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
Helen Clark (British politician) Helen Clark (British politician) Helen Rosemary Clark, previously known as Helen Brinton, née Helen Rosemary Dyche, (b. 23 December 1954, Derby) is a politician in the United Kingdom. She was a Labour Member of Parliament for Peterborough from 1997 until the 2005 general election, when she lost her seat to Conservative Stewart Jackson. Clark went to Spondon Park Grammar School (became Spondon School in 1971 when merged with Spondon House School, and became West Park Community School in 1989) in Spondon, Derby. Clark was educated at the University of Bristol gaining a Hons 2/1 in English Literature, then an MA