Market-based measures of viewpoint diversity

•We propose a framework to develop market-based measures of viewpoint diversity.•We use this framework to develop four viewpoint diversity measures for local news.•We examine how viewpoint diversity is related to local market conditions.•Viewpoint diversity measures are not strongly related to media...

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Bibliographic Details
Published in:Information economics and policy 2014-03, Vol.26, p.1-11
Main Authors: Rennhoff, Adam D., Wilbur, Kenneth C.
Format: Article
Language:English
Subjects:
Business ownership
Econometrics
L13
L82
Market structure
Mass media
Measurement techniques
Media ownership
News
Studies
Viewpoint diversity
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Summary:•We propose a framework to develop market-based measures of viewpoint diversity.•We use this framework to develop four viewpoint diversity measures for local news.•We examine how viewpoint diversity is related to local market conditions.•Viewpoint diversity measures are not strongly related to media ownership structures. 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.
ISSN:0167-6245
1873-5975
DOI:10.1016/j.infoecopol.2013.10.002