Peter Ordeshook2025-07-282025-07-2820151733-009210.7206/DEC.1733-0092.65https://repozytorium.kozminski.edu.pl/handle/item/3672CC-BY-4.0decentralizationfederalismsubsidiaritydecentralizationfederalismsubsidiarityMancur Olson, collective action and the design of a federal state: The case of UkraineMancur Olson, collective action and the design of a federal state: The case of UkraineArticle