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A Representation Theorem for Finite Best-Worst Random Utility Models (2008.09782v3)
Published 22 Aug 2020 in math.OC and math.PR
Abstract: This paper investigates best-worst choice probabilities (picking the best and the worst alternative from an offered set). It is shown that non-negativity of best-worst Block-Marschak polynomials is necessary and sufficient for the existence of a random utility representation. The representation theorem is obtained by extending proof techniques employed by Falmagne (1978) for a corresponding result on best choices (picking the best alternative from an offered set).
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