The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs

Detalhes bibliográficos
Autor(a) principal: Dow, James
Data de Publicação: 1992
Outros Autores: Werlang, Sérgio Ribeiro da Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do FGV (FGV Repositório Digital)
Texto Completo: http://hdl.handle.net/10438/818
Resumo: The most widely used updating rule for non-additive probalities is the Dempster-Schafer rule. Schmeidles and Gilboa have developed a model of decision making under uncertainty based on non-additive probabilities, and in their paper 'Updating Ambiguos Beliefs' they justify the Dempster-Schafer rule based on a maximum likelihood procedure. This note shows in the context of Schmeidler-Gilboa preferences under uncertainty, that the Dempster-Schafer rule is in general not ex-ante optimal. This contrasts with Brown’s result that Bayes’ rule is ex-ante optimal for standard Savage preferences with additive probabilities.
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spelling Dow, JamesWerlang, Sérgio Ribeiro da CostaEscolas::EPGEFGV2008-05-13T15:35:46Z2008-05-13T15:35:46Z1992-020104-8910http://hdl.handle.net/10438/818The most widely used updating rule for non-additive probalities is the Dempster-Schafer rule. Schmeidles and Gilboa have developed a model of decision making under uncertainty based on non-additive probabilities, and in their paper 'Updating Ambiguos Beliefs' they justify the Dempster-Schafer rule based on a maximum likelihood procedure. This note shows in the context of Schmeidler-Gilboa preferences under uncertainty, that the Dempster-Schafer rule is in general not ex-ante optimal. This contrasts with Brown’s result that Bayes’ rule is ex-ante optimal for standard Savage preferences with additive probabilities.engEscola de Pós-Graduação em Economia da FGVEnsaios Econômicos;185Todo cuidado foi dispensado para respeitar os direitos autorais deste trabalho. Entretanto, caso esta obra aqui depositada seja protegida por direitos autorais externos a esta instituição, contamos com a compreensão do autor e solicitamos que o mesmo faça contato através do Fale Conosco para que possamos tomar as providências cabíveisinfo:eu-repo/semantics/openAccessThe ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleEconomiaEconomia matemáticaEconomiareponame:Repositório Institucional do FGV (FGV Repositório Digital)instname:Fundação Getulio Vargas (FGV)instacron:FGVORIGINAL185_000075405.pdf185_000075405.pdfapplication/pdf400363https://repositorio.fgv.br/bitstreams/3bd48cf4-655f-42d4-8495-98a62660c172/downloadf616474f4f3936c8dc6311d42944fccdMD51TEXT185_000075405.pdf.txt185_000075405.pdf.txtExtracted texttext/plain19039https://repositorio.fgv.br/bitstreams/d8d20359-509d-416e-b955-1548fd03d5b0/download611792b222657bdc4a87fbd34946c680MD56THUMBNAIL185_000075405.pdf.jpg185_000075405.pdf.jpgGenerated Thumbnailimage/jpeg2414https://repositorio.fgv.br/bitstreams/0de4b9cb-7079-4f5c-a940-b87d52ef421e/download291c5d28ddf45f8278ba69bed8c237c6MD5710438/8182023-11-08 21:55:38.916open.accessoai:repositorio.fgv.br:10438/818https://repositorio.fgv.brRepositório InstitucionalPRIhttp://bibliotecadigital.fgv.br/dspace-oai/requestopendoar:39742023-11-08T21:55:38Repositório Institucional do FGV (FGV Repositório Digital) - Fundação Getulio Vargas (FGV)false
dc.title.eng.fl_str_mv The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
title The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
spellingShingle The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
Dow, James
Economia
Economia matemática
Economia
title_short The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
title_full The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
title_fullStr The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
title_full_unstemmed The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
title_sort The ex-Ante non-optimality of the Dempster-Schafer updating rule for ambiguous beliefs
author Dow, James
author_facet Dow, James
Werlang, Sérgio Ribeiro da Costa
author_role author
author2 Werlang, Sérgio Ribeiro da Costa
author2_role author
dc.contributor.unidadefgv.por.fl_str_mv Escolas::EPGE
dc.contributor.affiliation.none.fl_str_mv FGV
dc.contributor.author.fl_str_mv Dow, James
Werlang, Sérgio Ribeiro da Costa
dc.subject.area.por.fl_str_mv Economia
topic Economia
Economia matemática
Economia
dc.subject.bibliodata.por.fl_str_mv Economia matemática
Economia
description The most widely used updating rule for non-additive probalities is the Dempster-Schafer rule. Schmeidles and Gilboa have developed a model of decision making under uncertainty based on non-additive probabilities, and in their paper 'Updating Ambiguos Beliefs' they justify the Dempster-Schafer rule based on a maximum likelihood procedure. This note shows in the context of Schmeidler-Gilboa preferences under uncertainty, that the Dempster-Schafer rule is in general not ex-ante optimal. This contrasts with Brown’s result that Bayes’ rule is ex-ante optimal for standard Savage preferences with additive probabilities.
publishDate 1992
dc.date.issued.fl_str_mv 1992-02
dc.date.accessioned.fl_str_mv 2008-05-13T15:35:46Z
dc.date.available.fl_str_mv 2008-05-13T15:35:46Z
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dc.identifier.issn.none.fl_str_mv 0104-8910
identifier_str_mv 0104-8910
url http://hdl.handle.net/10438/818
dc.language.iso.fl_str_mv eng
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dc.relation.ispartofseries.por.fl_str_mv Ensaios Econômicos;185
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Escola de Pós-Graduação em Economia da FGV
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