Econometrica: Jan 1976, Volume 44, Issue 1

Unite and Conquer: A Multiplicative Inequality for Choice Probabilities

https://doi.org/0012-9682(197601)44:1<79:UACAMI>2.0.CO;2-A
p. 79-89

Amos Tversky, Shmuel Sattath

Two probabilistic theories of choice behavior (the model of independent random utility and the model of elimination by aspects) imply a testable property, the multiplicative inequality, according to which the probability of selecting an alternative x from an offered set A @? B is at least as large as the product of the probabilities of selecting x from A and from B.

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