Ep. 5: Discrete Portfolio Adjustment with Fixed Transaction Costs

May 17, 2017

Professor Linus Wilson reads his paper "Discrete Portfolio Adjustment with Fixed Transaction Costs"

Wilson, Linus, Discrete Portfolio Adjustment with Fixed Transaction Costs (January 3, 2016). Available at SSRN: https://ssrn.com/abstract=2406021 or http://dx.doi.org/10.2139/ssrn.2406021


This paper presents a closed form solution to the portfolio adjustment problem in discrete time when the investor faces fixed transaction costs. This transaction cost model assumes a mean-variance investor who wants to adjust her holdings of a risky and risk-free asset. It is shown how this model can be calibrated to be used with a variety of risk models such as life cycle portfolio weights and value at risk (VaR) models. The decision problem can easily be inputted into and calculated in Excel.

 Keywords: adjustment costs, alpha models, brokerage commissions, fixed costs, lifecycle funds, portfolio selection, portfolio theory, risk management, transaction costs, Value at Risk (VaR)

JEL Classification: G11

Click the orange download button to get the full paper on SSRN.