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Master's Dissertation
DOI
https://doi.org/10.11606/D.96.2009.tde-06052009-173652
Document
Author
Full name
Ricardo Luiz Menezes da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2009
Supervisor
Committee
Martins, Vinicius Aversari (President)
Barossi Filho, Milton
Salotti, Bruno Meirelles
Title in Portuguese
Divulgação de informações e liquidez de ações: evidências do setor de siderurgia e metalurgia do Brasil
Keywords in Portuguese
Custo de Capital
Liquidez de ações
Teoria da Divulgação
Abstract in Portuguese
No contexto da Teoria da Divulgação, que estuda os fenômenos relacionados à divulgação da informação, este estudo teve como objetivo estudar a relação entre liquidez das ações e o nível de divulgação das empresas brasileiras de capital aberto do setor de Siderurgia e Metalurgia no período de 1998 a 2007. Para mensurar o conceito de liquidez de ações adotou-se diversas métricas nessa pesquisa, como também o uso de metodologia desenvolvida por Lima (2007) para calcular o índice de divulgação. O interesse nessa linha surge pelo grande número de estudos no mercado internacional sobre o tema, porém não tão desenvolvido no Brasil. Para realizar esta pesquisa foram feitas análises de estatística descritiva, de posição com o uso do teste U de Mann-Whitney, correlação de Spearman e regressões com dados dispostos em painel com correção de Newey-West. Como resultado, verificou-se uma relação positiva estatisticamente e economicamente significante entre divulgação e liquidez de ações, coerente com pesquisas anteriores, principalmente as estrangeiras. Com os resultados encontrados, pode-se inferir que, conforme Amihud e Mendelson (1986), a liquidez pode influenciar o custo de capital das empresas, especificamente no setor estudado, de modo que a hipótese alternativa do trabalho não pode ser rejeitada.
Title in English
Information disclosure and stock liquidity: evidence from the Brazilian Iron and Steel sector
Keywords in English
Cost of Capital
Stock Liquidity
Theory of Disclosure
Abstract in English
In the context of the Theory of Disclosure, which studies phenomena related to information dissemination, this research aimed to study the relation between stock liquidity and the level of disclosure of Brazilian publicly-traded companies from the Iron and Steel sector between 1998 and 2007. To measure the stock liquidity concept, different measurement tools were adopted, as well as the method developed by Lima (2007) to calculate the disclosure index. The interest in this research line is due to the large number of studies about this theme in the international market, which is not so developed in Brazil. Descriptive statistical analyses of position were performed, using Mann-Whitneys U-test, Spearmans correlation and regressions with panel data and Newey-West standard errors. As a result, a statistically and economically significant positive correlation was found between disclosure and stock liquidity, in line with earlier and mainly foreign research. Based on these results, it can be inferred that, in line with Amihud and Mendelson (1986), liquidity can influence companies cost of capital, specifically in the sector under analysis, so that the alternative research hypothesis cannot be rejected.
 
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RicardoLMenezesSilva.pdf (746.74 Kbytes)
Publishing Date
2009-05-12
 
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