Revealed preference domains from random choice

• 成果类型: Article
• 署名作者: Valkanova, Kremena
• 署名单位: Swiss Federal Institutes of Technology Domain; ETH Zurich
• 刊物名称: GAMES AND ECONOMIC BEHAVIOR
• ISSN/ISSBN: 0899-8256
• DOI: 10.1016/j.geb.2024.08.001
• 发表日期: 2024
• 页码: 288-304
• 关键词: Random utility model; stochastic choice; single-peaked preferences; Single-dipped preferences; Value-restriction

摘要

Ordinal random utility models (RUMs) are based on the presumption that fluctuating preferences drive stochastic choices. We study a novel property of RUM subclasses called exclusiveness, satisfied whenever the supports of all RUM representations of stochastic choice data, rationalizable by a RUM over preferences within a specific domain, also belong to that domain. We demonstrate that well-known preference domains such as the single-peaked, single-dipped, triple-wise value- restricted and peak-monotone are RUM-exclusive, alongside a novel domain we term peak-pit on a line. Building on existing characterization results, we show how these preference domains can be directly revealed from stochastic choice data, without the need to compute all RUM representations.