Following the beacon: minimum wage bunching, informality, and wage inequality

Detalhes bibliográficos
Ano de defesa: 2026
Autor(a) principal: Ferreira, Vinícius de Almeida Nery
Orientador(a): Finamor, Lucas
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: eng
Instituição de defesa: Não Informado pela instituição
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Salário mínimo
Informalidade
Desigualdade salarial
Fricções de otimização
Palavras-chave em Inglês:
Minimum wage
Informality
Wage inequality
Mis-optimization
Link de acesso: https://hdl.handle.net/10438/38761
Resumo: Por que tantos trabalhadores informais recebem exatamente o salário mínimo? Argumentamos que esse fenômeno, conhecido como efeito farol, existe porque o salário m mínimo reduz os custos de otimização das firmas e funciona como um ponto de referência para a determinação de salários. Desenvolvemos um modelo de dois setores com competição monopsonística e fricções de otimização que gera distribuições salariais de equilíbrio com massas de trabalhadores no salário mínimo em ambos os setores, e o estimamos com dados brasileiros para avaliar os efeitos do aumento de 60% no salário mínimo real observado entre 2003 e 2012. Modelar o efeito farol e´ importante: ignorar a massa de trabalhadores informais ganhando o salário mínimo superestima seus impactos sobre a desigualdade salarial informal e altera de forma substantiva os parâmetros estruturais estimados. O aumento do salário mínimo explica quase a totalidade da queda na desigualdade salarial no setor formal e 38% da redução observada na desigualdade salarial total entre 2003 e 2012, gerando pequenos aumentos na informalidade e no desemprego.
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spelling Ferreira, Vinícius de Almeida NeryEscolas::EESPUlyssea, GabrielMartinez, Tomásvirtual::495Finamor, Lucas2026-05-11T18:49:34Z2026-04-30https://hdl.handle.net/10438/38761Por que tantos trabalhadores informais recebem exatamente o salário mínimo? Argumentamos que esse fenômeno, conhecido como efeito farol, existe porque o salário m mínimo reduz os custos de otimização das firmas e funciona como um ponto de referência para a determinação de salários. Desenvolvemos um modelo de dois setores com competição monopsonística e fricções de otimização que gera distribuições salariais de equilíbrio com massas de trabalhadores no salário mínimo em ambos os setores, e o estimamos com dados brasileiros para avaliar os efeitos do aumento de 60% no salário mínimo real observado entre 2003 e 2012. Modelar o efeito farol e´ importante: ignorar a massa de trabalhadores informais ganhando o salário mínimo superestima seus impactos sobre a desigualdade salarial informal e altera de forma substantiva os parâmetros estruturais estimados. O aumento do salário mínimo explica quase a totalidade da queda na desigualdade salarial no setor formal e 38% da redução observada na desigualdade salarial total entre 2003 e 2012, gerando pequenos aumentos na informalidade e no desemprego.Why do so many informal workers earn the minimum wage? We argue that this phenomenon, known as the lighthouse effect, exists because the minimum wage lowers optimization costs for firms and serves as a benchmark for fair pay. We develop a dual-sector model with monopsonistic competition and mis-optimization frictions that generates equilibrium wage distributions featuring bunching at the minimum wage and missing masses around it in both sectors, and estimate it using Brazilian data to assess the effects of the 60% increase in the real minimum wage observed between 2003 and 2012. Modeling lighthouse effects matters: ignoring the informal spike overstates the effect of minimum wage increases on informal wage inequality and meaningfully alters estimated structural parameters. The minimum wage increase accounts for nearly the entire decline in formal wage inequality and for 38% of the observed decrease in total wage inequality between 2003 and 2012, while leading to small rises in informality and unemployment.engSalário mínimoInformalidadeDesigualdade salarialFricções de otimizaçãoMinimum wageInformalityWage inequalityMis-optimizationEconomiaSalário-mínimoSetor informal (Economia)Mercado de trabalhoSalários - BrasilFollowing the beacon: minimum wage bunching, informality, and wage inequalityinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-1info:eu-repo/semantics/openAccessreponame:Repositório Institucional do FGV (FGV Repositório Digital)instname:Fundação Getulio Vargas (FGV)instacron:FGVPublication5f528e36-56e1-428d-a113-8ac9b26a11e8virtual::495-15f528e36-56e1-428d-a113-8ac9b26a11e8virtual::495-1LICENSElicense.txtlicense.txttext/plain; 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dc.title.eng.fl_str_mv Following the beacon: minimum wage bunching, informality, and wage inequality
title Following the beacon: minimum wage bunching, informality, and wage inequality
spellingShingle Following the beacon: minimum wage bunching, informality, and wage inequality
Ferreira, Vinícius de Almeida Nery
Salário mínimo
Informalidade
Desigualdade salarial
Fricções de otimização
Minimum wage
Informality
Wage inequality
Mis-optimization
Economia
Salário-mínimo
Setor informal (Economia)
Mercado de trabalho
Salários - Brasil
title_short Following the beacon: minimum wage bunching, informality, and wage inequality
title_full Following the beacon: minimum wage bunching, informality, and wage inequality
title_fullStr Following the beacon: minimum wage bunching, informality, and wage inequality
title_full_unstemmed Following the beacon: minimum wage bunching, informality, and wage inequality
title_sort Following the beacon: minimum wage bunching, informality, and wage inequality
author Ferreira, Vinícius de Almeida Nery
author_facet Ferreira, Vinícius de Almeida Nery
author_role author
dc.contributor.unidadefgv.por.fl_str_mv Escolas::EESP
dc.contributor.member.none.fl_str_mv Ulyssea, Gabriel
Martinez, Tomás
dc.contributor.author.fl_str_mv Ferreira, Vinícius de Almeida Nery
dc.contributor.advisor1ID.fl_str_mv virtual::495
dc.contributor.advisor1.fl_str_mv Finamor, Lucas
contributor_str_mv Finamor, Lucas
dc.subject.por.fl_str_mv Salário mínimo
Informalidade
Desigualdade salarial
Fricções de otimização
topic Salário mínimo
Informalidade
Desigualdade salarial
Fricções de otimização
Minimum wage
Informality
Wage inequality
Mis-optimization
Economia
Salário-mínimo
Setor informal (Economia)
Mercado de trabalho
Salários - Brasil
dc.subject.eng.fl_str_mv Minimum wage
Informality
Wage inequality
Mis-optimization
dc.subject.area.por.fl_str_mv Economia
dc.subject.bibliodata.por.fl_str_mv Salário-mínimo
Setor informal (Economia)
Mercado de trabalho
Salários - Brasil
description Por que tantos trabalhadores informais recebem exatamente o salário mínimo? Argumentamos que esse fenômeno, conhecido como efeito farol, existe porque o salário m mínimo reduz os custos de otimização das firmas e funciona como um ponto de referência para a determinação de salários. Desenvolvemos um modelo de dois setores com competição monopsonística e fricções de otimização que gera distribuições salariais de equilíbrio com massas de trabalhadores no salário mínimo em ambos os setores, e o estimamos com dados brasileiros para avaliar os efeitos do aumento de 60% no salário mínimo real observado entre 2003 e 2012. Modelar o efeito farol e´ importante: ignorar a massa de trabalhadores informais ganhando o salário mínimo superestima seus impactos sobre a desigualdade salarial informal e altera de forma substantiva os parâmetros estruturais estimados. O aumento do salário mínimo explica quase a totalidade da queda na desigualdade salarial no setor formal e 38% da redução observada na desigualdade salarial total entre 2003 e 2012, gerando pequenos aumentos na informalidade e no desemprego.
publishDate 2026
dc.date.accessioned.fl_str_mv 2026-05-11T18:49:34Z
dc.date.issued.fl_str_mv 2026-04-30
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/10438/38761
url https://hdl.handle.net/10438/38761
dc.language.iso.fl_str_mv eng
language eng
dc.relation.confidence.fl_str_mv -1
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional do FGV (FGV Repositório Digital)
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