현재 아일랜드 더블린 대학교(University College Dublin)의 정치학과 교수이며, 같은 대학 정치·국제관계대학 학장으로 재직 중이다. 저서와 편저서로는 Political Parties and Democratic Linkage: How Parties Organize Democracy(2011), Representing Europe’s Citizens? Electoral Institutions and the Failure of Parliamentary Representation(2007), Non-Party Actors in Electoral Politics: The Role of Interest Groups and Independent Citizens in Contemporary Election Campaigns(2008), The Australian Electoral System: Origins, Variation and Consequences(2006), Political Parties and Political Systems: The Concept of Linkage Revisited(2005) 등이 있다.