Reform, repeal, replace: a case study of policy whiplash in New Zealand's health sector

The TPA policy cycle is a case study in the fragility of evidence-based health reform. It demonstrates that without a durable, cross-party political consensus, long-term policy projects are highly vulnerable to being dismantled by short-term shifts in political ideology, with downstream harms from regulatory instability. It also illustrates how a targeted "micro‑reform" can generate outsized system‑level consequences.