The relationship between Luce's choice axiom, Thurstone's theory of comparitive judgment, and the double exponential distribution.

Author(s)
Yellot, J.I.
Year
Abstract

Holman and Marley have shown that Thurstone's Case V model becomes equivalent to the Choice Axiom if its discriminal processes are assumed to be independent double exponential random variables instead of normal ones. It is shown here that for pair comparisons, this representation is not unique; other discriminal process distributions (specifiable only in terms of their characteristic functions) also yield a model equivalent to the Choice Axiom. However, none of these models is equivalent to the Choice Axiom for triple comparisons: There the double exponential representation is unique. It is also shown that within the framework of Thurstone's theory, the double exponential distribution, and hence the Choice Axiom, is implied by a weaker assumption, called "invariance under uniform expansions of the choice set." (Author/publisher)

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Publication

Library number
930087 ST [electronic version only]
Source

Journal of Mathematical Psychology, Vol. 15 (1977), p. 109-144, 19 ref.

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