Designing Electoral Systems
The principles and trade-offs involved in choosing or designing an electoral system for a new or reforming democracy.
What Do We Want From an Electoral System?
Electoral system design involves balancing multiple, often competing goals. Proportionality means seats should reflect votes. Accountability means voters should be able to identify and reward or punish their representative. Governability means the system should produce stable governments that can act effectively. Simplicity means voters should understand how their vote translates into outcomes. Inclusiveness means the system should represent the diversity of the electorate.
No system optimizes all goals simultaneously. Pure proportionality can produce fragmented, ungovernable legislatures. Maximum accountability (single-member districts with FPTP) can produce wildly disproportional outcomes. The design challenge is to identify which values matter most for a given society and choose a system that best balances them.