Prime Minister of New Zealand signed a number of international treaties. In 1967, Keith Holyoake became the first New Zealand prime minister to select candidates for the position of governor-general without any involvement of the British government. Holyoake advised the monarch, Queen Elizabeth II, to appoint Sir Arthur Porritt, the first New Zealand–born governor-general. After the mixed-member proportional (MMP) system was introduced in 1996, prime ministers have had to manage minority governments. The skill of MMP management was exemplified by Helen Clark's nine years as prime minister (1999–2008), when her Labour Party remained in power thanks to a range of confidence and supply agreements with
Prime Minister of Australia the governing party or senior coalition party elects an alternative party leader. This has resulted in the party leaders from the Country Party (now named National Party) being appointed as Prime Minister, despite being the smaller party of their coalition. This occurred when Earle Page became caretaker Prime Minister following the death of Joseph Lyons in 1939, and when John McEwen became caretaker Prime Minister following the disappearance of Harold Holt in 1967. However in 1941, Arthur Fadden became the leader of the Coalition and subsequently Prime Minister by the agreement of both coalition parties, despite being the leader of