Discussion Paper Details

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Title: The Granular Nature of Large Institutional Investors

Author(s): Itzhak Ben-David, Francesco Franzoni, Rabih Moussawi and John Sedunov

Publication Date: January 2019

Keyword(s): Concentration, fire sales, granularity, institutional investors and liquidity

Programme Area(s): Financial Economics

Abstract: Large institutional investors own an increasing share of equity markets in the U.S. The implications of this development for financial markets are still unclear. The paper presents novel empirical evidence that ownership by large institutions predicts higher volatility and greater noise in stock prices, as well as more fragility at times of crisis. Evidence from a natural experiment suggests a causal interpretation of this effect. When studying the channel, we find that large institutional investors exhibit traits of granularity, i.e. subunits within a firm display correlated behavior, which reduces diversification of idiosyncratic shocks.

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Bibliographic Reference

Ben-David, I, Franzoni, F, Moussawi, R and Sedunov, J. 2019. 'The Granular Nature of Large Institutional Investors'. London, Centre for Economic Policy Research.