NZ MMP Parliamentary Coalition & Kingmaker Simulator

Parliamentary Seat Arch Minority Coalition

Needed: 62 / 122

Select parties on the right to construct a government coalition. The 61/62 seat threshold defines parliamentary control.

Coalition Cabinet Alignment

Click parties to add or remove them from the proposed coalition:

Party	Seats	Banzhaf Index	Shapley-Shubik	Kingmaker?

MMP Electoral Lab: Seat Customization & Thresholds

Export computed coalition mathematical properties, power indices, and seat states.

Live Canonical Proof Metric Surface