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 Ghana Progress Party (PP), led by Kofi Abrefa Busia, won parliamentary elections and he became Prime Minister on 1 October 1969. Busia's government was deposed in a military coup on 13 January 1972. A presidential system was instituted in 1979 when civilian rule was re-established. The post of Prime Minister was never revived. <br> Prime Minister of Ghana The Prime Minister of Ghana was the head of government of Ghana from 1957 to 1960 and again from 1969 to 1972. The country's first leader and Prime Minister was Kwame Nkrumah of the Convention People's Party (CPP). He held that post from