The UK uses First-Past-The-Post (FPTP) in general and local elections, whereas Proportional Representation (PR) is used in some other elections (e.g., European Parliament).
First Past the Post (FPTP)
650 constituencies each elect one MP.
Voters choose one candidate on the ballot.
The candidate with the most votes wins, even without a majority.
Strengths of FPTP
✔ Simple and cheap to run.
✔ Quick results after voting closes.
✔ Creates stable, single-party governments.
Weaknesses of FPTP
✘ Only the winning votes count; other votes are wasted.
✘ Encourages tactical voting if a preferred candidate is unlikely to win.
✘ Many seats become "safe seats," discouraging voter participation.
Proportional Representation (PR)
Seats awarded based on the percentage of votes a party wins.
Parties submit lists of candidates.
Seats are allocated based on party popularity.
Strengths of PR
✔ Fewer wasted votes.
✔ More voter choice.
✔ Fairer for smaller parties.
Weaknesses of PR
✘ Leads to coalition governments.
✘ MPs may not be linked to a constituency.
✘ Can allow extremist parties into Parliament.
Explain two criticisms of FPTP.
candidates can be elected on little public support, as a candidate needs to get the most votes, not a majority of votes. Therefore the majority of a constituency might have voted for other candidates.
votes can be wasted if a voter lives in a safe seat but prefers a different candidate or party then it is likely their vote will not have an effect on the election or give them any representation.