Thierry Foucault

Marco Pagano

Ailsa Roell

Ailsa Röell

This book offers an authorative take on the liquidity of securities markets, its determinants, and its effects. It presents the basic modeling and econometric tools used in market microstructure - the area of finance that studies price formation in securities markets.

Theory, Evidence, and Policy

Market Liquidity

Frédéric Abergel

Mathieu Rosenbaum

Charles-Albert Lehalle

Jean-Philippe Bouchaud

The latest cutting-edge research on market microstructure Based on the December 2010 conference on market microstructure, organized with the help of the Institut Louis Bachelier, this guide brings together the leading thinkers to discuss this important field of modern finance. It provides readers with vital insight on the origin of the well-known anomalous "stylized facts" in financial prices series, namely heavy tails, volatility, and clustering, and illustrates their impact on the organization of markets, execution costs, price impact, organization liquidity in electronic markets, and other issues raised by high-frequency trading. World-class contributors cover topics including analysis of high-frequency data, statistics of high-frequency data, market impact, and optimal trading. This is a must-have guide for practitioners and academics in quantitative finance.

Confronting Many Viewpoints

Market Microstructure

We show that retail trading activity has a positive effect on the volatility of stock returns. To identify this effect, we use a reform of the French stock market that triggers a drop in retail trading activity by raising the relative cost of speculative trading for retail investors. The daily return volatility of the stocks affected by the reform falls by twenty basis points (a quarter of the sample standard deviation of the return volatility) relative to other stocks. For affected stocks, we also find a significant decrease in the magnitude of return reversals and the price impact of trades. We argue that these findings are consistent with the view that some retail investors behave as noise traders.

Individual Investors and Volatility

Thierry Foucault

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