Abstract
In this article, I attempt to clarify the relationships among three contemporary concepts that are often used interchangeably or conflated in the literature: anti-establishment politics, political outsiders and populism. In order to make sense of these manifestations of public discontent, I argue that one must examine the nature of political appeals, political actors' locations vis-à-vis the party system and the linkages between citizens and government. Doing so, furthermore, helps clarify the meaning of populism, one of the most elusive concepts in political science. The definition of populism I offer allows us to synthesize much of the literature on the subject while weeding out unnecessary and secondary characteristics. Importantly, too, this definition allows us to separate competing claims of `direct democracy' and thus populists from non-populists.