New book publication by Kai Schulze

The book investigates why some states are more likely than others to ratify international treaties. Rather than attributing variation solely to international pressure or interdependence, it highlights the pivotal role of domestic political actors — political parties, interest groups, and their interactions — in shaping states’ international commitments.

Key contributions include:

• A rich historical-comparative empirical analysis covering 83 environmental and 150 labour treaties and their ratification by industrialised democracies since 1919

• A theoretical integration of partisan and interest group politics into explanations of treaty ratification

• A comparative test of five major theories of partisan effects

Learn more about the book here:

https://link.springer.com/book/10.1007/978-3-031-99942-0