New Zealand uses proportional representation. It held a parliamentary election on September 23, 2017. The results: National 56 seats, Labour 46, New Zealand First 9, Green 8, ACT 1. No party received a majority of the seats. On October 19, after intense negotiations, it was announced that the Labour Party would receive the support of the New Zealand First and Green Parties, to create a majority.
The ACT Party name means “Association of Consumers and Taxpayers” and is considered to be a free-market party.
Here is the wikipedia page about the election.