The Rate of Risk Aversion May Be Lower Than You Think

نویسنده

  • Kris Jacobs
چکیده

Reproduction partielle permise avec citation du document source, incluant la notice ©. Short sections may be quoted without explicit permission, if full credit, including © notice, is given to the source. Les cahiers de la série scientifique (CS) visent à rendre accessibles des résultats de recherche effectuée au CIRANO afin de susciter échanges et commentaires. Ces cahiers sont écrits dans le style des publications scientifiques. Les idées et les opinions émises sont sous l'unique responsabilité des auteurs et ne représentent pas nécessairement les positions du CIRANO ou de ses partenaires. This paper presents research carried out at CIRANO and aims at encouraging discussion and comment. The observations and viewpoints expressed are the sole responsibility of the authors. They do not necessarily represent positions of CIRANO or its partners. Résumé / Abstract A l'aide de données sur la consommation des ménages et d'équations d'Euler, cet article estime le taux d'aversion au risque relatif. Ces équations d'Euler sont les implications de structures de marché qui ne permettent pas toujours aux agents de s'assurer parfaitement. Cet article porte plus particulièrement sur des tests de l'équation d'Euler inconditionnelle. Dans le cadre d'un agent représentatif, ce type de test mène aux rejets les plus intuitivement convaincants des modèles d'évaluation d'actifs, comme l'énigme de la prime de risque et l'énigme du taux sans risque. Lorsque l'on ignore les erreurs de mesure de la consommation, les erreurs de l'équation d'Euler ne sont pas statistiquement différents de zéro pour les valeurs du taux d'aversion au risque relatif comprises entre 1 et 3. Lorsque l'on tient compte de la présence des erreurs de mesure, les estimations conservatrices du taux d'aversion au risque relatif pour les participants à un marché d'actifs indiquent une valeur entre 2 et 8. Ces résultats suggèrent que le taux d'aversion au risque pourrait être plus bas que ce qui est couramment perçu. Par conséquent, l'imperfection des marchés pourrait servir à résoudre les énigmes d'évaluation d'actifs. This paper estimates the rate of relative risk aversion using Euler equations based on household-level consumption data. These Euler equations are implications of market structures that do not necessarily allow agents to perfectly insure themselves. The paper focuses on tests of the unconditional Euler equation. In representative-agent frameworks, this type of test leads to the most intuitively convincing rejections of asset-pricing models, such as the equity premium puzzle and the riskfree rate puzzle. When measurement error in consumption is ignored, …

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تاریخ انتشار 2002