Nationalism and the Puzzle of Reversing State Size
Journal: World Politics
Year: 2023

abstract: Having increased for centuries, territorial state size began to decline toward the end of the nineteenth century and has continued to do so. The authors argue that processes triggered by ethnic nationalism are the main drivers of this development. Their empirical approach relies on time-varying spatial data on state borders and ethnic geography since the nineteenth century. Focusing on deviations from the nation-state ideal, the authors postulate that state internal ethnic fragmentatio