A research repository is a place to store an instututions intellectual research outputs. Try searching these sites to find research on the NZ government:
Research documents produced at universities, polytechnics, and other research institutions throughout New Zealand; fomerly KRIS (Kiwi Research Information Service)
SSRN's objective is to provide worldwide distribution of research to authors and their readers. Any paper an author uploads to SSRN is downloadable for free, worldwide. The Political Science Network includes research papers, conference proceedings and a professional directory.
A discovery service that includes research from Australian university and government research repositories. Includes: including theses; preprints; postprints; journal articles; book chapters; music recordings and pictures.
Theses & Dissertations
There are several databases that can be used to find dissertations and theses on government :