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American Economic Review Vol. 101 No. 7 2011

Endogenous Information Flows and the Clustering of Announcements

Viral V. Acharya1; Peter DeMarzo2; Ilan Kremer2

1 New York University Stern School of Business, 44 West Fourth St, New York, NY 10012, CEPR, and NBER. · 2 Graduate School of Business, Stanford University, 518 Memorial Way, Stanford, CA 94305-5015.

Abstract

We consider the strategic timing of information releases in a dynamic disclosure model. Because investors don't know whether or when the firm is informed, the firm will not necessarily disclose immediately. We show that bad market news can trigger the immediate release of information by firms. Conversely, good market news slows the release of information by firms. Thus, our model generates clustering of negative announcements. Surprisingly, this result holds only when firms can preemptively disclose their own information prior to the arrival of external information. These results have implications for conditional variance and skewness of stock returns.

DOI
10.1257/aer.101.7.2955
Volume
101
Issue
7
Pages
2955-2979
Language
en
Sources
openalex bibtex:phds-export.bib crossref

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