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Trading fees and efficiency in limit order markets

Abstract : We study competition between a dealer (OTC) market and a limit order market. In the limit order market, investors can choose to be "makers" (post limit orders) or "takers" (hit limit orders) whereas in the dealer market they must trade at dealers' quotes. Moreover, in the limit order market, investors pay a trading fee to the operator of this market ("the matchmaker"). We show that an increase in the matchmaker's trading fee can raise investors' ex-ante expected welfare. Actually, it induces makers to post more aggressive offers and thereby it raises the likelihood of a direct trade between investors. For this reason as well, a reduction in the matchmaker's trading fee can counter-intuitively raise the OTC market share. However, entry of a new matchmaker results in an improvement in investors' welfare, despite its negative effect on trading fees. The model has testable implications for the effects of a change in trading fees and their breakdown between makers and takers on various measures of market liquidity.
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https://hal-hec.archives-ouvertes.fr/hal-00722602
Contributor : Antoine Haldemann <>
Submitted on : Thursday, August 2, 2012 - 3:54:56 PM
Last modification on : Thursday, January 11, 2018 - 6:19:31 AM

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  • HAL Id : hal-00722602, version 1

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Thierry Foucault, Jean-Edouard Colliard. Trading fees and efficiency in limit order markets. 2012. ⟨hal-00722602⟩

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