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Story: Strikes and labour disputes

Percentage of union members in the workforce

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Percentage of union members in the workforce

The percentage of the New Zealand workforce who belonged to a trade union increased suddenly after 1936, when it became compulsory for an employee to join a union where one existed in their industry. When compulsory membership was abolished in 1991, the percentage dropped just as sharply, and stabilised about 10 years later.

Using this item

Te Ara – The Encyclopedia of New Zealand

Source: Statistics New Zealand; Department of Labour

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How to cite this page

Mark Derby, Strikes and labour disputes – Legislation from the 1990s, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/graph/20514/percentage-of-union-members-in-the-workforce (accessed 4 June 2026).

Story by Mark Derby, published 13 May 2010, updated 1 March 2016.