Party Linkage, Public Justification and Mixed Electoral Systems

In recent years, a number of political theorists have aimed to restore the central role of parties in democratic life. These theorists have especially highlighted two key normative functions of parties: linkage and public justification. In this article, I argue that these two functions are often in tension. First, I illustrate how this tension manifests itself in liberal democracies. Second, I explain that parties' ability to fulfil each of the two functions is strongly affected by the electoral system under which they operate: while first-past-the-post encourages party linkage but hinders public justification, the opposite is true of proportional representation. Third, I argue that a mixed electoral system can best guarantee the balance between parties' linkage and justificatory functions. Fourth, I suggest a number of proposals for party reforms that could help mixed electoral systems to balance party linkage and public justification while preventing the re-emergence of the tension between them within parties.