Monotone Stochastic Choice Models: The Case of Risk and Time Preferences

• 成果类型: Article
• 署名作者: Apesteguia, Jose; Ballester, Miguel A.
• 署名单位: ICREA; Pompeu Fabra University; University of Oxford
• 刊物名称: JOURNAL OF POLITICAL ECONOMY
• ISSN/ISSBN: 0022-3808
• DOI: 10.1086/695504
• 发表日期: 2018
• 页码: 74-106
• 关键词: DECISION-MAKING; discrete-choice; aversion; BEHAVIOR; Heterogeneity; attitudes; utility; HEALTH

摘要

Suppose that, when evaluating two alternatives x and y by means of a parametric utility function, low values of the parameter indicate a preference for x and high values indicate a preference for y. We say that a stochastic choice model is monotone whenever the probability of choosing x is decreasing in the preference parameter. We show that the standard use of random utility models in the context of risk and time preferences may sharply violate this monotonicity property and argue that their use in preference estimation may be problematic. They may pose identification problems and could yield biased estimations. We then establish that the alternative random parameter models are always monotone.