This volume provides an up-to-date examination of the conceptualisations, causes, and consequences of partisanship, one of the most fundamental concepts in contemporary political science. Presenting a comprehensive account and assessment of partisanship in comparative empirical research, contributors to this volume not only assess past literature in this area, but also advance current debates. Focussing on three key aspects of partisanship, the volume covers theories of partisanship, the dynamics of partisanship and the behavioural consequences of partisanship in both new and established democracies.Particular features of the volume include: up-to-date data on partisanship across a wide range of countries including the new democracies in Eastern Europe; contributions from well-established and well-recognised scholars in the field; and, new theoretical insights presented alongside existing literature. "Political Parties and Partisanship" will be of interest to students and scholars of political science, political behaviour, sociology and political psychology.