The Banzhaf power index is a measure used in voting systems to determine the relative power or influence of individual voters (or players) in decision-making processes. It quantifies how likely an individual voter is to be pivotal in determining the outcome of a vote—specifically, how often their vote can change a losing coalition into a winning one. Here's how the Banzhaf power index is typically calculated: 1. **Coalition Formation**: Consider all possible coalitions of voters.
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