NONE 20251212071651733 wseas/wseas content-registration-form+ja@crossref.org content-registration-form WSEAS TRANSACTIONS ON BUSINESS AND ECONOMICS 1109-9526 2224-2899 Janusz Łyko Department of Mathematics and Cybernetics, Wroclaw University of Economics and Business, Komandorska 118/120 53-345 Wroclaw, POLAND In apportionment problems, allocation rules are often defined using real-valued functions. When defining such a rule, one typically considers the values of a selected function at points corresponding to the sequence of entitlements of agents participating in the division, and uses appropriately chosen rounding to determine the allocation. This idea is characteristic, for example, of all divisor methods widely used in practical electoral problems. However, this is not the only possible construction. In discussions regarding degressively proportional seat allocation in the European Parliament, other methods of using real functions to construct allocation rules are also known. 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