Post-Implementation Reviews for IASB and FASB Standards: A Comparison of the Process and Findings for the Operating Segments Standards

The International Accounting Standards Board (IASB) and the Financial Accounting Foundation (FAF) have recently completed post-implementation reviews (PIRs) for their converged standards on operating segments IFRS 8 and SFAS 131. The two accounting bodies use PIRs as an additional standard assessment mechanism. This paper (1) provides an overview of the main differences and similarities between the two PIR processes and (2) compares the findings of the PIRs on the operating segment standards supplemented with insights from a survey of the segment information notes of a sample of STOXX Europe 600 companies. The IASB and the FAF set the specific PIR objectives and conduct the information gathering phase differently. For the IFRS 8 and SFAS 131 PIRs, these differences meant that the FAF focused more narrowly on how SFAS 131 performs compared to the previous standard, while the IASB is aimed to more broadly assess constituents' views on whether IFRS 8 works well in practice. Comparing the PIR findings for the operating segments standards is warranted given that the standards are converged and that the standard setters re-expressed their commitment to keep them substantially converged. Uniform PIR processes could have eased the cooperation in maintaining convergence. Given the different scope of the reviews, standard setters will need to find a common ground on how to proceed and which issues to address further.