Dual Member Proportional (DMP)
What is the Dual Member Proportional voting system?
In Dual Member Proportional (DMP), most electoral districts are combined with a neighbouring district and represented by two Members of the Legislative Assembly (MLAs). The largest rural districts continue to have one MLA elected by getting the most votes. The graphic below illustrates how districts would be combined in an example jurisdiction.
In two-MLA districts, parties can have one or two candidates on the ballot. Parties decide which of their candidates is listed first on the ballot and which is listed second, shown on the example ballot below as “primary candidate” and “secondary candidate”. Voters vote for a candidate or pair of candidates by marking the ballot once.
The first seat in a district is won by the candidate with the most votes. For parties that run two candidates, this seat is filled by the candidate the party listed first on the ballot.
Second seats go to parties so that each party’s share of seats in the legislature roughly matches its share of the province-wide popular vote. A party’s second seats are filled in districts where its candidates did particularly well. Parties need at least five percent of the vote to get any second seats.
DMP was recently developed in Canada and is not currently in use.
Characteristics of Dual Member Proportional (DMP)
|Counting||Urban and Semi-Urban Districts
Large Rural Districts