Italy’s revised electoral system

Italy’s general election will see the first use of the new “Rosatellum” election law which favours coalitions. Rosatellum mixes a first-past-the-post system and proportional representation

Seats awarded by first-past-the-post system
Proportional representation
Italians living abroad

Chamber of Deputies
232 386 12
630 seats

Senate
116 193 6
315 seats

Alliance that wins more than 40% of votes in proportional system will likely gain over 65% of first-past-the-post seats – and possible majority

Parties must win 3% of vote to gain seat. If part of coalition, votes below threshold are transferred to other parties

VOTE SHARES OF COALITIONS (FT poll tracker, February 4) 
Centre-right: Forza Italia (FI), Lega Nord (LN),
Brothers of Italy (FdI), Us with Italy (NcI) 37%
Five Star Movement (M5S) 28%
Centre-left: Democratic Party and others 28%
Left-wing alliance: Liberi e Uguali (LeU) 6%
Others 1%

Sources: Bloomberg, Financial Times, The Local