Dual Member Proportional Representation A PR system proposed by Sean Graham

Dual Member Proportional Representation Each riding has two seats Parties can nominate two candidates in each riding. Voters vote for the party of their choice. If a party receives the most votes in a riding their primary candidate (the first listed) will be elected. The second seat in each riding will be filled according to proportional representation principles.

Ballot - Vote for one option Jeanne might win the second riding seat. James Cook Alice Lake Liberal Party x Cory Reid Jeanne Scott Conservative Party Mary Gregory John Wong NDP Amy King Gary Young Green Party Justin White Independent

How do you achieve Proportional Representation? . How do you achieve Proportional Representation? The first step is to decide how many seats each party should get.

Simulation of the NL 2015 Election Let’s use a simulation of the 2015 NL provincial election Simulation of the NL 2015 Election The 40 ridings are collapsed into 20 ridings each with 2 seats. 20 seats are given to the parties that scored the highest in each riding 20 seats are reserved to create proportional representation. Liberals Conservatives NDP FPTP Elected The First 20 Seats won on the ballot 17 seats 3 seats 0 seats 57.7% 30.4% 11.94% 23.1 seats 12.1 seats 4.8 seats 6 9 5 % of Vote PR Seats 20 extra Seats

The second step Parties calculate what percentage of the vote they got in each riding. Each party then ranks the ridings according to the percentage of votes they received. An algorithm is used to assign each party the seats they deserve in the ridings where they got the highest percentage of votes. Parties that have already elected an MHA in a particular riding divide their party’s percentage of the riding vote in half so that it doesn’t get counted twice.

Conservative Ranking by District Liberals = 6 Seats Conservatives = 9 Seats NDP = 5 Seats Conservative Ranking by District Riding % of Vote 12 43.2% 8 43 % 11 38.5% 14 36 % 7 33.7% 9 32.7% 6 25.5% 5 25 % 3 23.6% 15 23 % 4 22.2% 18 21.8% Elected 1 Lib 2 Lib 5 Cons 6 Cons 9 Lib 3 Lib 4 Cons 8 Lib 7 Lib 10 Lib NDP Lib Con Lib Con 11 Lib 12 Lib 15 Lib 16 Lib 19 Lib 13 Lib 14 Lib 18 Lib 17 Lib 20 Lib Newfoundland and Labrador Simulation

Just like First-past-the-Post What’s to remember? Ridings are twice as large but you have two MHAs, usually from different parties. The first seat in each riding is given to the leading candidate of the party who gets the most votes. You’ve now elected half your MHAs. (in the case of our province that would be 20 seats) Just like First-past-the-Post

The Proportional Representation Process Figure out how many seats each party should get to achieve PR. Each party ranks their ridings. An algorithm is used to match each extra party’s extra seats with the ridings where the party got the highest voter turnout. Around 15% of ridings will end up assigning the second seat to a party that did not rank second in the riding votes.

What are the advantages of Duel Member Proportional Representation? DMP achieves a higher level of proportionality than most other PR systems. The integrity of geographical ridings is largely maintained. All MHAs are attached to a riding There are advantages to having two MHAs to call upon.

Disadvantages of Dual Member Proportional Representation Dual Member Proportional Representation requires the collapse of two ridings into one. However,there will be two MHAs elected from each riding. The procedure for assigning the second seat can seem complicated. However the ballot is simple to understand.