Implications of Transaction Costs for the Post-Earnings-Announcement Drift
55 Pages Posted: 2 May 2006 Last revised: 18 Apr 2013
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Implications of Transaction Costs for the Post-Earnings-Announcement Drift
Implications of Transaction Costs for the Post-Earnings-Announcement Drift
Date Written: October 2007
Abstract
This paper examines the effect of transaction costs on the post-earnings-announcement drift (PEAD). Using standard market microstructure features we show that transaction costs constrain the informed trades that are necessary to incorporate earnings information into price. This leads to weaker return responses at the time of the earnings announcement and higher subsequent returns drift for firms with high transaction costs. Consistent with this prediction, we find that earnings response coefficients are lower for firms with higher transaction costs. Using portfolio analyses, we find that the profits of implementing the PEAD trading strategy are significantly reduced by transaction costs. In addition, we show, using a combination of portfolio and regression analyses, that firms with higher transaction costs are the ones that provide the higher abnormal returns for the PEAD strategy. Our results indicate that transaction costs can provide an explanation not only for the persistence but also for the existence of PEAD.
Keywords: market efficiency, transaction costs, post-earnings announcement drift
JEL Classification: G12, G14, M41
Suggested Citation: Suggested Citation
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