Political balance in the news: A review of concepts, operationalizations and key findings

Balance is a notoriously difficult concept to operationalize. It has typically been investigated by examining the issues raised in elections, as well as the volume and favorability of coverage of political actors. However, even after collecting these measures, it is difficult to determine precisely what would constitute ‘balanced’ coverage. Based on a comprehensive overview of previous research in western democracies, we argue that political balance can be defined according to a political system perspective (where coverage reflects politically defined norms or regulation) or a media routine perspective (where coverage results from journalistic norms). Unless forced to follow norms, western broadcasting seems to comply with a media routine perspective. Empirically, newspaper coverage is sometimes imbalanced according to both perspectives. Finally, we discuss why only a systematic analysis of explanations across time and space makes it possible to determine whether politically ‘imbalanced’ news is the result of partisan bias or not.