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Review of Financial Studies Vol. 30 No. 4 2017

The Dynamics of Market Efficiency

Dominik M. Rösch1; Avanidhar Subrahmanyam2; Mathijs A. Van Dijk3

1 State University of New York, Buffalo · 2 University of California, Los Angeles · 3 Rotterdam School of Management Erasmus University

open access

Abstract

We study the dynamics of high-frequency market efficiency measures. We provide evidence that these measures comove across stocks and with each other, suggesting the existence of a systematic market efficiency component. In vector autoregressions, we show that shocks to funding liquidity (the TED spread), hedge fund assets under management, and a proxy for algorithmic trading are significantly associated with systematic market efficiency. Thus, stock market efficiency is prone to systematic fluctuations, and, consistent with recent theories, events and policies that impact funding liquidity can affect the aggregate degree of price efficiency.

DOI
10.1093/rfs/hhw085
Volume
30
Issue
4
Pages
1151-1187
Language
en
Sources
openalex crossref

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