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Why Do Security Prices Change? A Transaction-Level Analysis of NYSE Stocks

Why Do Security Prices Change? A Transaction-Level Analysis of NYSE Stocks This article develops and tests a structural model of intraday price formation that embodies public information shocks and microstructure effects. We use the model to analyze intraday patterns in bid-ask spreads, price volatility, transaction costs, and return and quote auto-correlations, and to construct metrics for price discovery and effective trading costs. Information asymmetry and uncertainty over fundamentals decrease over the day, although transaction costs increase. The results help explain the U-shaped pattern in intraday bid-ask spreads and volatility, and are also consistent with the intra-day decline in the variance of ask price changes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Review of Financial Studies Oxford University Press

Why Do Security Prices Change? A Transaction-Level Analysis of NYSE Stocks

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References (35)

Publisher
Oxford University Press
Copyright
Oxford University Press
ISSN
0893-9454
eISSN
1465-7368
DOI
10.1093/rfs/10.4.1035
Publisher site
See Article on Publisher Site

Abstract

This article develops and tests a structural model of intraday price formation that embodies public information shocks and microstructure effects. We use the model to analyze intraday patterns in bid-ask spreads, price volatility, transaction costs, and return and quote auto-correlations, and to construct metrics for price discovery and effective trading costs. Information asymmetry and uncertainty over fundamentals decrease over the day, although transaction costs increase. The results help explain the U-shaped pattern in intraday bid-ask spreads and volatility, and are also consistent with the intra-day decline in the variance of ask price changes.

Journal

The Review of Financial StudiesOxford University Press

Published: Oct 4, 1997

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