Smoothing and parametric rules for stochastic mean-CVaR optimal execution strategy

Somayeh Moazeni, Thomas F. Coleman, Yuying Li

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Computing optimal stochastic portfolio execution strategies under an appropriate risk consideration presents many computational challenges. Using Monte Carlo simulations, we investigate an approach based on smoothing and parametric rules to minimize mean and Conditional Value-at-Risk (CVaR) of the execution cost. The proposed approach reduces computational complexity by smoothing the nondifferentiability arising from the simulation discretization and by employing a parametric representation of a stochastic strategy. We further handle constraints using a smoothed exact penalty function. Using the downside risk as an example, we show that the proposed approach can be generalized to other risk measures. In addition, we computationally illustrate the effect of including risk on the stochastic optimal execution strategy.

Original languageEnglish
Pages (from-to)99-120
Number of pages22
JournalAnnals of Operations Research
Volume237
Issue number1-2
DOIs
StatePublished - 1 Feb 2016

Keywords

  • Computational stochastic programming
  • Dynamic programming
  • Optimal execution
  • Penalty functions

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