Abstract
In this Chapter we consider the utility maximization models within a threshold in which the threshold function depends on both compared alternatives, i.e., has the form ε(x, y). In Section 4.2 it is shown that any pair-dominant function can be rationalized by utility maximization with such a threshold function. Then we formulate sufficient and/or necessary conditions on the function ε(x, y) in order that the corresponding binary relation satisfies acyclicity, transitivity, negative transitivity or the strong intervality condition. In Section 4.3 we study the case when the threshold function ε(x, y) additively depends on the thresholds of the separate alternatives, i.e., ε(x, y) = δ(x) + δ(y). It is shown that the corresponding binary relations are either a biorder or an interval order. In Section 4.4 the case of multiplicative threshold function is considered, i.e., the case when ε(x, y) = δ(x)δ(y). Moreover, we assume that the threshold function δ depends on the utility value of the alternative in a special way: δ(x) = α(x) β , α > 0, β ∈ ℝ. It is shown that in all cases the corresponding binary relation is an interval order. However, when β ∈ [0, 1] a stronger statement can be made, namely, that the corresponding relation is a semiorder.
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© 2002 Springer-Verlag Berlin Heidelberg
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Aleskerov, F., Monjardet, B. (2002). Utility Maximization Within a Threshold Depending on Both Compared Alternatives. In: Utility Maximization, Choice and Preference. Studies in Economic Theory, vol 16. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04992-1_4
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DOI: https://doi.org/10.1007/978-3-662-04992-1_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-04994-5
Online ISBN: 978-3-662-04992-1
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