Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Decision sciences
17 (1986), S. 0
ISSN:
1540-5915
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Economics
Notes:
Various consensus methods proposed for ranking problems yield controversial rankings and/or tied rankings which are vulnerable to considerable dispute. These include Borda-Kendall (BK) and minimum-variance (MV) methods. This paper compares three continuous (ratio-scale) consensus scoring methods with BK and MV ranking methods. One method, termed GM, is an eigenvector scaling of the geometric-mean consensus matrix. GM allows for (1) paired-comparison voting inputs (as opposed to all-at-once ranking), (2) pick-the-winner preference voting, and (3) ratio-scale preference voting. GM is relatively simple to calculate on small computers or calculators, and merging of “close” candidates into tied rankings can be achieved by using an e-threshold tie rule discussed in this paper. The GM method thus can be used for paired-comparison voting to calculate both a ratio-scaled consensus index (based on a consensus eigenvector) and a ranking of candidates that allows for ties between “close” candidates. Eigenvalue analysis is used as a means of evaluating voter inconsistencies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1540-5915.1986.tb00221.x
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