Collective and Individual Decisions

The Electoral System and Election Results: The Case of the Elections to the Sejm of the Republic of Poland

Haman, Jacek

University of Warsaw, Poland

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Abstract

The article examines the impact of nine counterfactual modifications to the Polish elector-al system on the results of the Sejm elections held on October 15, 2023. Scenarios analyzed include various methods of demographic seat adjustments, redistribution of overseas votes, changes to proportionality methods (D’Hondt vs. Sainte-Laguë), and changing the number of electoral districts. The issue of how deeper changes to the system may affect the strategic behavior of parties and voters is also analyzed. Results indicate that while each modification slightly alters seat distribution among parties, most changes do not significantly affect the overall balance of power in the Sejm.

Metadata

Journal Collective and Individual Decisions 
Issue 36 
Issue date 12/2024 
Type Article 
Language en
Pagination 17-40
DOI DOI: 10.7206/cid.3071-7973.2
ISSN 3071-7973
eISSN 2391-761X