ABSTRACT
Comparative federalism traditionally has focused on understanding and comparing how various multi-tiered contexts operate institutionally and constitutionally. In recent years, federal theorists and policy scholars have become increasingly interested in how federal, decentralized, regionalized, or hybrid political systems solve policy problems. What instruments do they apply to tackle problems? Are they better at tackling some than others? Are they more or less able to govern the environment, healthcare, or fiscal matters than hybrid or unitary countries?
