Trading off bias and noise in a cheap talk game

Detalhes bibliográficos
Autor(a) principal: Menezes, Marcos Vinicius Silva de
Data de Publicação: 2022
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Institucional do FGV (FGV Repositório Digital)
Texto Completo: https://hdl.handle.net/10438/32039
Resumo: Este artigo estuda o trade off entre viés e a acurácia do sinal. Em um modelo de cheap talk, o sinal do mensageiro é correlacionado com seu viés, quanto maior o viés, maior o ruído do sinal. O tomador de decisão escolhe o mensageiro de um intervalo. Nós mostramos que, com sinais e estados binários, se o ponto de indiferença de todo mensageiro está no suporte de sua posterior, então existe um conjunto de mensageiros que podem ser escutados. Se a posterior do mensageiro expande a uma taxa decrescente como função do viés, então o conjunto de mensageiros consultados terá no máximo dois elementos.
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spelling Menezes, Marcos Vinicius Silva deEscolas::EPGEGorno, LeandroMonte, DanielMaestri, Lucas Jóver2022-06-01T15:21:56Z2022-06-01T15:21:56Z2022-03-12https://hdl.handle.net/10438/32039Este artigo estuda o trade off entre viés e a acurácia do sinal. Em um modelo de cheap talk, o sinal do mensageiro é correlacionado com seu viés, quanto maior o viés, maior o ruído do sinal. O tomador de decisão escolhe o mensageiro de um intervalo. Nós mostramos que, com sinais e estados binários, se o ponto de indiferença de todo mensageiro está no suporte de sua posterior, então existe um conjunto de mensageiros que podem ser escutados. Se a posterior do mensageiro expande a uma taxa decrescente como função do viés, então o conjunto de mensageiros consultados terá no máximo dois elementos.We study the trade off between bias and signal's accuracy. In a cheap talk model, the sender's signal is correlated with his bias, the greater the bias, the lower the signal's noise. The decision maker chooses a sender from an interval. We show that, with binary actions and states, if all sender's indifference point lies in the support of his posterior, than there exist a set of senders that might listened. If the posterior of the sender expands at a decreasing rate as a function of the bias, then the set of possibly chosen sender's is at most two.engCheap talkNoisy signalAsymmetric informationSinal com ruídoInformação assimétricaEconomiaTeoria dos jogos - Processo decisórioJogos estratégicos (Matemática)Informação assimétricaProcesso decisório - MatemáticaTrading off bias and noise in a cheap talk gameinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis2022-03-12info:eu-repo/semantics/openAccessreponame:Repositório Institucional do FGV (FGV Repositório Digital)instname:Fundação Getulio Vargas (FGV)instacron:FGVLICENSElicense.txtlicense.txttext/plain; charset=utf-84707https://repositorio.fgv.br/bitstreams/6e15f7a2-cb79-43d1-ad7b-667ba7a9560b/downloaddfb340242cced38a6cca06c627998fa1MD52ORIGINALPDFPDFapplication/pdf474529https://repositorio.fgv.br/bitstreams/ead95d25-c1b6-4d26-8fa4-1c66d5c75ad7/download5c126692e71c97e7e58b5d5636d16c57MD51TEXTTrading off bias and noise 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dc.title.eng.fl_str_mv Trading off bias and noise in a cheap talk game
title Trading off bias and noise in a cheap talk game
spellingShingle Trading off bias and noise in a cheap talk game
Menezes, Marcos Vinicius Silva de
Cheap talk
Noisy signal
Asymmetric information
Sinal com ruído
Informação assimétrica
Economia
Teoria dos jogos - Processo decisório
Jogos estratégicos (Matemática)
Informação assimétrica
Processo decisório - Matemática
title_short Trading off bias and noise in a cheap talk game
title_full Trading off bias and noise in a cheap talk game
title_fullStr Trading off bias and noise in a cheap talk game
title_full_unstemmed Trading off bias and noise in a cheap talk game
title_sort Trading off bias and noise in a cheap talk game
author Menezes, Marcos Vinicius Silva de
author_facet Menezes, Marcos Vinicius Silva de
author_role author
dc.contributor.unidadefgv.por.fl_str_mv Escolas::EPGE
dc.contributor.member.none.fl_str_mv Gorno, Leandro
Monte, Daniel
dc.contributor.author.fl_str_mv Menezes, Marcos Vinicius Silva de
dc.contributor.advisor1.fl_str_mv Maestri, Lucas Jóver
contributor_str_mv Maestri, Lucas Jóver
dc.subject.eng.fl_str_mv Cheap talk
Noisy signal
Asymmetric information
topic Cheap talk
Noisy signal
Asymmetric information
Sinal com ruído
Informação assimétrica
Economia
Teoria dos jogos - Processo decisório
Jogos estratégicos (Matemática)
Informação assimétrica
Processo decisório - Matemática
dc.subject.por.fl_str_mv Sinal com ruído
Informação assimétrica
dc.subject.area.por.fl_str_mv Economia
dc.subject.bibliodata.por.fl_str_mv Teoria dos jogos - Processo decisório
Jogos estratégicos (Matemática)
Informação assimétrica
Processo decisório - Matemática
description Este artigo estuda o trade off entre viés e a acurácia do sinal. Em um modelo de cheap talk, o sinal do mensageiro é correlacionado com seu viés, quanto maior o viés, maior o ruído do sinal. O tomador de decisão escolhe o mensageiro de um intervalo. Nós mostramos que, com sinais e estados binários, se o ponto de indiferença de todo mensageiro está no suporte de sua posterior, então existe um conjunto de mensageiros que podem ser escutados. Se a posterior do mensageiro expande a uma taxa decrescente como função do viés, então o conjunto de mensageiros consultados terá no máximo dois elementos.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-06-01T15:21:56Z
dc.date.available.fl_str_mv 2022-06-01T15:21:56Z
dc.date.issued.fl_str_mv 2022-03-12
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10438/32039
url https://hdl.handle.net/10438/32039
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional do FGV (FGV Repositório Digital)
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