The Agenda-Setting Function of National Versus Local Media: A Time-Series Analysis for the Issue of Same-Sex Marriage

This study compares the agenda-setting effects of national and local media on public salience in a market where an issue was both local and national with the effects in a market where it was primarily national. A new measure of public salience is also introduced. Results indicate that agenda-setting effects of local and national media are very different, with local media exerting a stronger agenda-setting influence when the issue is both local and national.