Arbeitspapier

Markowitz portfolios under transaction costs

Markowitz portfolio selection is a cornerstone in finance, both in academia and in the industry. Most academic studies either ignore transaction costs or account for them in a way that is both unrealistic and suboptimal by (i) assuming transaction costs to be constant across stocks and (ii) ignoring them at the portfolio-selection state and simply paying them 'after the fact'. Our paper proposes a method to fix both shortcomings.. As we show, if transaction costs are accounted for (properly) at the portfolio-selection stage, net performance in terms of the Sharpe ratio increases, particularly so for high-turnover strategies.

Language
Englisch

Bibliographic citation
Series: Working Paper ; No. 420

Classification
Wirtschaft
Estimation: General
Portfolio Choice; Investment Decisions
Subject
Covariance matrix estimation
mean-variance efficiency
multivariate GARCH
portfolio selection
transaction costs

Event
Geistige Schöpfung
(who)
Ledoit, Olivier
Wolf, Michael
Event
Veröffentlichung
(who)
University of Zurich, Department of Economics
(where)
Zurich
(when)
2022

DOI
doi:10.5167/uzh-221804
Handle
Last update
2025-03-10T11:41:40+0100

Data provider

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ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.

Object type

  • Arbeitspapier

Associated

  • Ledoit, Olivier
  • Wolf, Michael
  • University of Zurich, Department of Economics

Time of origin

  • 2022

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