Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions

This study is focused on the economic effects of two rules aimed at constraining the usage of computer programs for automatic bidding in online government purchases in Comprasnet. The “20s rule” mandated a minimum20 seconds between bids from the same supplier. The “3s rule” mandated a minimum interv...

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Detalles Bibliográficos
Autores: Menegatti, André Luís, Lucinda, Claudio Ribeiro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:Brasil
Institución:Universidade de São Paulo (USP)
Repositorio:Economia Aplicada
Idioma:portugués
OAI Identifier:oai:revistas.usp.br:article/184717
Acceso en línea:https://revistas.usp.br/ecoa/article/view/184717
Access Level:acceso abierto
Palabra clave:auctions
differences in differences
electronic bidding
diferenças em diferenças
lances automáticos
leilões
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spelling Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctionsRestrições a robôs em pregões eletrônicos: impactos nos leilões de café do Comprasnetauctionsdifferences in differenceselectronic biddingdiferenças em diferençaslances automáticosleilõesThis study is focused on the economic effects of two rules aimed at constraining the usage of computer programs for automatic bidding in online government purchases in Comprasnet. The “20s rule” mandated a minimum20 seconds between bids from the same supplier. The “3s rule” mandated a minimum interval of 3 seconds for another bid to cover the best bid. Results show the 3 seconds rule cause a price increase of approximately 15%, corresponding to an increase of BRL 7.5 million in Federal Government coffee purchases between January 2014 and December 2015.O estudo analisa os impactos econômicos de duas regras que restringiram o uso de programas de computador para submissão automática de lances em pregões eletrônicos do Comprasnet. A “Regra dos 20s” impôs o intervalo mínimo de 20 segundos entre lances subsequentes de um mesmo fornecedor. A “Regra dos 3s” impôs o intervalo mínimo de 3 segundos para cobrir a melhor oferta. A Regra dos 3s teria causado um aumento de preços de aproximadamente 15%, correspondendo a um aumento de R$7,5 milhões nos gastos do Governo Federal com aquisição de café entre janeiro de 2014 e dezembro de 2015.Universidade de São Paulo, FEA-RP/USP2024-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.usp.br/ecoa/article/view/18471710.11606/1980-5330/ea184717Economia Aplicada; Vol. 28 No. 2 (2024); 219-256Economia Aplicada; v. 28 n. 2 (2024); 219-256Economia Aplicada; Vol. 28 Núm. 2 (2024); 219-2561980-53301413-8050reponame:Economia Aplicadainstname:Universidade de São Paulo (USP)instacron:USPporhttps://revistas.usp.br/ecoa/article/view/184717/215833Copyright (c) 2025 Economia Aplicadainfo:eu-repo/semantics/openAccessMenegatti, André LuísLucinda, Claudio Ribeiro2025-07-18T19:55:17Zoai:revistas.usp.br:article/184717Revistahttps://www.revistas.usp.br/ecoaPUBhttps://www.revistas.usp.br/ecoa/oai||revecap@usp.br1980-53301413-8050opendoar:2025-07-18T19:55:17Economia Aplicada - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
Restrições a robôs em pregões eletrônicos: impactos nos leilões de café do Comprasnet
title Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
spellingShingle Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
Menegatti, André Luís
auctions
differences in differences
electronic bidding
diferenças em diferenças
lances automáticos
leilões
title_short Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
title_full Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
title_fullStr Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
title_full_unstemmed Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
title_sort Restrictions on robots in electronic auctions: impacts on Comprasnet coffee auctions
dc.creator.none.fl_str_mv Menegatti, André Luís
Lucinda, Claudio Ribeiro
author Menegatti, André Luís
author_facet Menegatti, André Luís
Lucinda, Claudio Ribeiro
author_role author
author2 Lucinda, Claudio Ribeiro
author2_role author
dc.subject.por.fl_str_mv auctions
differences in differences
electronic bidding
diferenças em diferenças
lances automáticos
leilões
topic auctions
differences in differences
electronic bidding
diferenças em diferenças
lances automáticos
leilões
description This study is focused on the economic effects of two rules aimed at constraining the usage of computer programs for automatic bidding in online government purchases in Comprasnet. The “20s rule” mandated a minimum20 seconds between bids from the same supplier. The “3s rule” mandated a minimum interval of 3 seconds for another bid to cover the best bid. Results show the 3 seconds rule cause a price increase of approximately 15%, corresponding to an increase of BRL 7.5 million in Federal Government coffee purchases between January 2014 and December 2015.
publishDate 2024
dc.date.none.fl_str_mv 2024-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.usp.br/ecoa/article/view/184717
10.11606/1980-5330/ea184717
url https://revistas.usp.br/ecoa/article/view/184717
identifier_str_mv 10.11606/1980-5330/ea184717
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.usp.br/ecoa/article/view/184717/215833
dc.rights.driver.fl_str_mv Copyright (c) 2025 Economia Aplicada
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2025 Economia Aplicada
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo, FEA-RP/USP
publisher.none.fl_str_mv Universidade de São Paulo, FEA-RP/USP
dc.source.none.fl_str_mv Economia Aplicada; Vol. 28 No. 2 (2024); 219-256
Economia Aplicada; v. 28 n. 2 (2024); 219-256
Economia Aplicada; Vol. 28 Núm. 2 (2024); 219-256
1980-5330
1413-8050
reponame:Economia Aplicada
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Economia Aplicada
collection Economia Aplicada
repository.name.fl_str_mv Economia Aplicada - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||revecap@usp.br
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score 15,300724

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