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The Role of Media Slant in Elections and Economics

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  • John Duggan

    ()
    (Department of Political Science and Department of Economics University of Rochester)

  • Cesar Martinelli

    ()
    (Centro de Investigacion Economica (CIE), Instituto Tecnologico Autonomo de Mexico (ITAM))

Abstract

We formalize the concept of media slant as a relative emphasis on different issues of political interest by the media, and we illustrate the effects of the media choice of slant on political outcomes and economic decisions in a rational expectations model. In a two-candidate election, if the media is biased in favor of the underdog, then it will put more emphasis on issues with a large electoral impact, hoping that the news will deliver an upset victory. Whether citizens are better off with media biased in favor of the underdog or the frontrunner depends on the importance of choosing the "right" candidate for citizens versus the impact of political news on the private economic decisions of voters. Balanced media, giving each issue equal coverage, may be worse for voters than partisan media.

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File URL: http://ftp.itam.mx/pub/academico/inves/martinelli/08-02.pdf
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Bibliographic Info

Paper provided by Centro de Investigacion Economica, ITAM in its series Working Papers with number 0802.

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Length: 39 pages
Date of creation: Mar 2008
Date of revision:
Handle: RePEc:cie:wpaper:0802

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  1. Matthew Gentzkow & Jesse M. Shapiro, 2010. "What Drives Media Slant? Evidence From U.S. Daily Newspapers," Econometrica, Econometric Society, vol. 78(1), pages 35-71, 01.
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  15. Zwiebel, Jeffrey H. & Vayanos, Dimitri & DeMarzo, Peter M., 2001. "Persuasion Bias, Social Influence, and Uni-Dimensional Opinions," Research Papers 1719, Stanford University, Graduate School of Business.
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  17. Baron, David P., 2006. "Persistent media bias," Journal of Public Economics, Elsevier, vol. 90(1-2), pages 1-36, January.
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