A Method for Evaluating the Distribution of Power in a Committee System

Shapley, L. S., & Shubik, M. (1954). A Method for Evaluating the Distribution of Power in a Committee System. American Political Science Review, 48(3), 787-792.

Type

Journal article

Intellectual base

Primary research

Year

1954

DOI

10.2307/1951053

Link

https://doi.org/10.2307/1951053

Cited from

economics_finance

Cited by

2 citations across 2 artifacts.

Each citation links to the sentence it supports in the citing article.

Primes

• Pivotality
  • In voting and social choice, the Banzhaf and Shapley-Shubik power indices measure pivotality — the probability of being pivotal across coalitions — as the operative metric of power in weighted-voting systems, with small pivotal parties in coalition governments illustrating the leverage.

    This sourceDefines the Shapley-Shubik index measuring a member's probability of being pivotal across orderings of coalition formation.

Domain-specific

• Shapley–Shubik power index
  • The index assumes equiprobable voter orderings rather than observed coalition formation, weighted vote share need not equal power and quota or coalition restrictions change results.

Verification

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