Lottery-Specific Effects and Heterogeneity: A Unified Framework

Jose Apesteguia, Miguel Ángel Ballester and Ángelo Gutiérrez-Daza

No 1607, Working Papers from Barcelona School of Economics

Abstract: We develop a framework for studying lottery-specific deviations from expected utility without imposing a particular behavioral model. Certainty-equivalent valuations arise from a distribution over expected-utility preferences. We characterize two lottery-dependent extensions axiomatically: one allows lottery characteristics to shift the distribution's location, capturing mean risk attitudes, and the other its scale, capturing behavioral noise. Using 197,465 observations from 15 studies, covering 1,299 lotteries, 90 treatments, and 7,362 individuals, we find that complexity-related characteristics primarily affect noise, whereas probability mass tilted toward favorable payoffs and the presence of losses primarily affect mean risk attitudes. The framework organizes empirical regularities usually treated separately.

Keywords: attention; complexity; expected utility; heterogeneity; ordered logit; prospect theory; reference-dependence; salience (search for similar items in EconPapers)
JEL-codes: C13 C25 D81 D91 (search for similar items in EconPapers)
Date: 2026-10
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