This study decomposes reported earnings into two main components: the cash flow and accrual components and provides empirical evidence on the earnings persistence and the market pricing of reported earnings and their accrual and cash flow components of Thai firms during 1999-2007. Our results on the persistence of earnings suggest that accounting rates of return are mean reverting, and the results on the persistence of cash flow and accrual components reveal that the cash flow component is more persistent than the accrual component. We also investigate the market pricing of earnings and their cash flow and accrual components using the Mishkin (1983) test. Inconsistent with Sloan (1996), our results suggest that Thai stock markets underprice the persistence of reported earnings and both cash flow and accrual components, and that Thai stock markets perceive the accrual component to be more persistent than the cash flow component. Possible explanations are that Thai stock markets are emerging markets with much smaller market capitalization and trading volume, relative to develope