Foundations of ambiguity models under symmetry: ?-MEU and smooth ambiguity

نویسندگان

چکیده

The ?-MEU model and the smooth ambiguity are two popular models in decision making under ambiguity. However, axiomatic foundations of these not completely understood. We provide a symmetric setting with product state space S?. This allows marginals over S to be linked behaviorally (limiting frequency) events. Bets on such events shown reveal i.i.d. measures that relevant for maker's preferences appear representations. By characterizing both within common framework, it becomes possible better compare relate them.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Symmetry, Ambiguity and Frequencies

We model a decision-maker who is facing a sequence of experiments, and whose perception is that outcomes are in‡uenced by two factors one that is well understood and …xed across experiments, and the other that is poorly understood and thought to be unrelated across experiments (the “error term”). Consequently, there is incomplete con…dence that experiments are identical. We argue that a Bayesia...

متن کامل

Recursive smooth ambiguity preferences

Introduction Propose and provide foundations for a preference model set in an explicitly dynamic framework with uncertainty where: DM is sensitive to ambiguity ambiguity attitude is separated from ambiguity ‡exibility in ambiguity attitude and in scope of ambiguity preferences are dynamically consistent discounted expected utility is a special case beliefs are updated over time

متن کامل

Recursive Smooth Ambiguity Preferences1

This paper axiomatizes an intertemporal version of the Smooth Ambiguity decision model developed in Klibanoff, Marinacci, and Mukerji (2005). A key feature of the model is that it achieves a separation between ambiguity, identified as a characteristic of the decision maker’s subjective beliefs, and ambiguity attitude, a characteristic of the decision maker’s tastes. In applications one may thus...

متن کامل

Portfolio Choice Under Ambiguity

This paper provides an intersection between portfolio choice theory and the elicitation of preferences under uncertainty. Theories of financial markets build on portfolio choice theory, which generally assumes that preferences are of a particularly simple kind, while research on preferences has revealed that people have more sophisticated preferences. This paper brings the two fields together b...

متن کامل

Diversified Treatment under Ambiguity

This paper develops a broad theme about treatment under ambiguity through study of a particular decision criterion. The broad theme is that a planner may often want to cope with ambiguity by diversification, assigning observationally identical persons to different treatments. Study of the minimax-regret (MR) criterion substantiates the theme. The paper significantly extends my earlier analysis ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Economic Theory

سال: 2022

ISSN: ['1095-7235', '0022-0531']

DOI: https://doi.org/10.1016/j.jet.2021.105202