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How does latent liquidity get revealed in the limit order book?

Lorenzo Dall'Amico, Antoine Fosset, Jean-Philippe Bouchaud and Michael Benzaquen

Papers from arXiv.org

Abstract: Latent order book models have allowed for significant progress in our understanding of price formation in financial markets. In particular they are able to reproduce a number of stylized facts, such as the square-root impact law. An important question that is raised -- if one is to bring such models closer to real market data -- is that of the connection between the latent (unobservable) order book and the real (observable) order book. Here we suggest a simple, consistent mechanism for the revelation of latent liquidity that allows for quantitative estimation of the latent order book from real market data. We successfully confront our results to real order book data for over a hundred assets and discuss market stability. One of our key theoretical results is the existence of a market instability threshold, where the conversion of latent order becomes too slow, inducing liquidity crises. Finally we compute the price impact of a metaorder in different parameter regimes.

New Economics Papers: this item is included in nep-fmk and nep-mst
Date: 2018-08, Revised 2018-11
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