Quote Setting and Price Formation in an Order Driven Market
Posted: 14 Aug 2002
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Quote Setting and Price Formation in an Order Driven Market
Abstract
This paper models quote setting and price formation in a non-intermediated, order driven market where trading occurs because investors differ in their share valuations and the advent of news that is not common knowledge, and tests the model using transaction data on individual stocks in the ParisBourse CAC40 index. As an extension of Foucault (1999), we show that the size of the spread is a function of the differences in valuation among investors and of adverse selection. Both GMM estimation of the model parameters and empirical evidence on spread behavior as the relative proportion of buyers and sellers in the market changes, provide strong support for the model. Our analysis yields further insight into the dynamic process of price formation and into the market clearing process in an order driven market.
Keywords: Price Formation, Order driven market, Limit order trading
JEL Classification: G12
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