Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market

Detalhes bibliográficos
Autor(a) principal: Martins, Orleans Silva
Data de Publicação: 2014
Outros Autores: Paulo, Edilson
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Revista Contabilidade & Finanças (Online)
Texto Completo: https://www.revistas.usp.br/rcf/article/view/80748
Resumo: This study sought to investigate the relationship between information asymmetry in the stock trading, economic and financial characteristics and corporate governance of listed companies in the Brazilian stock market in 2010 and 2011. To this end, the study relied on a theoretical framework for information asymmetry in the capital market to measure the asymmetry's magnitude based on the intraday stock-trading data of 194 companies. The primary results demonstrated that the informational asymmetry in the stock trading was positively related to the risk, return and liquidity of the shares as well as the cost of equity and the size of the companies. In addition, the asymmetry was negatively related to the abnormal return of shares. During the investigated period, the information asymmetry relationship with the liquidity and size (positive) and the abnormal return (negative) were at odds with previous research. The reasons for our results may be related to specific aspects of the Brazilian market, for example, in the case of abnormal returns, the deceleration of the Bovespa Index (IBovespa) or the reflection of the average return to negotiators without insider information during the period. In case of liquidity and size, the high index of issuance and negotiation of preferred shares may have influenced the results. Thus, this research contributes to the analysis of idiosyncratic characteristics of the capital market of a developing country, such as information asymmetry in stock trading and its association with the economic and financial characteristics and corporate governance of companies in the Brazilian stock market.
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spelling Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market Assimetria de informação na negociação de ações, características econômico-financeiras e governança corporativa no mercado acionário brasileiro This study sought to investigate the relationship between information asymmetry in the stock trading, economic and financial characteristics and corporate governance of listed companies in the Brazilian stock market in 2010 and 2011. To this end, the study relied on a theoretical framework for information asymmetry in the capital market to measure the asymmetry's magnitude based on the intraday stock-trading data of 194 companies. The primary results demonstrated that the informational asymmetry in the stock trading was positively related to the risk, return and liquidity of the shares as well as the cost of equity and the size of the companies. In addition, the asymmetry was negatively related to the abnormal return of shares. During the investigated period, the information asymmetry relationship with the liquidity and size (positive) and the abnormal return (negative) were at odds with previous research. The reasons for our results may be related to specific aspects of the Brazilian market, for example, in the case of abnormal returns, the deceleration of the Bovespa Index (IBovespa) or the reflection of the average return to negotiators without insider information during the period. In case of liquidity and size, the high index of issuance and negotiation of preferred shares may have influenced the results. Thus, this research contributes to the analysis of idiosyncratic characteristics of the capital market of a developing country, such as information asymmetry in stock trading and its association with the economic and financial characteristics and corporate governance of companies in the Brazilian stock market. Este estudo buscou investigar as relações existentes entre a assimetria de informação na negociação de ações, as características econômico-financeiras e a governança corporativa das empresas abertasno mercado acionário brasileiro nos anos de 2010 e 2011.Para isso,o estudo se apoiou em um referencial teórico acerca da assimetria de informação no mercado de capitais para mensurar sua magnitude a partir dos dados intradiários de negociação das ações de 194 empresas. Os principais resultados apontaram que a assimetria informacional na negociaçãodas ações esteve relacionada de forma positiva com orisco, o retorno ea liquidez das ações, além do custo de capital próprio e do tamanho das firmas. Por outro lado, esteve negativamente relacionada como retorno anormal dasações. No período investigado, as relaçõesda assimetria de informaçãocom a liquidez e o tamanho (positivas) e com o retorno anormal (negativa) seapresentaram em desacordo com pesquisas anteriores. As justificativas para esses resultados podem estar ligadas aos aspectos particulares do mercado brasileiro. No caso do retorno anormal, a desaceleração do Índice Bovespa(Ibovespa) ou o reflexo do retorno médio para os negociadores sem informação privilegiada no período. No caso da liquidez e do tamanho, o alto índice de emissão e negociação de ações preferenciais.Dessa forma, esta pesquisa contribui para a análise das características idiossincráticas do mercado de capitaisde umpaís emergente, como a assimetria de informação existente na negociação de ações e sua associação com as características econômico-financeiras e a governança corporativa das firmas no mercado acionário brasileiro. Universidade de São Paulo. Faculdade de Economia, Administração, Contabilidade e Atuária2014-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://www.revistas.usp.br/rcf/article/view/8074810.1590/S1519-70772014000100004Revista Contabilidade & Finanças; v. 25 n. 64 (2014); 33-45Revista Contabilidade & Finanças; Vol. 25 No. 64 (2014); 33-45Revista Contabilidade & Finanças; Vol. 25 Núm. 64 (2014); 33-451808-057X1519-7077reponame:Revista Contabilidade & Finanças (Online)instname:Universidade de São Paulo (USP)instacron:USPporenghttps://www.revistas.usp.br/rcf/article/view/80748/84397https://www.revistas.usp.br/rcf/article/view/80748/84398Copyright (c) 2018 Revista Contabilidade & Finançasinfo:eu-repo/semantics/openAccessMartins, Orleans SilvaPaulo, Edilson2014-05-14T14:16:55Zoai:revistas.usp.br:article/80748Revistahttp://www.revistas.usp.br/rcf/indexPUBhttps://old.scielo.br/oai/scielo-oai.phprecont@usp.br||recont@usp.br1808-057X1519-7077opendoar:2014-05-14T14:16:55Revista Contabilidade & Finanças (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
Assimetria de informação na negociação de ações, características econômico-financeiras e governança corporativa no mercado acionário brasileiro
title Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
spellingShingle Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
Martins, Orleans Silva
title_short Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
title_full Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
title_fullStr Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
title_full_unstemmed Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
title_sort Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market
author Martins, Orleans Silva
author_facet Martins, Orleans Silva
Paulo, Edilson
author_role author
author2 Paulo, Edilson
author2_role author
dc.contributor.author.fl_str_mv Martins, Orleans Silva
Paulo, Edilson
description This study sought to investigate the relationship between information asymmetry in the stock trading, economic and financial characteristics and corporate governance of listed companies in the Brazilian stock market in 2010 and 2011. To this end, the study relied on a theoretical framework for information asymmetry in the capital market to measure the asymmetry's magnitude based on the intraday stock-trading data of 194 companies. The primary results demonstrated that the informational asymmetry in the stock trading was positively related to the risk, return and liquidity of the shares as well as the cost of equity and the size of the companies. In addition, the asymmetry was negatively related to the abnormal return of shares. During the investigated period, the information asymmetry relationship with the liquidity and size (positive) and the abnormal return (negative) were at odds with previous research. The reasons for our results may be related to specific aspects of the Brazilian market, for example, in the case of abnormal returns, the deceleration of the Bovespa Index (IBovespa) or the reflection of the average return to negotiators without insider information during the period. In case of liquidity and size, the high index of issuance and negotiation of preferred shares may have influenced the results. Thus, this research contributes to the analysis of idiosyncratic characteristics of the capital market of a developing country, such as information asymmetry in stock trading and its association with the economic and financial characteristics and corporate governance of companies in the Brazilian stock market.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-01
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://www.revistas.usp.br/rcf/article/view/80748
10.1590/S1519-70772014000100004
url https://www.revistas.usp.br/rcf/article/view/80748
identifier_str_mv 10.1590/S1519-70772014000100004
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rcf/article/view/80748/84397
https://www.revistas.usp.br/rcf/article/view/80748/84398
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista Contabilidade & Finanças
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista Contabilidade & Finanças
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Economia, Administração, Contabilidade e Atuária
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Economia, Administração, Contabilidade e Atuária
dc.source.none.fl_str_mv Revista Contabilidade & Finanças; v. 25 n. 64 (2014); 33-45
Revista Contabilidade & Finanças; Vol. 25 No. 64 (2014); 33-45
Revista Contabilidade & Finanças; Vol. 25 Núm. 64 (2014); 33-45
1808-057X
1519-7077
reponame:Revista Contabilidade & Finanças (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Revista Contabilidade & Finanças (Online)
collection Revista Contabilidade & Finanças (Online)
repository.name.fl_str_mv Revista Contabilidade & Finanças (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv recont@usp.br||recont@usp.br
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