The Concept of Degressive and Progressive Proportionality and Its Normative and Descriptive Applications

Abstract

Abstract. The article discusses the concept of progressive and degressive proportionality of the distribution of parliamentary seats. In the first part are presented axiological sources of the principles of proportionality and progressive and degressive proportionality and the history of degressively proportional apportionments of seats in the European Parliament. The main part of the article is devoted to the formulation of proposals for strict formal definition of degressive and progressive proportionality, and a description of the method of apportionment of seats in the European Parliament based on the strict definition of degressive proportionality and maintaining maximum compatibility with former apportionments adopted in multilateral negotiations. The last part of the article consists of a discussion of the possibilities of adopting the concept of progressive proportionality in the analysis of the functioning of parliamentary electoral systems.

Cambridge Compromise As A Method Of Degressively Proportional Distribution Of Goods

“…The literature (Ramírez González et al, 2012;Delgado-Márquez et al, 2013) adopted terminology of "unrounded degressive proportionality" (Słomczyński & Życzkowski, 2012;Cegiełka, 2016) in opposition to "rounded degressive proportionality", where allocation = ( ' , * , … , , ) satisfies the conditions (1) and (2). (Maciuk, 2011;Dniestrzański & Łyko, 2014;Haman, 2017).…”

A neutral core of degressively proportional allocations under lexicographic preferences of agents

“…Furthermore, algorithms producing degressively proportional divisions are put forward. Among others, the papers (Arora et al, 2016;Charvat, 2019;Chen et al, 2017;Dniestrzański, 2014a, b;Dniestrzański & Łyko, 2014;Haman, 2017;Łyko & Rudek, 2013;Słomczyński & Życzkowski, 2012) deal with those topics.…”

“…A lot of research is also focused on one of the most important proposals developed in 2011 by the participants of the scientific meeting held at the instigation of the Committee on Constitutional Affairs of the European Parliament (AFCO) at the Centre for Mathematical Sciences, University of Cambridge. The papers such as Cegiełka et al (2019), Duff (2012), Grimmett (2012), Grimmett et al (2012), Habermas (2017, Haman (2017), Laslier (2012), Łyko and Rudek (2017), Macé and Treibich (2012), Moberg (2012), Grimmett (2018), Policy Department (2017) and Słomczyński and Życzkowski (2012) deal with this subject among other things.…”

Zastoupení členských zemí v Evropském parlamentu po volbách 2019

“…Ve svém důsledku tak otázka rozdělení mandátů v Evropském parlamentu mezi členské země Unie představuje spíše okrajové a asi nejvíce podreprezentované téma ve výzkumu evropských institucí, respektive evropské legislativy, 1 což je zřejmé i ze skutečnosti, že v nedávné době bylo publikováno jen málo odborných textů zabývajících se touto tématikou, a to ať už z oblasti politických věd, nebo sociologie (např. Rodden 2002;Farrell, Scully 2007;Rose, Bernhagen, Borz 2012;Rose 2013;Haman 2017; z českých autorů Charvát 2015Charvát , 2018Charvát , 2019.…”