The number of firms reporting earnings on a non-GAAP basis has increased dramatically over the last decade, and non-GAAP reporting is now commonplace in capital markets. This proliferation of non-GAAP reporting has renewed both regulators' and standard setters' interests in these alternative performance metrics. For example, the SEC, FASB, and IASB have all recently questioned what this increasing reporting trend means for IFRS-and US-GAAP-based reporting and whether these measures are misleading to investors. This increasing focus on non-GAAP metrics motivates us to synthesize the nearly two decades of research on non-GAAP reporting to provide insights on what academics have learned to date about this reporting practice. Then, we utilize a novel dataset of detailed non-GAAP disclosures to provide new descriptive evidence on current trends in non-GAAP reporting and its recent proliferation. Finally, we discuss important questions for future researchers to consider in moving the literature forward.
K E Y W O R D Snon-GAAP earnings, regulation, standard setting
INTRODUCTIONManagers, financial analysts, investors, lenders, compensation committees, and other stakeholders often evaluate a company's earnings performance using metrics other than GAAP-based net income. These stakeholders generally start with GAAP earnings and back out (or exclude) earnings components that they deem to be transitory or noncash. They argue that these excluded items are less relevant for assessing firm performance and that the "non-GAAP" performance number is more appropriate for their intended purposes. The growth in these non-GAAP metrics over the past 20 years reflects a widespread acceptance of non-standard performance metrics as a way to evaluate firm performance.Although skeptics have frequently viewed non-GAAP disclosure as a threat to the traditional GAAP-based income statement, regulators recognize that non-GAAP metrics can be informative to investors and have laid the groundwork for firms to disclose these metrics in a transparent manner. Standard setters and regulators have recently renewed J Bus Fin Acc. 2018;45:259-294. wileyonlinelibrary.com/journal/jbfa