Disadvantages of PR systems —

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You are here: Home → Encyclopaedia → Topic Areas → Electoral Systems → The Systems and Their Consequences → Proportional Representation (PR) → Disadvantages of PR systems

Electoral Systems

Topic IndexDisadvantages of PR systems

Most of the criticisms of PR in general are based around the tendency of PR systems to give rise to coalition governments and a fragmented party system. The arguments most often cited against PR are that it leads to:

Coalition governments, which in turn lead to legislative gridlock and consequent inability to carry out coherent policies. There are particularly high risks during an immediate post-conflict transition period, when popular expectations of new governments are high. Quick and coherent decision making can be impeded by coalition cabinets and governments of national unity which are split by factions.
A destabilizing fragmentation of the party system. PR can reflect and facilitate a fragmentation of the party system. It is possible that extreme pluralism can allow tiny minority parties to hold larger parties to ransom in coalition negotiations. In this respect, the inclusiveness of PR is cited as a drawback of the system. In Israel, for example, extremist religious parties are often crucial to the formation of a government, while Italy endured many years of unstable shifting coalition governments. Democratizing countries are often fearful that PR will allow personality-based and ethnic-cleavage parties to proliferate in their undeveloped party systems.
A platform for extremist parties. In a related argument, PR systems are often criticized for giving a space in the legislature to extremist parties of the left or the right. It has been argued that the collapse of Weimar Germany was in part due to the way in which its PR electoral system gave a toehold to extremist groups of the extreme left and right.
Governing coalitions which have insufficient common ground in terms of either their policies or their support base. These coalitions of convenience are sometimes contrasted with coalitions of commitment produced by other systems (e.g. through the use of AV), in which parties tend to be reciprocally dependent on the votes of supporters of other parties for their election, and the coalition may thus be stronger.
Small parties getting a disproportionately large amount of power. Large parties may be forced to form coalitions with much smaller parties, giving a party that has the support of only a small percentage of the votes the power to veto any proposal that comes from the larger parties.
The inability of the voter to enforce accountability by throwing a party out of power or a particular candidate out of office. Under a PR system, it may be very difficult to remove a reasonably-sized centre party from power. When governments are usually coalitions, some political parties are everpresent in government, despite weak electoral performances from time to time. The Free Democratic Party (FDP) in Germany was a member of the governing coalition for all but eight of the 50 years from 1949 to 1998, although it never gained more than 12 per cent of the vote.
Difficulties either for voters to understand or for the electoral administration to implement the sometimes complex rules of the system. Some PR systems are considered to be more difficult than non-PR systems and may require more voter education and training of poll workers to work successfully.

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