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This book explains why the level of party presidentialization varies from one country to another. It considers the effects of constitutional structures as well as the party´s original features, and argues that the degree of party presidentialization varies as a function of the party´s genetics.

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1. Parties ´´ Genetic Features: The Missing Link in the Presidentialization of Parties; Gianluca Passarelli
2. The Presidentialization of Parties in Chile; Peter M. Siavelis and Bonnie N. Field
3. The Presidentialization of American Political Parties; Sergio Fabbrini and Edoardo Bressanelli
4. Political Parties: The Case of Brazil; Felipe Nunes and Carlos Ranulfo Melo
5. The Presidentialization of Dominant Parties in France; Carole Bachelot and Florence Haegel
6. Poland: The Presidentialization of Parties in a Young Democracy; Cristina Bucur and Iain McMenamin
7. Party Presidentialization in Ukraine; Thomas Sedelius
8. The Presidentialization of Party Politics in the UK; Richard Hayton and Timothy Heppell
9. The Presidentialization of Parties in Australia; Anika Gauja
10. The Presidentialization of Political Parties in Germany; Charles Lees
11. The Partial Presidentialization of Parties in Japan; Ellis S. Krauss and Robert Pekkanen
12. The Absence of Party Presidentialization in Italy; Oreste Massari
13. The Presidentialization of Parties: Why, When, Where; Gianluca Passarelli

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"This book is an important contribution to the study of political parties and the role of the presidents in contemporary democracies. Based on 11 in-depth country case studies, it highlights the political dynamics that account for variation in the presidentialization of political parties in different regime types. While stressing the importance of institutions, it shows that the presidentialization of political parties is at least partly shaped by their genetic features. This book provides an important contribution to comparative studies and should be read by both scholars and students alike." Robert Elgie, Dublin City University, Ireland

"With this rich and coherent set of case studies, Passarelli and contributors greatly advance the debate about the extent to which different constitutional systems make possible the ´presidentialization´ of political parties. The authors show that ´presidentialization´ rarely obtains unless the system is institutionally presidential, yet it is important as well to consider specific organizational features of parties which shape the extent of executive dominance over other actors within a party. This book will be essential reading for those concerned with party politics in modern democracies." Matthew S. Shugart, University of California, Davis, USA

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