6.11 Advantages of delimiting electoral districts (3)

  1. Electoral districts would permit the use of an open party list (Open-list proportional representation systems) – difficult to manage administratively with a single national constituency, because of too many candidates (e.g. 460 in Polish lower house election)

However, the most compelling argument against delimitation is that a constituency-based system can produce substantial electoral disproportionality - in PR systems, the decrease in district magnitudes elicits the rise in electoral disproportionality.