Many readers probably can not recall Fortress NZ. The mini-series captures the changes:
Documentary series Revolution mapped the social and economic changes in New Zealand society in the 1980s and early 1990s. This first episode focuses on NZ’s radical transformation from a heavily regulated welfare state to a petri dish for free market ideology. It includes interviews with key political and business figures of the day, who reveal how the dire economic situation by the end of Robert Muldoon’s reign made it relatively easy for Roger Douglas to implement extreme reform. Revolution won Best Factual Series at the 1997 Film and TV Awards.
I don’t think Roger’s reforms were that extreme. Most of the world has now done them. He was just leading the pack.