ABSTRACT
This article identifies the limits and possibilities of the federal comparison for the European Union party system. Can the literatures on parties and party systems in multi-level systems deliver more insights to the analysis of the developing life of parties and party competition in the European Union? What are the most productive dialogs between scholars of federal and multilevel parties and scholars of European Union parties? It argues that the study of representation in the EU involves two key multi-level challenges: vote choice in a multi-level setting and party system development through upward aggregation. Drawing more closely from the comparative federalism literature can provide analytical leverage for both issues.
