Communication Technology and New Media Commons^™

The Rise Of Agenda Diversity In America: Its Cause And Consequences, John K. Wagner

Political Science ETDs

More than ever, Americans disagree on what issues are important. This diversity in the public agenda has received scant attention in recent years. Consequently, our understanding of why agenda diversity developed relies on a single analysis method, and we know next to nothing about the consequences for the American polity. Using a novel approach to measuring agenda diversity and an advanced experimental design, this dissertation demonstrates the causal connection between issue-based selective exposure to news and higher agenda diversity. Concerning its consequences, this work investigates congressional responsiveness. Results from a complex analysis of constituency public opinion, Congress bill sponsorship, and …