Parties can put forward as many
candidates as there are seats to fill in
each constituency
Electors vote by ranking candidates in order of preference
Don't have to vote for all
To get elected, the candidate needs to recieve a certain quota
Droop Quota - total number of votes
cast/(number of seats to be filled + 1) +1
Example - if 100,000 people voted in a constituency of
Northern Ireland the quota would be 100,000/6+1 +1 =
14,281 needed to be elected
Votes are counted by first choice
Once a candidate has gained the quota, any surplus votes are
transferred to second placed candidates and so on
This is repeated each time a candidate gains enough votes to be elected
If a candidate recieves insufficient first choice votes and is eliminated, all the votes for
that candidate are redistributed to the second-placed candidate on the ballot
Proportional Representation
Advantages
Gives the electorate choice between
candidates as well as parties
Competition between candidates from the same
party means candidates can be judged on their
own merits and records rather than by party
Multi-member constituencies encourage power
sharing
Far fewer wasted votes
Greater diversity among elected representatives
Results in multi-party system
Disadvantages
Degree of proportionality can vary
Single party government unlikely
Can be disruptive as it encourages
competition amongst members of the
same party
While voting is straightforward, counting is
complex and can take a long time