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Title: The simplicity of optimal trading in order book markets
Authors: Ladley, Daniel
Pellizzari, Paolo
First Published: 2014
Publisher: Springer
Citation: Ladley, D;Pellizzari, P, The Simplicity of Optimal Trading in Order Book Markets, ed. Dieci, R;He, X-Z;Hommes, CH, 'Nonlinear Economic Dynamics and Financial Modelling', Springer, 2014, pp. 183-199
Abstract: A trader’s execution strategy has a large effect on his profits. Identifying an optimal strategy, however, is often frustrated by the complexity of market mi- crostructure’s. We analyse an order book based continuous double auction market under two different models of trader’s behaviour. In the first case actions only de- pend on a linear combination of the best bid and ask. In the second model traders adopt the Markov perfect equilibrium strategies of the trading game. Both models are analytically intractable and so optimal strategies are identified by the use of nu- merical techniques. Using the Markov model we show that, beyond the best quotes, additional information has little effect on either the behaviour of traders or the dy- namics of the market. The remarkable similarity of the results obtained by the linear model indicates that the optimal strategy may be reasonably approximated by a lin- ear function. We conclude that whilst the order book market and strategy space of traders are potentially very large and complex, optimal strategies may be relatively simple and based on a minimal information set.
ISBN: 3319074709
Version: Post-print
Status: Peer-reviewed
Type: Chapter
Rights: Copyright © 2014,Springer.
Appears in Collections:Books & Book Chapters, Dept. of Economics

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