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Decision theoretic foundations for axioms of rational preference

✍ Scribed by Sven Ove Hansson

Publisher
Springer Netherlands
Year
1996
Tongue
English
Weight
692 KB
Volume
109
Category
Article
ISSN
0039-7857

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✦ Synopsis

Rationality postulates for preferences are developed from two basic decision theoretic principles, namely: (1) the logic of preference is determined by paradigmatic cases in which preferences are choice-guiding, and (2) excessive comparison costs should be avoided. It is shown how the logical requirements on preferences depend on the structure of comparison costs. The preference postulates necessary for choice guidance in a single decision problem are much weaker than completeness and transitivity. Stronger postulates, such as completeness and transitivity, can be derived under the further assumption that the original preference relation should also be capable of guiding choice after any restriction of the original set of alternatives.

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