Majority jackpot system

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The majority jackpot system (MJS), also known as a majority-minority apportionment, is a mixed-member majoritarian and conditional voting rule.^[1] It produces subproportional representation by fixing the final apportionment for a party or alliance that wins a majority of the vote at some level (e.g. 55% of the seats). It differs from the similar majority bonus system in that the total number of seats is fixed, whereas the majority bonus assigns a fixed number of "bonus" seats to the majority party.

It is currently used in Armenia and San Marino, and was previously used in Italy from 2006 to 2013.^{[citation needed]}

An example of a very small, almost insignificant majority jackpot type correction system is found in Germany's electoral system for the Bundestag. If a party receives more than half of the list votes, but does not receive more than half of total seats (for example, as a result of the apportionment formula), they receive as many seats as necessary, which are added to the size of the Bundestag.^[2]