Market-Based Measures of Viewpoint Diversity
26 Pages Posted: 24 Oct 2013
Date Written: October 22, 2013
Existing market-based measures of viewpoint diversity in the media have been criticized for lacking a theoretical foundation. This paper proposes a theoretical framework to develop market-based measures of viewpoint diversity. It then uses this framework to develop four viewpoint diversity measures using a panel dataset of local television ratings. Finally, an econometric model relates these viewpoint diversity measures to media ownership variables. It does not appear that market-based measures of viewpoint diversity are strongly related to media ownership structures.
Keywords: Concentration, Diversity, Media Economics, News, Regulation, Television, Viewpoint Diversity
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