Groups of forecasters and their performances - evidence from the focus survey

Detalhes bibliográficos
Autor(a) principal: Curi, Nicolau Certain
Data de Publicação: 2020
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Institucional do FGV (FGV Repositório Digital)
Texto Completo: https://hdl.handle.net/10438/34589
Resumo: Esse trabalho examina a acurácia das instituições participantes da Focus Survey, que é organizada pelo Banco Central do Brasil. Os respondentes da survey são estimulados a participar pelo concurso Top Five. Dividimos os participantes em grupos de updaters e não updaters, sendo os updaters aqueles que colocam sua previsão no dia do concurso. O método Extended BCAF é usado para avaliar a precisão dos grupos de previsores. Observa-se que os updaters são consideravelmente mais precisos na lógica do MSE do que os não updaters. Para não descartar informação, algumas regras de correção são propostas de modo que possamos retificar as previsões dos não updaters. O grupo de previsores corrigidos é então combinado com o grupo de updaters e o Extended BCAF é novamente aplicado. Entretanto, quando comparado ao grupo dos updaters sozinhos, descobrimos que o grupo com as previsões corrigidas performa pior. Portanto, a evidência mostra que o grupo de updaters é o mais preciso em prever a inflação.
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spelling Curi, Nicolau CertainEscolas::EPGETrindade, André Garcia de OliveiraGaglianone, Wagner PiazzaIssler, João Victor2023-12-07T12:42:15Z2023-12-07T12:42:15Z2020-03-31https://hdl.handle.net/10438/34589Esse trabalho examina a acurácia das instituições participantes da Focus Survey, que é organizada pelo Banco Central do Brasil. Os respondentes da survey são estimulados a participar pelo concurso Top Five. Dividimos os participantes em grupos de updaters e não updaters, sendo os updaters aqueles que colocam sua previsão no dia do concurso. O método Extended BCAF é usado para avaliar a precisão dos grupos de previsores. Observa-se que os updaters são consideravelmente mais precisos na lógica do MSE do que os não updaters. Para não descartar informação, algumas regras de correção são propostas de modo que possamos retificar as previsões dos não updaters. O grupo de previsores corrigidos é então combinado com o grupo de updaters e o Extended BCAF é novamente aplicado. Entretanto, quando comparado ao grupo dos updaters sozinhos, descobrimos que o grupo com as previsões corrigidas performa pior. Portanto, a evidência mostra que o grupo de updaters é o mais preciso em prever a inflação.This study examines the accuracy of forecasters in the Focus Survey led by the Brazilian Central Bank. The survey respondents are stimulated to participate by the Top Five contest. We divide the participants into groups of updaters and non updaters, being the updaters the ones who place their forecasts at the contest day. The forecast combination method Extended BCAF is used to evaluate the groups forecasting accuracy. It is found that the updaters are considerably more accurate in the MSE sense than the non updaters. In order to not discard information, some correction rules are proposed so that we can rectify the non updaters forecasts. The corrected forecasts of non updaters are then united with the updaters forecasts and we apply again the Extended BCAF. When comparing to the group of only updaters though, the groups with the corrected forecasts still perform worse. Hence, the evidence shows that the group of updaters is the most accurate.Forecast CombinationBrazilian InflationRational InattentionEconomiaTaxa de inflação - Modelos econométricos - BrasilInflação - BrasilPrevisão estatísticaGroups of forecasters and their performances - evidence from the focus surveyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional do FGV (FGV Repositório Digital)instname:Fundação Getulio Vargas (FGV)instacron:FGVORIGINALPDFPDFapplication/pdf1097248https://repositorio.fgv.br/bitstreams/de1596b4-1c3c-4eab-a355-8d651ff8345c/download473580f31539672ae89ae359a53ba980MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-84707https://repositorio.fgv.br/bitstreams/fb34251f-fb35-49a4-8f02-d5aa7e9ecf02/downloaddfb340242cced38a6cca06c627998fa1MD52TEXTDissertacao_Nicolau.pdf.txtDissertacao_Nicolau.pdf.txtExtracted 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dc.title.por.fl_str_mv Groups of forecasters and their performances - evidence from the focus survey
title Groups of forecasters and their performances - evidence from the focus survey
spellingShingle Groups of forecasters and their performances - evidence from the focus survey
Curi, Nicolau Certain
Forecast Combination
Brazilian Inflation
Rational Inattention
Economia
Taxa de inflação - Modelos econométricos - Brasil
Inflação - Brasil
Previsão estatística
title_short Groups of forecasters and their performances - evidence from the focus survey
title_full Groups of forecasters and their performances - evidence from the focus survey
title_fullStr Groups of forecasters and their performances - evidence from the focus survey
title_full_unstemmed Groups of forecasters and their performances - evidence from the focus survey
title_sort Groups of forecasters and their performances - evidence from the focus survey
author Curi, Nicolau Certain
author_facet Curi, Nicolau Certain
author_role author
dc.contributor.unidadefgv.por.fl_str_mv Escolas::EPGE
dc.contributor.member.none.fl_str_mv Trindade, André Garcia de Oliveira
Gaglianone, Wagner Piazza
dc.contributor.author.fl_str_mv Curi, Nicolau Certain
dc.contributor.advisor1.fl_str_mv Issler, João Victor
contributor_str_mv Issler, João Victor
dc.subject.por.fl_str_mv Forecast Combination
Brazilian Inflation
Rational Inattention
topic Forecast Combination
Brazilian Inflation
Rational Inattention
Economia
Taxa de inflação - Modelos econométricos - Brasil
Inflação - Brasil
Previsão estatística
dc.subject.area.por.fl_str_mv Economia
dc.subject.bibliodata.por.fl_str_mv Taxa de inflação - Modelos econométricos - Brasil
Inflação - Brasil
Previsão estatística
description Esse trabalho examina a acurácia das instituições participantes da Focus Survey, que é organizada pelo Banco Central do Brasil. Os respondentes da survey são estimulados a participar pelo concurso Top Five. Dividimos os participantes em grupos de updaters e não updaters, sendo os updaters aqueles que colocam sua previsão no dia do concurso. O método Extended BCAF é usado para avaliar a precisão dos grupos de previsores. Observa-se que os updaters são consideravelmente mais precisos na lógica do MSE do que os não updaters. Para não descartar informação, algumas regras de correção são propostas de modo que possamos retificar as previsões dos não updaters. O grupo de previsores corrigidos é então combinado com o grupo de updaters e o Extended BCAF é novamente aplicado. Entretanto, quando comparado ao grupo dos updaters sozinhos, descobrimos que o grupo com as previsões corrigidas performa pior. Portanto, a evidência mostra que o grupo de updaters é o mais preciso em prever a inflação.
publishDate 2020
dc.date.issued.fl_str_mv 2020-03-31
dc.date.accessioned.fl_str_mv 2023-12-07T12:42:15Z
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