Earnings Management and the Revelation Principle

When the Revelation Principle (RP) holds, managing earnings confers no advantage over revelation. We construct an explanation for earnings management that is based on limitations on owners' ability to make commitments (a violation of the RP's assumptions). Traditionally, earnings management is seen as sneaky managers pulling the wool over the eyes of gullible owners by manipulating accruals; our limited commitment story suggests that the owners, too, can benefit from earnings management. We categorize a variety of extant explanations of earnings management, along with our own, according to which of the assumptions of the RP each explanation violates. Plausibility of multiple simultaneous violations of the assumptions, and strategic use of various accounting and real instruments of earnings management, complicate the task of detecting such management in field data.