Borda count

The Borda count is a voting system used for single-winner elections in which each voter rank-orders the candidates.

Effect on factions and candidates

The Borda count is vulnerable to teaming: when more candidates run with similar ideologies, the probability of one of those candidates winning increases. Therefore, under the Borda count, it is to a faction's advantage to run as many candidates in that faction as they can, creating the opposite of the spoiler effect. The teaming or "clone" effect is significant where restrictions are placed on the candidate set.

Related Topics:
Teaming - Spoiler effect

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On the other hand, in 1980, William Gehrlein and Peter Fishburn investigated the likelihood of a positional method to choose the same candidate when one modified the set of candidates by eliminating one losing candidate from a three-candidate election and two losing candidates from a four candidate election. They found that the Borda count was the positional rule which maximizes the probability of electing the same candidate after this modification of the choice set.

Related Topics:
William Gehrlein - Peter Fishburn

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