The New Zealand electoral system has been mixed-member proportional (MMP) since the 1996 election. MMP was introduced following a referendum in 1993. It replaced the first-past-the-post (FPP) system New Zealand had previously used for most of its history. New Zealanders elect their members of parliament (MPs) with two votes. The first vote is for a candidate from an electorate (electoral district). The second vote is used to elect ranked party lists.