IFRS 도입 전후 회계이익정보의 지속성 변화

This paper examines the relative change in persistence between net income (NI) and comprehensive income (CI) for Korean market, which was mandated to be provided on the main body of the comprehensive income statement as a result of IFRS adoption in 2011. From an analysis of the relative change in persistence between the NI and the CI, we document that earnings persistence of NI was higher than CI before K－IFRS adoption, however, there are no significant difference in the earnings persistence between NI and CI after K－IFRS adoption more. These results show that the earnings persistence of CI is relatively getting higher than NI since K－IFRS adoption. We performed coefficient difference test and the parallelism test for each regression coefficient on the samples. Before K－IFRS adoption, there was significant difference of explanatory power between regression model including NI variable and regression model including CI variable. It menas that earnings persistence of NI was significantly higher than those of CI. But we cannot find significant difference of explanatory power between two models after K－IFRS adoption any more. We also document that IFRS adoption also affects the earnings persistence of other comprehensive income (OCI) separately. More specifically, the result of coefficient difference test says that the OCI reported on the main body of the income statements in the post IFRS adoption periods have higher earnings persistence than in the pre IFRS adoption periods. We contribute to the literature by empirically showing that the CI has additional information usefulness and can be justified for accounting standards changing. Our results also provide empirical supports for the validity of the disclosure of the OCI and the CI separately on the main body of the comprehensive income statement.