Mixed-Member Proportional (MMP)

The Mixed Member Proportional system is - as its name suggests - a form of Proportional Representation. It is also referred to as the Additional Member System (AMS), and is used in Germany and New Zealand.

MMP is an option which retains the one-MP-to-one-constituency link, while using top-up lists to ensure that no parties receiving a significant share of the popular vote overall is excluded from Parliament.

- See more at: https://joe-sousek.squarespace.com/voting-systems#sthash.2gjpaHZ3.dpuf