We test whether accounting quality for firms applying IAS is higher than that for firms applying domestic standards using several metrics relating to earnings management, timely loss recognition, and value relevance. One advantage of using several metrics is diat, in principle, doing so permits us to determine the source of any accounting quality differences between firms that apply IAS and those that do not Another advantage is that because there are plausible alternative predictions for some of our metrics, it is possible to rule these out for some of our metrics based on findings from other metrics. For example, suppose we find that firms applying IAS have higher earnings variability and a higher frequency of large losses. These two findings are consistent with our predictions indicating higher accounting quality. However, they also are consistent with lower quality accounting resulting from error in estimating accruals and big bath earnings management If we also find that firms applying IAS have higher value relevance than firms that do not, the error in estimating accruals and big bath earnings management explanations are ruled out.