Forecasting plays an increasingly important role in the scientific study of European Union politics and in political science in general. This is because forecasts are not only indispensable for (political) actors who need to form expectations about future events, but can also be used to judge...

Powerful political actors in the international system quite frequently adopt unilateral policies whose implications extend beyond their respective borders. Examples include financial market regulation as well as taxation, trade and environmental policies. They do so to avoid lowest...

We draw on the policy diffusion literature to shed more light on the determinants of treaty ratification, a crucial step in the formation of international regimes. Our hypotheses stipulate that a country's ratification behaviour is influenced by the ratification choices of other countries in...