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Journalists and the Stock Market

Casey Dougal1; Joseph Engelberg2,3; Diego García; Christopher A. Parsons2,3

1 University of North Carolina at Chapel Hill · 2 University of San Diego · 3 University of California San Diego

Review of Financial Studies 2012

We use exogenous scheduling of Wall Street Journal columnists to identify a causal relation between financial reporting and stock market performance. To measure the media's unconditional effect, we add columnist fixed effects to a daily regression of excess Dow Jones Industrial Average returns. Relative to standard control variables, these fixed effects increase the R-super-2 by about 35%, indicating each columnist's average persistent "bullishness" or "bearishness." To measure the media's conditional effect, we interact columnist fixed effects with lagged returns. This increases explanatory power by yet another one-third, and identifies amplification or attenuation of prevailing sentiment as a tool used by financial journalists. The Author 2012. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please e-mail: [email protected]., Oxford University Press.

DOI
10.1093/rfs/hhr133
Volume
25 (3)
Pages
639-679
Language
en
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