The board of directors is generally seen as an important internal governance structure. However, the empirical evidence on the board-performance relationship is not conclusive. On the other hand, a growing literature suggests that different control mechanisms, either internal or external to the firm, can interact with each other and affect performance. One such important factor is product market competition. The objective of the study is to investigate further the board-performance relationship taking into consideration the potential effect of market competition. More precisely, the study analyzes the combined effect of boards of directors' characteristics, and market discipline on firm performance. Overall, the results suggest that competition has a positive and significant impact on firm profitability and productivity. Moreover, this determinant factor creates the conditions for which the board-performance relationship is supported. In other words, for boards to be effective, firms should be exposed to a competitive environment. Copyright Blackwell Publishers Ltd, 2005.

The objective of this study is to analyze the relation between ownership concentration and corporate governance practices of a group of Canadian companies listed on the Toronto Stock Exchange. We rely on the corporate governance index developed by the Report on Business (ROB) in 2002. Our empirical results are consistent with the expropriation effect argument that predicts a negative relation between deviation from the one share‐one vote rule and corporate governance best practices. In this context, the dominant shareholder has incentives to maintain weak internal controls in order to facilitate expropriation. In addition, consistent with prior research, our results give partial support to the substitution effect argument by showing a negative impact of ownership concentration on the board composition subindex. Copyright © 2007 ASAC. Published by John Wiley & Sons, Ltd.

The objective of this study is to analyse further the governance-performance relationship while improving on two methodological issues: control for endogeneity and firm performance measurement. To mitigate the endogeneity problem, we first focus on subsamples of firms for which we ex ante expect better corporate governance to cause better performance. Second, we use generalized least squares regressions for panel data. To control for potential measurement bias, we measure firm performance using data envelopment analysis (DEA). The research is conducted in Canada over a five-year period from 2001 to 2005. Corporate governance is measured based on the Report on Business corporate governance index published by the Globe and Mail. Overall, the results show that better governed firms are more efficient. This study is in line with a growing number of recent studies that propose alternative measures of firm performance. By using DEA, this study brings together the corporate finance and productivity literature.

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