New Economics Papers
on Market Microstructure
Issue of 2012‒06‒13
one paper chosen by
Thanos Verousis

  1. Calibration of optimal execution of financial transactions in the presence of transient market impact By Enzo Busseti; Fabrizio Lillo

  1. By: Enzo Busseti; Fabrizio Lillo
    Abstract: Trading large volumes of a financial asset in order driven markets requires the use of algorithmic execution dividing the volume in many transactions in order to minimize costs due to market impact. A proper design of an optimal execution strategy strongly depends on a careful modeling of market impact, i.e. how the price reacts to trades. In this paper we consider a recently introduced market impact model (Bouchaud et al., 2004), which has the property of describing both the volume and the temporal dependence of price change due to trading. We show how this model can be used to describe price impact also in aggregated trade time or in real time. We then solve analytically and calibrate with real data the optimal execution problem both for risk neutral and for risk averse investors and we derive an efficient frontier of optimal execution. When we include spread costs the problem must be solved numerically and we show that the introduction of such costs regularizes the solution.
    Date: 2012–06

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