This study investigates whether the expertise, independence, and activities of a firm's audit committee have an effect on the quality of its publicly released financial information. In particular, we examine the relationship between audit committee characteristics and the extent of corporate earnings management as measured by the level of income-increasing and income-decreasing abnormal accruals. Using two groups of U.S. firms, one with relatively high and one with relatively low levels of abnormal accruals in the year 1996, we find a significant association between earnings management and audit committee governance practices. We find that aggressive earnings management is negatively associated with the financial and governance expertise of audit committee members, with indicators of independence, and with the presence of a clear mandate defining the responsibilities of the committee. The association is similar for both income-increasing and income-decreasing earnings management, suggesting that audit committee members are concerned with both types of earnings management and do not exhibit an asymmetric loss function similar to that of auditors.

This paper addresses the question whether the mandatory adoption of International Financial Reporting Standards (IFRS) is associated with higher accounting quality. More specifically, we investigate whether the application of IFRS in 15 European Union (EU) countries is associated with less earnings management and higher timeliness, conditional conservatism, and value relevance of accounting numbers. Our results suggest that there has been some improvement in accounting quality between the pre- and post-IFRS adoption periods. In particular, we find that firms exhibit an increase in the accounting-based attributes, but a decrease in the market-based after the adoption of IFRS in 2005. Interestingly, the findings are more pronounced for the firms in countries where the distance between the pre-existing national GAAP and IFRS is important. Furthermore, we are unable to identify any change within firms that have converged their local GAAP toward IFRS before the mandatory transition.

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