Probabilities as similarity-weighted frequencies
成果类型：
Article
署名作者：
Billot, A; Gilboa, I; Samet, D; Schmeidler, D
署名单位：
Universite Paris-Pantheon-Assas; Institut Polytechnique de Paris; Ecole des Ponts ParisTech; Tel Aviv University; Yale University; University System of Ohio; Ohio State University
刊物名称：
ECONOMETRICA
ISSN/ISSBN：
0012-9682
DOI：
10.1111/j.1468-0262.2005.00611.x
发表日期：
2005
页码：
1125-1136
关键词：
摘要：
A decision maker is asked to express her beliefs by assigning probabilities to certain possible states. We focus on the relationship between her database and her beliefs. We show that if beliefs given a union of two databases are a convex combination of beliefs given each of the databases, the belief formation process follows a simple formula: beliefs are a similarity-weighted average of the beliefs induced by each past case.
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