Estimating the Causal Effects of Media Coverage on Policy‐Specific Knowledge

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Abstract
Policy facts are among the most relevant forms of knowledge in a democracy. Although the mass media seem like an obvious source of policy‐specific information, past research in this area has been plagued by design and methodological problems that have hindered causal inferences. Moreover, few studies include measures of media content, preventing researchers from being able to say what it is about media coverage that influences learning. We advance the literature by employing a simple but underutilized approach for estimating the causal effects of news coverage. Drawing upon a unique collection of cross‐sectional survey data, we make within‐survey/within‐subjects comparisons under conditions of high and low media coverage. We show how the volume, breadth, and prominence of news media coverage increase policy‐specific knowledge above and beyond common demographic factors.

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