Voting Power

Seats aren’t the same as influence

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• A party is critical when its departure turns a winning coalition into a losing one.
• Banzhaf power counts critical appearances; it can differ wildly from seat share.
• Some voters can hold seats but no power at all (dummies).

Steps

1. Who really decides?
2. A small party
3. Change the quota
4. Luxembourg, 1958
5. Banzhaf power
6. Equal power