Majority jackpot system

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).

[citation needed] Benito Mussolini was the first politician to enact a law to give automatic seats to the winning party and ensured his victory in the 1924 Italian general election.

The system was reintroduced for the 1953 Italian general election, in which any parliamentary coalition winning an absolute majority of votes would be awarded two-thirds of the seats in Parliament.

A similar plurality jackpot system, which awarded 55% of seats to the largest party, was introduced for local elections in 1993 and national ones in 2006 (replacing scorporo).

The rest of the seats are distributed among the other parties, unlike the majority bonus system, which would not take them into account (like parallel voting).