Acronyms that contain the term mixed-member proportional representation 

Mixed-member proportional representation

Mixed-member proportional representation, also termed mixed-member proportional voting and commonly abbreviated to MMP, is a voting system originally used to elect representatives to the German Bundestag, and which has now been adopted by numerous legislatures around the world. MMP is similar to other forms of proportional representation in that the overall total of party members in the elected body is intended to mirror the overall proportion of votes received; it differs by including a set of members elected by geographic constituency who are deducted from the party totals so as to maintain overall proportionality. MMP is similar to the additional member system used in some parts of the United Kingdom, which has no overhang seats or balance seats and consequently is not perfectly proportional. In Germany, where it is used on the federal level and on most state levels, MMP is known as personalized proportional representation. In Quebec, where an MMP model was studied in 2007, it is called the compensatory mixed-member voting system.

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