in a realistic trading environment that incurs transaction costs. Ministry of Education (MOE) Chi Seng Pun gratefully acknowledges Ministry of Education (MOE), AcRF Tier 2 grant (Reference No: MOE2017-T2-1-044) for the funding of this research. 2022-06-16T05:04:38Z 2022-06-16T05:04:38Z 2022 Journal Article Pun, C. S. & Ye, Z. (2022). Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint. Automatica, 135, 109986-. https://dx.doi.org/10.1016/j.automatica.2021.109986 0005-1098 https://hdl.handle.net/10356/159367 10.1016/j.automatica.2021.109986 2-s2.0-85118259762 135 109986 en MOE2017-T2-1-044 Automatica © 2021 Elsevier Ltd. All rights reserved.
spellingShingle Science::Mathematics
Portfolio Selection
Proportional Transaction Costs
Pun, Chi Seng
Ye, Zi
Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title_full Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title_fullStr Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title_full_unstemmed Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title_short Optimal dynamic mean–variance portfolio subject to proportional transaction costs and no-shorting constraint
title_sort optimal dynamic mean variance portfolio subject to proportional transaction costs and no shorting constraint
topic Science::Mathematics
Portfolio Selection
Proportional Transaction Costs
url https://hdl.handle.net/10356/159367
work_keys_str_mv AT punchiseng optimaldynamicmeanvarianceportfoliosubjecttoproportionaltransactioncostsandnoshortingconstraint
AT yezi optimaldynamicmeanvarianceportfoliosubjecttoproportionaltransactioncostsandnoshortingconstraint