A relevância das informações contábeis com a adoção das normas internacionais: uma análise das empresas listadas no Brasil

Abstract

The study of the relevance of accounting information has come to prominence with the development of capital markets and the pursuit of timely information, quality and which are able to influence its users. As relevant accounting information, this essay adopts the concept of quality that the information owns to influence prices in the capital markets. Taking advantage of the timely convergence of brazilian accounting standards to IFRS (International Financial Reports Standards), this study aimed to determine whether the adoption of international accounting standards (IFRS) affected the relevance of accounting information of non-financial companies listed in Brazil and whether there are differences in the relevance of accounting information among the published statement sunder IFRS on a voluntary and compulsory way. The first objective examined whether there were differences in the relevance of the information through an analysis of ordinary least squares (OLS) of the financial statements of 2009 prepared in BR GAAP and IFRS, and through the analysis of panel data from the annual financial statements period 2005 to 2010. The second objective of the analysis used panel data from annual financial statements for the period 2005 to 2010, and considered as those published in voluntary IFRS for prior periods to fiscal the year of 2010. All analyzes used models of Ohlson (1995) and Barth, Cram and Nelson (2001). The models were used as dependent variables price (P) and stock returns (RET), however the results were suitable only to the dependent variable (P). The analysis indicated that there are differences in the relevance of the information of non-financial companies listed in Brazil, on its financial statements prepared in BR GAAP and IFRS. The analysis of the model of Ohlson (1995) in OLS and panel data confirmed this difference and pointed to the financial statements prepared under IFRS as the major importance. The model of Barth, Cram and Nelson (2001) in OLS also revealed differences in the relevance of the information prepared in BR GAAP and IFRS, but pointed to statements in BR GAAP as the major importance. The model of Barth, Cram and Nelson (2001) on panel data found no differences in the relevance of accounting information between BR GAAP and IFRS standards. The second objective, the results indicate that there are no differences in the relevance of accounting information between the statements prepared under IFRS on a mandatory or voluntary way, from non-financial companies listed in Brazil