1921- . New Zealand National Party politician, prime minister 1975-84. A chartered accountant, he was minister of finance 1967-72, and in 1974 replaced John Marshall as leader of the National Party, after the latter had been criticized as insufficiently aggressive in opposition. He became prime minister in 1975 and pursued austere economic policies. He sought to introduce curbs on trade unions, and was a vigorous supporter of the Western alliance. He was defeated in the general election of 1984 and was succeeded as prime minister by the Labour Party's David Lange.