O impacto do nível de transparência no custo do capital próprio das empresas do Ibovespa / The impact of how disclosure it is in the own capital cost of Ibovespa companies

AUTOR(ES)

Lílian Perobon Mazer

DATA DE PUBLICAÇÃO

2007

RESUMO

The reduction of the costs of the companies´ capital by means of a bigger level of transparency in the spreading of information is supported by literature in two theoretical chains. The first one affirms that a greater disclosure increases the liquidity of stocks in the market and, thus, reduces the cost of the organization´s capital by the transaction costs reduction or by the increase in the demand for equities of the company. The second theoretical chain suggests that bigger transparency can reduce the cost of capital by the reduction of the estimated not diversifiable risk. Based on this, the objective of this research is to verify the relation between the level of transparency of the companies of which were part of the index of the São Paulo stock exchange (BOVESPA) more specifically on December 29th of 2005 and the cost of these companies´ capital. Other control variables were used; besides the cost of the companies own capital and transparency, the size of the company, the degree of liabilities and the relation between the price of shares and the equity value of the company. To test the relation between transparency and cost of the companies own capital in the Brazilian market, capital cost was used in a multiple transversal section regression between a variable dependable capital cost and the variable independent transparency. The R-multiple was of 0,3969, indicating that the model´s variable are positively correlated. However, the analysis of R-Square shows that only 15.75% of the variation of the cost of the capital was a result of variations of the used independent variables in the regression model. As a whole, the results of this research do not enable to affirm that a bigger degree of transparency implies in a significant reduction of the cost of capital of the Brazilian companies in the studied period, confirming the result of some national and international research in the bibliographical revision.

ASSUNTO(S)

corporate governance contabilidade - governança corporativa own capital cost custo do capital próprio disclosure transparência

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