This article introduces a novel database that measures governments’ compliance with national constitutions. It combines information on de jure constitutional rules with data on their de facto implementation. The individual compliance indicators can be grouped into four categories that we...

Measurement of both federalism and decentralization has been contentious. We introduce three new indicators reflecting important aspects of both federalism and decentralization. The three new indicators are the result of principal component analysis. When we try to identify their main...

We bring attention to a previously overlooked determinant of de jure-de facto constitutional gaps: a polity's transition to a nation-state. We argue that nation-statehood, predicated on the formation of a strong sense of national identity, lowers the government's incentive to violate...