A New Quota Approach to Electoral Disproportionality
Metadatos
Mostrar el registro completo del ítemEditorial
MDPI
Materia
Electoral systems Proportionality Electoral quota Disproportionality indexes Measurement Spain Sweden Germany
Fecha
2019-03-05Referencia bibliográfica
Martínez-Panero, M.; Arredondo, V.; Peña, T.; Ramírez, V. A New Quota Approach to Electoral Disproportionality. Economies 2019, 7, 17. [doi:10.3390/economies7010017]
Patrocinador
We are grateful for the financial support of the Spanish Ministerio de Economía y Competitividad (project ECO2016-77900-P).Resumen
In this paper electoral disproportionality is split into two types: (1) Forced or unavoidable, due to the very nature of the apportionment problem; and (2) non-forced. While disproportionality indexes proposed in the literature do not distinguish between such components, we design an index, called “quota index”, just measuring avoidable disproportionality. Unlike the previous indexes, the new one can be zero in real situations. Furthermore, this index presents an interesting interpretation concerning transfers of seats. Properties of the quota index and relationships with some usual disproportionality indexes are analyzed. Finally, an empirical approach is undertaken for different countries and elections.