Abstract
The number of countries embracing federalism is rocketing and research on federalism is booming. Federal studies are eventually abandoning the vain search for definitional clarity, and increasingly look at the potential of federalism to provide solutions to some of the most pressing challenges to contemporary constitutionalism. Federalism is indeed the oldest institutional mechanism to regulate pluralism, and has therefore a lot to offer in solving contemporary challenges originating from the quest for more pluralism, both institutional and societal.