Template-Type: ReDIF-Paper 1.0
Author-Name: Giacomo Bonanno
Author-Name-First: Giacomo
Author-Name-Last: Bonanno
Author-Workplace-Name: Department of Economics, University of California Davis
Title: Filtered belief revision and generalized choice structures
Abstract: In an earlier paper [Rational choice and AGM belief revision, Artificial Intelligence, 2009] a correspondence was established between the choice structures of revealed-preference theory (developed in economics) and the syntactic belief revision functions of the AGM theory (developed in philosophy and computer science). In this paper we extend the re-interpretation of (a generalized notion of) choice structure in terms of belief revision by adding: (1) the possibility that an item of ``information'' might be discarded as not credible (thus dropping the AGM success axiom) and (2) the possibility that an item of information, while not accepted as fully credible, may still be ``taken seriously'' (we call such items of information ``allowable''). We establish a correspondence between generalized choice structures (GCS) and AGM belief revision; furthermore, we provide a syntactic characterization of the proposed notion of belief revision, which we call filtered belief revision.
Length: 29
File-URL: https://repec.dss.ucdavis.edu/files/RmbxKkwKdJaYxczQGuCteZbc/CABR.pdf
File-Format: application/pdf
Number: 338
Classification-JEL: D80
KeyWords: credible information, allowable information, AGM belief revision, choice structure
Creation-Date: 20200226
Handle: RePEc:cda:wpaper:338