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Political Science · Ch 3 — Election and Representation

Proportional Representation

3.2

Proportional Representation

Proportional Representation (PR) starts from a completely different idea: instead of voting for an individual candidate in a small constituency, voters vote for a party, and each party is then given a share of the seats in the legislature that matches its share of the vote as closely as possible. A party fills its allotted seats using a list of candidates it has already declared before the election, in the order of that list, rather than voters choosing a single named person.

Israel is the standard example. It elects its 120-member parliament, the Knesset, entirely by PR, treating the whole country as one single constituency — any party that clears a minimum threshold of 3.25% of the national vote earns a proportional share of all 120 seats. The 2015 Knesset election shows the pattern clearly:

Party (list)% of votesSeats won
Likud23.4030
Zionist Camp18.6724
Joint List10.6113
Yesh Atid8.8211
Kulanu7.4910
Habayit Hayehudi6.748
Shas5.747
Yisrael Beitenu5.106
United Torah Judaism4.996
Israel's Left3.935
Other Parties4.510
Total100120

Notice how closely each party's seat share tracks its vote share — very different from the 1984 Lok Sabha table above — and how a party with a genuinely small vote share (Israel's Left, under 4%) still wins real seats, something FPTP would very likely deny it. Because no single party comes close to a majority of 61 seats on its own, Israeli governments are almost always multi-party coalitions.

PR itself comes in variants. One version, used in Israel and the Netherlands, treats the entire country as a single constituency. A second version, used in countries like Argentina and Portugal, divides the country into several multi-member constituencies, with parties fielding a ranked list of candidates in each. Either way, more than one representative can come out of the same constituency, and — because seats are awarded to parties rather than individuals — voters give up the idea of "my own MP for my own area" that FPTP provides.

FPTP compared with PR

FPTPPR
Country divided into small constituenciesLarge areas, or the whole country, form one constituency
Each constituency elects one representativeMore than one representative may come from one constituency
Voter votes for a candidateVoter votes for a party
A party's seat share can exceed its vote shareEvery party's seat share matches its vote share
Winner may not have a majority (50%+1) of votesWinner has a majority of votes overall
Examples: UK, IndiaExamples: Israel, Netherlands