Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game

Detalhes bibliográficos
Autor(a) principal: Alvarez, Luis Antonio Fantozzi
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Institucional do FGV (FGV Repositório Digital)
Texto Completo: http://hdl.handle.net/10438/27303
Resumo: Indivíduos similares mantêm relações pois assim o preferem (homofilia em preferências) ou porque se encontram com mais frequência (homofilia em encontros)? O presente artigo estuda a identificação e estimação de um jogo dinâmico de formação de redes em que ambos os mecanismos estão presentes. Nós provemos condições sob as quais os parâmetros relacionados às preferências e às oportunidades de encontro são identificados. Nós também estudamos a estimação desse modelo sob as perspectivas frequentista e bayesiana. Como aplicação, nós estudamos a formação de redes de amizades em escolas públicas do Recife; e como um tratamento aleatorizado afeta a tecnologia de encontro entre os agentes. Nossos resultados indicam que os padrões de homofilia observados nos dados se devem sobretudo às preferências.
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spelling Alvarez, Luis Antonio FantozziEscolas::EESPPonczek, Vladimir PinheiroPaula Neto, Áureo Nilo deFirpo, Sergio PinheiroPinto, Cristine Campos de Xavier2019-03-29T13:05:39Z2019-03-29T13:05:39Z2019-03-19http://hdl.handle.net/10438/27303Indivíduos similares mantêm relações pois assim o preferem (homofilia em preferências) ou porque se encontram com mais frequência (homofilia em encontros)? O presente artigo estuda a identificação e estimação de um jogo dinâmico de formação de redes em que ambos os mecanismos estão presentes. Nós provemos condições sob as quais os parâmetros relacionados às preferências e às oportunidades de encontro são identificados. Nós também estudamos a estimação desse modelo sob as perspectivas frequentista e bayesiana. Como aplicação, nós estudamos a formação de redes de amizades em escolas públicas do Recife; e como um tratamento aleatorizado afeta a tecnologia de encontro entre os agentes. Nossos resultados indicam que os padrões de homofilia observados nos dados se devem sobretudo às preferências.Is homophily in social and economic networks driven by a taste for homogeneity (preferences) or by a higher probability of meeting individuals with similar attributes (opportunity)? This paper studies identification and estimation of a dynamic network game that distinguishes between both mechanisms. We provide conditions under which preference- and meeting-related parameters are identified. We then analyse estimation under both frequentist and Bayesian perspectives. As an application, we study how a treatment affects the meeting technology between agents in the context of a randomised control trial in Northeastern Brazil. We find that homophily patterns in our data are mainly driven by preferences.engHomophilyNetwork formationIdentification at infinityLilelihood-free estimationHomofiliaFormação de redesIdentificação no infinitoMétodos de estimação likelihood-freeEconomiaRedes sociais - Aspectos sociaisTeoria bayesiana de decisão estatísticaAmizade - Aspectos sociológicosHomophily in preferences or meetings? 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dc.title.eng.fl_str_mv Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
title Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
spellingShingle Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
Alvarez, Luis Antonio Fantozzi
Homophily
Network formation
Identification at infinity
Lilelihood-free estimation
Homofilia
Formação de redes
Identificação no infinito
Métodos de estimação likelihood-free
Economia
Redes sociais - Aspectos sociais
Teoria bayesiana de decisão estatística
Amizade - Aspectos sociológicos
title_short Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
title_full Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
title_fullStr Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
title_full_unstemmed Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
title_sort Homophily in preferences or meetings? Identification and estimation of a dynamic network formation game
author Alvarez, Luis Antonio Fantozzi
author_facet Alvarez, Luis Antonio Fantozzi
author_role author
dc.contributor.unidadefgv.por.fl_str_mv Escolas::EESP
dc.contributor.member.none.fl_str_mv Ponczek, Vladimir Pinheiro
Paula Neto, Áureo Nilo de
Firpo, Sergio Pinheiro
dc.contributor.author.fl_str_mv Alvarez, Luis Antonio Fantozzi
dc.contributor.advisor1.fl_str_mv Pinto, Cristine Campos de Xavier
contributor_str_mv Pinto, Cristine Campos de Xavier
dc.subject.eng.fl_str_mv Homophily
Network formation
Identification at infinity
Lilelihood-free estimation
topic Homophily
Network formation
Identification at infinity
Lilelihood-free estimation
Homofilia
Formação de redes
Identificação no infinito
Métodos de estimação likelihood-free
Economia
Redes sociais - Aspectos sociais
Teoria bayesiana de decisão estatística
Amizade - Aspectos sociológicos
dc.subject.por.fl_str_mv Homofilia
Formação de redes
Identificação no infinito
Métodos de estimação likelihood-free
dc.subject.area.por.fl_str_mv Economia
dc.subject.bibliodata.por.fl_str_mv Redes sociais - Aspectos sociais
Teoria bayesiana de decisão estatística
Amizade - Aspectos sociológicos
description Indivíduos similares mantêm relações pois assim o preferem (homofilia em preferências) ou porque se encontram com mais frequência (homofilia em encontros)? O presente artigo estuda a identificação e estimação de um jogo dinâmico de formação de redes em que ambos os mecanismos estão presentes. Nós provemos condições sob as quais os parâmetros relacionados às preferências e às oportunidades de encontro são identificados. Nós também estudamos a estimação desse modelo sob as perspectivas frequentista e bayesiana. Como aplicação, nós estudamos a formação de redes de amizades em escolas públicas do Recife; e como um tratamento aleatorizado afeta a tecnologia de encontro entre os agentes. Nossos resultados indicam que os padrões de homofilia observados nos dados se devem sobretudo às preferências.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-03-29T13:05:39Z
dc.date.available.fl_str_mv 2019-03-29T13:05:39Z
dc.date.issued.fl_str_mv 2019-03-19
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dc.language.iso.fl_str_mv eng
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