Purpose – Proposes a new covariance matrix robust estimator able to capture the correct orientation of the data and the large unconditional variance caused by occasional high volatility periods. Design/methodology/approach – Derives easy‐to‐compute estimates for the center and covariance...

Purpose – The purpose of this paper is to examine the risk-adjusted performance of Brazilian SRI stock funds. Design/methodology/approach – Risk-adjusted performance of 11 Brazilian socially responsible investment (SRI) funds relative to local index funds and matched pairs of funds. Findings...

Purpose – This paper aims to investigate the determinants and the evolution of voluntarily adopted firm‐level corporate governance practices in Brazil from 1998 to 2004 using broad corporate governance scores. Design/methodology/approach – The authors employ a robust panel‐data procedure...

Technological innovation is a major competitive input that directly translates into long‐term competitive advantage. Presents the results of research that examines innovative activity by country, based on several measures of technological performance. The patterns of inventiveness reported...

Purpose: The relationship between the role played by corporate governance (CG) mechanisms and shareholder wealth is an important and mature topic in some countries and regions. However, despite the considerable number of studies, the results are still inconclusive. The purpose of this paper is...

Purpose The purpose of this paper is to contrast three investment choices within the reach of individual investors: naive portfolios of Brazilian stocks; actively managed stock funds; and the Ibovespa index, which represents passive management as well as to offer insights on the performance of...