Papua New Guinea, a constitutional monarchy, recognizes the Queen of England as head of state. She is represented by a Governor General who is elected by Parliament and who performs mainly ceremonial functions. Papua New Guinea has three levels of government–national, provincial, and local. There is a 109-member unicameral Parliament, whose members are elected every 5 years. The Parliament in turn elects the prime minister, who appoints his cabinet from members of his party or coalition.

Members of Parliament are elected from 19 provinces and the national capital district of Port Moresby. Parliament introduced reforms in June 1995 to change the provincial government system, with regional (at-large) members of Parliament becoming provincial governors, while retaining their national seats in Parliament.

Papua New Guinea’s judiciary is independent of the government. It protects constitutional rights and interprets the laws. There are several levels, culminating in the Supreme Court.

Papua New Guinea’s politics are highly competitive with most members elected on a personal and ethnic basis within their constituencies rather than as a result of party affiliation. Members of Parliament have been are elected on a “first past the post” system, with winners frequently gaining less than 15% of the vote. There are several parties, but party allegiances are not strong. Winning candidates are usually courted in efforts to forge the majority needed to form a government, and allegiances are fluid.

No single party has yet won enough seats to form a government in its own right. As the majority of Parliamentarians do not retain their seats (75% lost in 2002), party structure is weak and national leadership is not stable. The current government was formed by a coalition of several parties after the 2002 election in which virtually the entire previous cabinet lost their seats. Sir Michael Somare, the leader of the Melanesian Alliance (and the nation’s first Prime Minister in 1975), was elected Prime Minister.