While the List PR system is based on the principle that parties or political groupings present candidates, it is possible to give voters a degree of choice within List PR between the candidates nominated as well as between the parties. There are essentially three options that can be chosen—open, closed, and free lists.
The majority of List PR systems in the world are closed, meaning that the order of candidates elected by that list is fixed by the party itself, and voters are not able to express a preference for a particular candidate. The List PR system used in South Africa is a good example of a closed list. The ballot paper contains the party names and symbols, and a photograph of the party leader, but no names of individual candidates. Voters simply choose the party they prefer; the individual candidates elected as a result are predetermined by the parties themselves. This means that parties can include some candidates (perhaps members of minority ethnic and linguistic groups, or women) who might have difficulty getting elected otherwise. The negative aspect of closed lists is that voters have no say in determining who the representative of their party will be. Closed lists are also unresponsive to rapid changes in events. In East Germany’s pre-unification elections of 1990, the top-ranked candidate of one party was exposed as a secret-police informer only four days before the election, and immediately expelled from the party; but because lists were closed, electors had no choice but to vote for him if they wanted to support his former party.
Many List PR systems in Western Europe use open lists, in which voters can indicate not just their favoured party but their favoured candidate within that party. In most of these systems, the vote for a candidate as well as a party is optional and, because most voters mark their ballots for parties only rather than candidates, the candidate-choice option of the ballot paper often has limited effect. However, in Sweden, over 25 per cent of the voters regularly choose a candidate as well as a party, and a number of individuals are elected who would not be if the list were closed.
In Brazil and Finland, voters must vote for candidates: the number of seats received by each party is determined by the total number of votes gained by its candidates, and the order in which the party’s candidates are elected to these seats is determined by the number of individual votes they receive. While this gives voters much greater freedom over their choice of candidate, it also has some less desirable side effects. Because candidates from within the same party are effectively competing with each other for votes, this form of open list can lead to internal party conflict and fragmentation. It also means that the potential benefits to the party of having lists which feature a diverse slate of candidates can be overturned. In open-list PR elections in Sri Lanka, for example, the attempts of major Sinhalese parties to include minority Tamil candidates in winnable positions on their party lists have been rendered ineffective because many voters deliberately voted for lower-placed Sinhalese candidates instead. In Kosovo, a switch from closed to open lists actually enhanced the presence of more extremist candidates. On the same note, open lists have sometimes proved to be disadvantageous for the representation of women in highly patriarchal societies, although in Poland voters have shown themselves willing to use open list to elect more women than would have resulted from the nominations made by the parties if closed lists had been used.
Other devices are used in a small number of jurisdictions to add additional flexibility to open-list systems. In Ecuador, Luxembourg and Switzerland, electors have as many votes as there are seats to be filled and can distribute them to candidates either within a single party list or across several party lists as they see fit. The capacity to vote for more than one candidate across different party lists (known as panachage) or to cast more than one vote for a single highly favoured candidate (known as cumulation) both provide an additional measure of control to the voter and are categorized here as free list systems.
