More specifically related to measurement, there are no concepts in the Framework to explain whether and why different measurement bases for assets and liabilities might lead to different types of disaggregation in the statements of comprehensive income and cash flow providing more useful information. For example, Barth (2006) explains that if all assets and liabilities were measured at fair value, comprehensive income would comprise the expected return on net assets for the period the difference between expected and actual cash flows, changes during the period in expectations about future cash flows and the expected return and initial expectations about future cash flows and discount rates to transactions, events, or circumstances that arose during the period. The present disaggregation in financial statements is not designed to convey this information and, thus, would likely merit revision if fair value measurement were used more pervasively. For example, instead of presenting changes in fair value as a single amount, such as a gain or loss on a financial instrument, perhaps disaggregating the change in fair value into expected return, expected versus actual cash flows, changes in expected cash flows, and changes in expected return would be more informative to financial statement users.