The past and arguably the future of the European Union (EU) are characterized by Differentiated Integration (DI). Whereas a number of studies examine country variance in the realization of DI due to state-level characteristics, scholars have rarely addressed sector-specific differentiation. We...

Since the Treaty of Lisbon, national parliamentary chambers in the European Union can issue reasoned opinions on legislative proposals by the European Commission. These individual reasoned opinions lead to a review if at least one third of all chambers raise such concerns. Hence, coordination...

Salience as the intensity of interest is a key explanatory factor of European Union decision-making. In this article, the ability of three explanatory models to explain the realized values of Member States’ salience is hypothesized and tested. On the basis of the DEU II data, the analysis...