
New Zealand is a
constitutional monarchy with a parliamentary democracy. Although it has no codified constitution, the Constitution Act 1986 is the principal formal statement of New Zealand's constitutional structure. The constitution has been described as "largely unwritten" and a "mixture of statutes and constitutional convention." Queen Elizabeth II is the head of state and is titled Queen of New Zealand under the Royal Titles Act 1974. She is represented by the Governor-General, whom she appoints on the exclusive advice of the Prime Minister. The current Governor-General is Anand Satyanand.
The
Governor-General exercises the Crown's prerogative powers, such as the power to appoint and dismiss ministers and to dissolve Parliament, and in rare situations, the reserve powers. The Governor-General also chairs the Executive Council, which is a formal committee consisting of all ministers of the Crown. The main constitutional function of the governor-general is to "arrange for the leader of the majority political party to form a government"; by constitutional convention, the governor-general "acts on the advice of ministers who have majority support in parliament."

Members of the Executive Council are required to be Members of Parliament, and most are also in Cabinet. Cabinet is the most senior policy-making body and is led by the Prime Minister, who is also, by convention, the Parliamentary leader of the governing party or coalition. This is the highest policymaking body in the government.
The New Zealand Parliament has only
one chamber, the
House of Representatives, which usually seats 120 Members of Parliament.
Parliamentary general elections are held every three years under a form of proportional representation called Mixed Member Proportional. The Economist magazine explains: "Under MMP (Mixed Member Proportional) there is usually a 120-seat parliament; an extra seat can sometimes be added to ensure truly proportional representation. Of the total number of seats, 65 electorate (directly elected constituency) seats are contested on the old first-past-the-post basis, including seven seats reserved for the indigenous Māori people. The remaining 55 or so seats are allocated so that representation in parliament reflects overall support for each party (the party vote).
Read more about politics of New Zealand on
wiki or
participate on democracy in New Zealand on
Election(s)Meter - online voting polls.
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