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Market Making with Costly Monitoring: An Analysis of the SOES Controversy

Abstract : This article presents a model of information monitoring and market making in a dealership market. We model how intensively dealers monitor public information to avoid being picked off by professional day traders when monitoring is costly. Price competition among dealers is hampered by their incentives to share monitoring costs. The risk of being picked off by the day traders makes dealers more competitive. The interaction between these effects determines whether a firm quote rule improves trading costs and price discovery. Our empirical results support the prediction that professional day traders prefer stocks with small spreads, but offer less support for the prediction that their trading leads to wider spreads.
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https://hal-hec.archives-ouvertes.fr/hal-00459778
Contributor : Antoine Haldemann <>
Submitted on : Thursday, February 25, 2010 - 10:23:43 AM
Last modification on : Thursday, January 11, 2018 - 6:19:31 AM

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Thierry Foucault, Ailsa Roell, Patrik Sandas. Market Making with Costly Monitoring: An Analysis of the SOES Controversy. Review of Financial Studies, Oxford University Press (OUP), 2003, Vol.16,n°2, pp.345-384. ⟨10.1093/rfs/hhg005⟩. ⟨hal-00459778⟩

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