This article argues that internal substate dynamics can systematically account for the organization of intergovernmental relations (IGR) in dual federal systems. Whereas majoritarian executive-legislative relations tend to weaken the institutionalization of intergovernmental arrangements (IGAs),...

The degree of decentralization is an important explanatory variable in comparative federalism research. Nonetheless, the relationship between decentralization and the interdependence between governments is underspecified. This article distinguishes decentralization and interdependence...