{"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>We investigate whether the recently approved reforms of the apportionment of parliamentary seats to parties in the German Bundestag affects the parties’ political influence measured by power indices. We find that under neither reform the underlying simple game, which describes the possibilities to form governments, remains unchanged and as a result the Shapley-Shubik and the Banzhaf index are unaltered. As a consequence, the major change resulting from the reforms is the reduction of the Bundestag’s size to 630 seats.</jats:p>"}],"publication":"Review of Economics","keyword":["Bundestag reform","Banzhaf power index","Shapley-Shubik power index"],"language":[{"iso":"eng"}],"year":"2026","quality_controlled":"1","issue":"3","title":"A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices","publisher":"Walter de Gruyter GmbH","date_created":"2026-03-19T13:51:12Z","status":"public","type":"journal_article","article_type":"original","_id":"65066","department":[{"_id":"205"},{"_id":"475"},{"_id":"200"}],"user_id":"20801","intvolume":"        76","page":"241-270","citation":{"ieee":"P. Duman and C.-J. Haake, “A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices,” <i>Review of Economics</i>, vol. 76, no. 3, pp. 241–270, 2026, doi: <a href=\"https://doi.org/10.1515/roe-2024-0048\">10.1515/roe-2024-0048</a>.","chicago":"Duman, Papatya, and Claus-Jochen Haake. “A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices.” <i>Review of Economics</i> 76, no. 3 (2026): 241–70. <a href=\"https://doi.org/10.1515/roe-2024-0048\">https://doi.org/10.1515/roe-2024-0048</a>.","apa":"Duman, P., &#38; Haake, C.-J. (2026). A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices. <i>Review of Economics</i>, <i>76</i>(3), 241–270. <a href=\"https://doi.org/10.1515/roe-2024-0048\">https://doi.org/10.1515/roe-2024-0048</a>","ama":"Duman P, Haake C-J. A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices. <i>Review of Economics</i>. 2026;76(3):241-270. doi:<a href=\"https://doi.org/10.1515/roe-2024-0048\">10.1515/roe-2024-0048</a>","bibtex":"@article{Duman_Haake_2026, title={A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices}, volume={76}, DOI={<a href=\"https://doi.org/10.1515/roe-2024-0048\">10.1515/roe-2024-0048</a>}, number={3}, journal={Review of Economics}, publisher={Walter de Gruyter GmbH}, author={Duman, Papatya and Haake, Claus-Jochen}, year={2026}, pages={241–270} }","mla":"Duman, Papatya, and Claus-Jochen Haake. “A Note on the Size Reduction Reform in the German Parliament: A Game Theoretic Analysis of Power Indices.” <i>Review of Economics</i>, vol. 76, no. 3, Walter de Gruyter GmbH, 2026, pp. 241–70, doi:<a href=\"https://doi.org/10.1515/roe-2024-0048\">10.1515/roe-2024-0048</a>.","short":"P. Duman, C.-J. Haake, Review of Economics 76 (2026) 241–270."},"jel":["D72","C71"],"publication_identifier":{"issn":["0948-5139","2366-035X"]},"publication_status":"published","doi":"10.1515/roe-2024-0048","main_file_link":[{"url":"https://www.degruyterbrill.com/document/doi/10.1515/roe-2024-0048/html","open_access":"1"}],"date_updated":"2026-03-19T13:56:59Z","oa":"1","volume":76,"author":[{"first_name":"Papatya","last_name":"Duman","full_name":"Duman, Papatya"},{"id":"20801","full_name":"Haake, Claus-Jochen","last_name":"Haake","first_name":"Claus-Jochen"}]}