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This Element develops an analytical framework for understanding the role of ideas in political life and communication. Power in Ideas argues that the empirical study of ideas should combine interpretive approaches to derive meaning and understand influence with quantitative analysis to help determine the reach, spread, and impact of ideas. This Element illustrates this approach through three case studies: the idea of reparations in Ta-Nehisi Coates's “The Case for Reparations,” the idea of free expression in Mark Zuckerberg's Facebook policy speech at Georgetown University, and the idea of universal basic income in Andrew Yang's “Freedom Dividend.” Power in Ideas traces the landscapes and spheres within which these ideas emerged and were articulated, the ways they were encoded in discourse, the fields they traveled across, and how they became powerful.

This Element provides a concise review of the existing literature on content, antecedents and consequences of economic news coverage. It tests and refines prominent assumptions and hypotheses in this area. Relying on communication science theories such as framing, news values and media dependency theories, we first outline and explain how media cover the economy. Additionally, it demonstrates that coverage has a fundamental impact above and beyond the state of the economy, both on economic perceptions and political attitudes of citizens, as well as on political decision makers and media reputation of a wide variety of organizations.

In spite of what appears to be the increasingly negative tone of media coverage, this Element suggests that the prevalence of positive news is likely to increase, for three reasons: (1) valence-based asymmetries vary over time, (2) valence-based asymmetries vary across individuals, and (3) technology facilitates diverse news platforms catering to diverse preferences. Each of these claims is examined in detail here, based on analyses of prior and/or novel data on media content, psychophysiological responses, and survey-based experiments. Results are considered as they relate to our understanding of media gatekeeping, political communication, and political psychology, and also as actionable findings for producers of media content, communications platforms, and media consumers.

Local newspapers can hold back the rising tide of political division in America by turning away from the partisan battles in Washington and focusing their opinion page on local issues. When a local newspaper in California dropped national politics from its opinion page, the resulting space filled with local writers and issues. We use a pre-registered analysis plan to show that after this quasi-experiment, politically engaged people did not feel as far apart from members of the opposing party, compared to those in a similar community whose newspaper did not change. While it may not cure all of the imbalances and inequities in opinion journalism, an opinion page that ignores national politics could help local newspapers push back against political polarization.