Desempenho da firma e práticas de governança corporativa: um modelo de equações simultâneas / Firm performance and corporate governance: a simultaneous equations model

AUTOR(ES)

Rayani Melega

FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

12/09/2011

RESUMO

The objective of this study is to analyze the relationship between corporate governance practices and performance of 370 Brazilian companies traded in the period of 1997 to 2007. The used data base was created from extracted data of Informative Annual reports (IAN), provided by Comissão de Valores Mobiliários (CVM) and by the data base of Economática®. To consider the reverse causality between governance variables and performance and in view of the presence of endogeneity, we used a system of simultaneous equations consisting of four equations. In this system, the corporate governance variables, capital structure, ownership structure and performance were considered endogenous. The model parameters were estimated using the method of two-stage least squares (2SLS) and three-stage least squares (3SLS). The Hausman test suggests that the obtained estimates through the tree-stage least squares are more appropriate for statistical inferences. The main results indicate that the difference between voting right and cash flow right at the possession of the last largest shareholder is negatively related to the company\ s operating performance. This result indicates that firms with greater potential for expropriation of minority shareholders by majority shareholders tend to have lower performance which confirms the hypothesis that a higher quality of corporate governance has a positive impact on firm performance. Using this methodology, it was also possible to analyze the influence of the firm performance on aspects of corporate governance. The results support that, the higher the performance the greater the difference between voting rights and cash flow right to the last major shareholder. Thus, the results indicate that the adoption of governance practices is important to explain the performance and also indicate the existence of inter-relationship between the studied variables.

ASSUNTO(S)

endogeneidade endogeneity governança corporativa simultaneous equations equações simultâneas corporate governance

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