By ALAN B. KRUEGER - Published: August 18, 2005
THE share of Americans who believe that news organizations are "politically biased in their reporting" increased to 60 percent in 2005, up from 45 percent in 1985, according to polls by the Pew Research Center.
Many people also believe that biased reporting influences who wins or loses elections. A new study by Stefano DellaVigna of the University of California, Berkeley, and Ethan Kaplan of the Institute for International Economic Studies at Stockholm University, however, casts doubt on this view. Specifically, the economists ask whether the advent of the Fox News Channel, Rupert Murdoch's cable television network, affected voter behavior. They found that Fox had no detectable effect on which party people voted for, or whether they voted at all.
An appealing feature of their study is that it does not matter if Fox News represents the political center and the rest of the media the liberal wing, or Fox represents the extreme right and the rest of the media the middle. Fox's political orientation is clearly to the right of the rest of the media. Research has found, for example, that Fox News is much more likely than other news shows to cite conservative think tanks and less likely to cite liberal ones.
Fox surely injected a new partisan perspective into political coverage on television. Did it matter?
The Fox News Channel started operating on Oct. 7, 1996, in a small number of cable markets. Professors DellaVigna and Kaplan painstakingly collected information on which towns offered Fox as part of their basic or extended cable service as of November 2000, and then linked this information to voting records for the towns. Their sample consists of 8,630 towns and cities from 24 states. (Because many states do not report vote tallies at the town level, they could not be included in the sample.)
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http://www.nytimes.com/2005/08/18/business/media/18scene.html