Editing Electoral threshold (section)

{{short description|Vote share required for representation}}
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The '''electoral threshold''', or '''election threshold''', is the minimum share of votes that a candidate or political party requires before they become entitled to representation or additional seats in a [[legislature]]. 

This limit can operate in various ways; for example, in [[party-list proportional representation]] systems where an electoral threshold requires that a party must receive a specified minimum percentage of votes (e.g. 5%), either nationally or in a particular electoral district, to obtain seats in the legislature. In [[single transferable voting]], the election threshold is called the quota, and it is possible to achieve it by receiving first-choice votes alone or by a combination of first-choice votes and votes transferred from other candidates based on lower preferences. 

In mixed-member-proportional (MMP) systems, the election threshold determines which parties are eligible for top-up seats in the legislative chamber. Some MMP systems still allow a party to retain the seats they won in electoral districts even when they did not meet the threshold nationally; in some of these systems, top-up seats are allocated to parties that do not achieve the electoral threshold if they have won at least one district seat or have met some other minimum qualification.

The effect of this electoral threshold is to deny representation to small parties or to force them into coalitions. Such restraint is intended to make the election system more stable by keeping out fringe parties. Proponents of a stiff electoral threshold say that having a few seats in a legislature can significantly boost the profile of a party and that providing representation and possibly veto power for a party that receives only 1 percent of the vote is not appropriate.<ref name="Reynolds 2005 p.59">{{cite book | last=Reynolds | first=Andrew | title=Electoral system design : the new international IDEA handbook | publisher=International Institute for Democracy and Electoral Assistance | publication-place=Stockholm, Sweden | year=2005 | isbn=978-91-85391-18-9 | oclc=68966125 | page=59}}</ref> However, others argue that in the absence of a [[ranked ballot]] or proportional voting system at the district level, supporters of minor parties, barred from top-up seats, are effectively disenfranchised and denied the right to be represented by someone of their choosing.

Two boundaries can be defined{{Snd}}a threshold of representation is the minimum vote share that might yield a party a seat under the most favorable circumstances for the party, while the threshold of exclusion is the maximum vote share that could be insufficient to yield a seat under the least favorable circumstances. [[Arend Lijphart]] suggested calculating the informal threshold as the mean of these.<ref>Arend Lijphart (1994), ''Electoral Systems and Party Systems: A Study of Twenty-Seven Democracies, 1945–1990.'' Oxford: Oxford University Press. pp. 25–56</ref>

The electoral threshold is a [[barrier to entry]] for [[political parties]] to the political competition.<ref>[http://www.jstor.org/stable/1816288 Tullock, Gordon. "Entry barriers in politics." The American Economic Review 55.1/2 (1965): 458-466.]</ref>