Quantified beliefs and believed quantities
成果类型：
Article
署名作者：
Samet, D
署名单位：
Tel Aviv University
刊物名称：
JOURNAL OF ECONOMIC THEORY
ISSN/ISSBN：
0022-0531
DOI：
10.1006/jeth.2000.2670
发表日期：
2000
页码：
169-185
关键词：
摘要：
Beliefs about quantities are expressed by estimations. Beliefs are quantified by ascribing to them probability numbers. It is, shown that beliefs about quantities and quantified beliefs give rise to the same model, that of a type space. We study the axiom that an agent's estimation coincides with the estimation of that estimation, showing it to be weaker than the introspection axiom, according to which an agent is certain of his own probabilistic beliefs. It implies, however, that the agent is certain that he is introspective, and it is equivalent to the axioms of averaging and conditioning, which are expressed in terms of probabilistic beliefs. Journal of Economic Literature Classification Number: D80. (C) 2000 Academic Press.