Catherine Bregou

Bounding Consideration Probabilities in Consider-Then-Choose Ranking Models

Ben Aoki-Sherwood, Catherine Bregou, David Liben‐Nowell, Kiran Tomlinson et autres

A common theory of choice posits that individuals make choices in two steps, first selecting a subset of the alternatives to consider before making a choice from the resulting consideration set. However, inferring unobserved consideration sets (or item consideration probabilities) in this …

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When the Universe is Too Big: Bounding Consideration Probabilities for Plackett-Luce Rankings

Ben Aoki-Sherwood, Catherine Bregou, David Liben‐Nowell, Kiran Tomlinson et autres

The widely used Plackett-Luce ranking model assumes that individuals rank items by making repeated choices from a universe of items. But in many cases the universe is too big for people to plausibly consider all options. In the choice literature, this issue …