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Maurice Duverger's Law Essay

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Duverger’s Law
The theory promoted by sociologist Maurice Duverger that the electoral system/process determines the number of parties in that system. It is commonly applied to show that proportional representation (multi-member district) leads to multiparty systems while winner-take-all/first-past-the-post (single-member district) leads to a two-party system.

Filibuster
A strategic move that can be employed by U.S. Senators whereby a pending bill can be prevented from being voted on through endless debate on the senate floor. The practice is often referred to as “talking a bill to death” and it can only be overcome through cloture, requiring a 3/5 vote of the Senate.

Gerrymandering
The legislative practice of manipulating and redrawing districts so as to obtain a certain electoral constituency. This is a partisan tactic often used to secure the election or reelection of party candidates. …show more content…

Political donors tend to more heavily support the incumbent candidate and the incumbent candidate has greater resources at his/her disposal to almost ensure reelection.

Electoral College
The anomalous system in the United States under which presidential election take place. Rather than the presidential candidates being elected by popular vote, in the Electoral College, each state is allocated a certain number of electors who actually submit votes. The number of electors is equivalent to the number of members a state has in congress (representatives in House + two Senators).

Electoral Threshold
The minimum percentage of votes that a party must obtain, in a multiparty system, for it to get seats in parliament. A lower threshold promotes more representation (but perhaps less stability), while a higher threshold promotes greater stability but perhaps limits

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