SOURCES OF UNCERTAINTY AND SUBJECTIVE PRICES

• 成果类型: Article
• 署名作者: Cappelli, Veronica; Cerreia-Vioglio, Simone; Maccheroni, Fabio; Marinacci, Massimo; Minardi, Stefania
• 署名单位: Hautes Etudes Commerciales (HEC) Paris; Bocconi University; Bocconi University
• 刊物名称: JOURNAL OF THE EUROPEAN ECONOMIC ASSOCIATION
• ISSN/ISSBN: 1542-4766
• DOI: 10.1093/jeea/jvaa013
• 发表日期: 2021
• 页码: 872-912
• 关键词: expected utility; decision-making; risk attitudes; ambiguity; probabilities; familiarity; competence; aversion; domain; belief

摘要

We develop a general framework to study source-dependent preferences in economic contexts. We behaviorally identify two key features. First, we drop the assumption of uniform uncertainty attitudes and allow for source-dependent attitudes. Second, we introduce subjective prices to compare outcomes across different sources. Our model evaluates profiles source-wise, by computing the source-dependent certainty equivalents; the latter are converted into the unit of account of a common source and then aggregated into a unique evaluation. By viewing time and location as instances of sources, we show that subjective discount factors and subjective exchange rates are emblematic examples of subjective prices. Finally, we use the model to explore the implications on optimal portfolio allocations and home bias.